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dgavin
2011-Oct-05, 07:41 PM
The USGS in August, after assessing the threats of various volcano's, began installing 8 new monitoring stations at Newberry Caldera. These 8 new Stations will be equipped with both GPS and seismographs, connected by Radio/Internet real time monitoring. This will make Newberry Volcano the most monitored volcano in the Pacific NW, and the third most monitored Volcano in the US after Kilauea and Yellowstone.

This is not a response to any recent volcanic activity, but due to a FEMA/USGS assessment that indicates Newberry is a high threat volcano, that may produce lava flows or pyroclastic flows that could potentially damage Bend Oregon, which holds a population of over 200,000.

Historically Newberry has occasionally produced eruptions with lava flows as large as the state of Rhode Island, the last one of these about 75,000 year ago.

Squink
2012-Jan-16, 03:33 AM
Project to Pour Water Into Volcano to Make Power (http://abcnews.go.com/US/wireStory/project-pour-water-volcano-make-power-15361407)
Geothermal energy developers plan to pump 24 million gallons of water into the side of a dormant volcano in Central Oregon this summer to demonstrate new technology they hope will give a boost to a green energy sector that has yet to live up to its promise.
the federal government, Google and other investors are interested enough to bet $43 million on the Oregon project. They are helping AltaRock Energy, Inc. of Seattle and Davenport Newberry Holdings LLC of Stamford, Conn., demonstrate whether the next level in geothermal power development can work on the flanks of Newberrry Volcano, located about 20 miles south of Bend, Ore. I'll bet this has much to do with those 8 new monitoring stations. Wonder why they chose a "high threat" volcano for the injection tests?

Tensor
2012-Jan-16, 04:28 AM
Project to Pour Water Into Volcano to Make Power (http://abcnews.go.com/US/wireStory/project-pour-water-volcano-make-power-15361407) I'll bet this has much to do with those 8 new monitoring stations. Wonder why they chose a "high threat" volcano for the injection tests?

hmmmmmm, it has a history of obsidian flows, and basaltic and rhyolitic lavas, which means high silica content. High silica content and water tend to mean explosive events. So, it's a dormant volcano. Doesn't sprinkling water on a dormant huan cause it to wake up? Yeah, good idea.

grapes
2012-Jan-16, 06:16 AM
Davenport Newberry Holdings of Conn? I guess they couldn't get much farther away... :)

Romanus
2012-Jan-17, 02:27 AM
Of course, Bend also has the Three Sisters to its west to worry about, as well.

dgavin
2012-Jan-17, 04:16 AM
Squink:

The siemographs are unrelated to planned geothermal plant. The main reson for the reassement of Newberry is that Bend Oregon has grown from about 25,000 in the 1980's to 200,000. Thats what now makes it a high risk volcano in that if it does ever erupt, it has an unmanageable population around it to move out of danger.

Newberry was chosen as it is an active geothermal region, due to it being hotspot related, similar to yellowstone. However it isn't a part of a national park that prevents such a plant from being built. It's part of BLM land which means while it's generally protected (similar laws to national parks), that certain uses can be granted. You can make gold claims, homestead claims, energy claims on BLM land that you can't on National Park land.

What Isn't being mentioned that any claim on such BLM land, requires the claminant to make $100 dollars a year per arce of improments per year. Improvments can be as simple as clearing out dead wood to prevent fires, to digging of nature trails, and maintaining the required 35 trees per building absent acre. Even if they buy the land from BLM, it's still surrounded by BLM acerage and they have to comply with BLM stricutures, as BLM has a repossession/Iminent Domain clause in all thier land sales contract.

The BLM actualy likes to give out claims on it's land as they then have to spend less tax payers dollars maintaining them, because it becomes the claimants resposibility, and cost. The only thing the claimant gets, is free seedlings from BLM tree farms, if they happen to want to plant more trees.

In case you are wondering my Dad used to be the BLM District manager for Oregon, so thats how I learned all this. And Yes that means you could make a gold claim on 1/2 acre of BLM land, and get roughtly 20 seedlings a year free from the BLM tree frams, that you then plant elsewhere. Infact if you do that and tell BLM, they may look at the acreage you are planting and give you more free trees if they deems it's of value. As long as that 1/2 acre has the right number of trees, you can do anything with the free seedlings alotments you want.

Many a good christmas tree farm in Oregon started via this nice little trick. The BLM allows this because for every sucessfull X-mas tree farm, four others fail and those trees go wild. Which suits the BLM right down to thier toes. As far as BLM is concerned, the more tree's the merrier.


For Tensor:

If it wasn't for Yellowstones National Park status, they'd have had geothermal plants there years ago. Infact a few test wells were dug, but they were met with almost as much public protest as nuclear plants do. Thats why Newberry is the next best location, it's still a hot spot volcano, but there won't be an outcry over a few power plants on BLM land.

It's unknown what water injection of the quantity they are talking about into a volcanicly active region will do, so there is no real reason not to proceed with it. They never know what will really happen until they do it atleast once. If it does set off Newberry, well, it would of eventualy erupt someday anyway, so why not give it a try? If it turns out to be a problem atleast they would then know.

Personally i think the removal of all that heat for power might have opposite effects, in that it cools the magma chambers, and maybe shuts down the system altogher. So the hotspot then has to break out somewhere else.

Like migrating to the three sisters area and making that go boom prematurely...

dgavin
2012-Jan-17, 04:25 AM
Oh and technically Newberry is Inactive, not Dormant. Mt. Jefferson in Oregon is considered the only Dormant volcano, as there hasn't been activity there in over 50K years. All the other volcanoes are simply inactive. Even Mt. Tabor, a cinder cone mountain in the middle of Portland, Oregon isn't considered dormant.

Tensor
2012-Jan-17, 06:39 AM
For Tensor:

If it wasn't for Yellowstones National Park status, they'd have had geothermal plants there years ago. Infact a few test wells were dug, but they were met with almost as much public protest as nuclear plants do. Thats why Newberry is the next best location, it's still a hot spot volcano, but there won't be an outcry over a few power plants on BLM land.

It's unknown what water injection of the quantity they are talking about into a volcanicly active region will do, so there is no real reason not to proceed with it. They never know what will really happen until they do it atleast once. If it does set off Newberry, well, it would of eventualy erupt someday anyway, so why not give it a try? If it turns out to be a problem atleast they would then know.

I just don't know. We know that a combination of water and high viscosity magma tends to produce an explosive event. So, while I like the idea of trying to get hydrothermal to work (I've lived in Iceland and have seen how well it can work), pumping water into a high silica content magma area just doesn't strike me as a good idea. Also, in Iceland, they aren't injecting water into areas where is hasn't been. This is introducing water where is hasn't been.



Personally i think the removal of all that heat for power might have opposite effects, in that it cools the magma chambers, and maybe shuts down the system altogher.

Yeah, not sure how well it would do that. I'm not going to say to stop it, just an uneasy feeling about it.



So the hotspot then has to break out somewhere else. Like migrating to the three sisters area and making that go boom prematurely...

Ooooohhhhhh, I bet the people of Bend would just love that.

dgavin
2012-Mar-12, 06:32 PM
From USGS:


During August 2011, scientists and volunteers from the USGS Cascades Volcano Observatory (CVO) installed eight new real-time seismic and deformation (GPS) volcano monitoring stations around Newberry Volcano. By November 2011, scientists had linked all sites into a telemetry system that sends real-time field data to the USGS-CVO in Vancouver and the University of Washington Pacific Northwest Seismic Network (PNSN) in Seattle. With several months of careful study of background seismicity and deformation levels, the new Newberry Volcano monitoring network is now fully operational.



Over the last several months scientists at USGS-CVO and PNSN have been studying data from these new stations. They now have an adequate baseline understanding of activity at Newberry Volcano against which to compare future signs of unrest. Scientists have identified several small earthquakes in the vicinity of Newberry that would not have been detected without the network upgrade, including seismic signatures that are interpreted to be fracturing of lake ice within Newberry Volcano's caldera. The eight new GPS receivers indicate that the volcano is not deforming at present.

dgavin
2012-Mar-13, 07:24 PM
The wind/snow storm that blew through Oregon yesterday and lasy night, was not only picked up on Newberry's Seismographs, but also registered as far away as the Pine Mountain Seismographs, some 15 miles distance. (PMTN station is broadband station and does not norammly pick up wind storms)

It appears there is more weather related activity going on at both location this afternoon as well.

Gillianren
2012-Mar-13, 08:22 PM
Yeah; we have snow, though a glance out my window shows that it seems to have melted since the last time I looked out the window.

dgavin
2012-Mar-16, 06:51 PM
Still very windy, I've found Historical wind/weater data site (NOAA) that includes Bend Area, and the recorded wind/gusts per half hour logs, match exactly with the webicorders.

So in the future i'll be able to better report on non wind/storm related events as long as NOAA keeps historal data for that area.

dgavin
2012-Mar-29, 07:03 PM
There was a micro quake, registering 1.5 Magnitude about 12:43am on the 26th, at 0 km depth, directly in the middle of Paulina lake, inside of Newberry Caldera.

The Webicorders did not show this event well, but it's location and depth indicate soemthing hydrologic related.

dgavin
2012-Apr-04, 07:22 PM
Another Microquake on sunday, 0.6 Mag 1.3 KM depth, below the SW flack of Newberry Caldera.

dgavin
2012-May-18, 06:36 PM
Three microquakes in the early morning hours today on the western flank of Newberry, .9, 1.0 and 1.0 magnitudes

dgavin
2012-Aug-09, 07:06 PM
A .8 mag micro quake at Newberry on the 7th. Can't even see this event on the webicorders, it's so small.

Trebuchet
2012-Aug-27, 02:47 AM
I just want to mention that we visited the Newberry Caldera a week or so ago. I'd not have known it existed if it wasn't for this thread! Very interesting place. We drove up the gravel road to the high point on the crater rim. Awesome view from up there; it would have been better if not for all the smoke/haze from the fires. There was a volunteer up there telling folks about it as well as participating in a ham radio contest from his car. He said it helps to be at 8000 feet! We even had an American Marten run across the road in front of us on the way down. Never seen one of those before.

dgavin
2012-Aug-27, 02:08 PM
During May, just after the campgrounds open is may favorite time to visit, lots of snow still inside the crater, but almost no campers, there is also almost no staff there.

Glad to hear you enjoyed your visit. Did you get a chance to visit the Lava Cast Forest area as well nearby the mountain?

Trebuchet
2012-Aug-27, 08:05 PM
During May, just after the campgrounds open is may favorite time to visit, lots of snow still inside the crater, but almost no campers, there is also almost no staff there.

Glad to hear you enjoyed your visit. Did you get a chance to visit the Lava Cast Forest area as well nearby the mountain?

Nope, it was a bit off the main road and we were stopping off on the way from one place to another. It sounds interesting.

dgavin
2012-Sep-24, 08:10 PM
There was a rather strong avalanche or rock slide on the NW caldera rim, on the 22'nd, that registered 1.4 magnitude. Thats fairly strong for an avalanche or rock slide.

Squink
2012-Nov-02, 05:59 PM
Hydroshearing achieved! (http://blog.newberrygeothermal.com/)

Yesterday, we got both pumps running at full capability and brought the well head pressure up to 1800 psi. Shortly afterwards, two microseismic events with magnitudes close to zero occurred near the bottom of the bore hole.

Nice new general overview of the Newberry geothermal project:
Volcano power plan gets U.S. go-ahead (http://www.gizmag.com/volcano-power-plant/24633/)
The included video is a little propagandic, but does include a description of how they intend to open fracture fields at multiple depths from a single well.

dgavin
2012-Nov-06, 08:28 PM
15 microsiesmic events total in the last week, all from the NewberryEGS project that Squink mentioned.

However this well isn't usign Fracking, or the chimicals asscociated with causign rock to fracture. Instead, this is injecting water at depth, to cause exsiting faults to open up. It looks like they are saying Zone 1 injection is complete, and they'll be injecting diverter now, to force the water in next round to follow deeper (and Hotter) pathways. It also appears they have gotten a saturation in zone 1, out to 1km from the bore hole.

It loosk like this part of the process will proceed rapidly, as the diverter material used, Degrades fast (4 weeks) as the temperature warms.

Squink
2012-Nov-06, 09:25 PM
However this well isn't usign Fracking, or the chimicals asscociated with causign rock to fracture. Instead, this is injecting water at depth, to cause exsiting faults to open up.
AKA, hydraulic fracturing. I'm using the term in the general sense. As they mention in the video, they are injecting some peculiar gel* in with water, so as to temporarily seal the newly opened channels.
Oddly, they claim the stuff is "biodegradable" over time, at depth. I expect they actually mean 'thermally degraded', or 'sparingly soluble', or some such, as the bacterial population at the bottom of a km deep hole in solidified lava is likely to be very low.



---
*A chemical, if you will.

dgavin
2012-Nov-14, 08:02 PM
7 more microquakes from the hydroshearing last week. Thier blog hasn't been updated but It's safe to assume that its related to zone 2 injection activity.

dgavin
2012-Nov-19, 07:54 PM
Windstorms have had the webicorder seismographs completely saturated for the last two days. Strong wings averaging 12mph with gusts upto 60mph.

dgavin
2012-Dec-04, 08:01 PM
More Hydroshearign quakes, these will probably be going on for some time.

dgavin
2012-Dec-19, 07:41 PM
Hydroshearing quakes continue (typically less then .5 Magnitude), however this morning 6am PST there was a 2.1 magnitude quake followed by a 2.4 at 9:45 am. These two larger quakes are at depth's and in the range of the hydroshearing injection, so I'm going to say that they are related (after affects) to the hydrothermal drill operations at Newberry.

dgavin
2013-Jan-02, 08:19 PM
A few updates, the two larger events of >2 magnitude were confirmend by USGS as related to the hydroshearing. So got it right for a change.

There is a small micro swarm of quakes (6 quakes so far all 1.2 or less magnitude) that appear unrelated to the drilling, as they are 5km's to the north, going on the last few days. Nothing odd here as these quakes are in a field of about 35 inactive cinder cones. Its possible there is -some- minor relation to the hydroshearing drilling, but it's not likely, as the hydroshearing injection is only pushing out 1km from the drill site, and currently they are not injecting, but drilling deeper again to the next injection site.

Squink
2013-Mar-06, 08:23 PM
Work continues (http://www.greentechmedia.com/articles/read/enhanced-geothermal-systems-technology-advances):
Early this year, AltaRock advanced control of the process further. It injected recycled plastic into fractured rock at the Newberry site, sealing off separated reservoirs, and continued fracking them individually.

EGS, if proven safe, would turn the earth’s deep heat into productive geothermal power even in the absence of the kind of water reservoir adjacent to the heat source that makes a conventional hydrothermal well viable.

dgavin
2013-Apr-02, 07:59 PM
Newberry Caldera now has the distiction of being the best monitored volcano in the USA.

14 siesmographs in the direct vicinity, with 3 others near by in the bend/bachlor area, and even more in the sisters volcanic area and south on HWY 97.

Why so much monitoring? It is the top most dangerous volcano in Oregon, in that it is close to Bend with a population of a quarter million and has a history of an occasional VEI 7 level eruption (St. Helens was a VEI 5, Yellowstone super eruptions were VEI 8)

But more importantly, it is the first volcanic region where hydrothermal power drilling is being done -where- they planned ahead by getting siesmic equipment down first.

So no need to hide and build volcano fall out shelters. They are watching to see what, if any, effects the drilling will have in an active volcanic region.

dgavin
2013-Apr-11, 08:09 PM
A single, short duration, probable Volcanic Tremor detected inside the Caldera at 5am this morning. It behaved more like a quake in that it's duration was only about 40 seconds.

Registering 1.2 mag, at 8.4km depth which put it's right inside the middle of the estimated area of the magma pool for Newberry. Likely this was a large peice of rock breaking of the roof of the magma chamber and sloshing through the magma. Or possibly a gas pocket in the magma that burst.

Here the is waveform URL for today's event.

http://www.pnsn.org/event/60516792#waveforms

And a URL for one earlier this week that was not related to magma directly, and a standard quakes waveform.

http://www.pnsn.org/event/60515647#waveforms

beskeptical
2013-Apr-11, 11:44 PM
Hydroshearing achieved! (http://blog.newberrygeothermal.com/)

Nice new general overview of the Newberry geothermal project:
Volcano power plan gets U.S. go-ahead (http://www.gizmag.com/volcano-power-plant/24633/)
The included video is a little propagandic, but does include a description of how they intend to open fracture fields at multiple depths from a single well.


Work continues (http://www.greentechmedia.com/articles/read/enhanced-geothermal-systems-technology-advances):Lot of good stuff in those links. I looked for more information a few months back and only found these two:

Newberry Crater Geothermal (http://www.opb.org/programs/ofg/segments/view/1813)
Geothermal project starts soon. We forecast some small quakes near Newberry Volcano. (http://www.pnsn.org/blog/2012/10/03/geothermal-project-starts-soon-we-forecast-some-small-quakes-near-newberry-volcano)

As for the microquakes, those are common everywhere, they are recent to Newberry since the geothermal project, but not worrisome at all AFAIK.



Newberry Caldera now has the distiction of being the best monitored volcano in the USA.Mt St Helens has 20, Newberry has 12. (http://www.pnsn.org/seismograms?region=volcanoes) You can't say the 3 Sisters monitoring is really Newberry monitoring anymore than Mt Rainier seismographs are there to monitor Mt St Helens. If you want to look at regional seismographs, it's Puget Sound that has the most monitors (http://www.pnsn.org/seismograms/map).

And there are a lot of seismograph monitors in AK, HI, Yellowstone, and the Mammoth Lakes area in CA. Are you sure Newberry is more closely monitored?


14 siesmographs in the direct vicinity, with 3 others near by in the bend/bachlor area, and even more in the sisters volcanic area and south on HWY 97.Where do you see 14? Just curious, not questioning. Never mind, found it in one of my own links. (http://esd.lbl.gov/research/projects/induced_seismicity/egs/newberry.html)


Why so much monitoring? It is the top most dangerous volcano in Oregon, in that it is close to Bend with a population of a quarter million and has a history of an occasional VEI 7 level eruption (St. Helens was a VEI 5, Yellowstone super eruptions were VEI 8)I thought they added a few extra seismographs for the geothermal drilling? I'm not aware there is any worrisome activity in the Newberry caldera. The two active super volcanoes to watch currently are Yellowstone and the Long Valley Caldera in the Mammoth Lakes area of CA. Perhaps you know more about Newberry? It's a fascinating place. I love the obsidian and cinder cones in the area.


But more importantly, it is the first volcanic region where hydrothermal power drilling is being done -where- they planned ahead by getting siesmic equipment down first.....According to Squink's links, they do this all the time in Iceland when building geothermal energy plants.

dgavin
2013-Apr-12, 02:12 PM
I thought they added a few extra seismographs for the geothermal drilling? I'm not aware there is any worrisome activity in the Newberry caldera. The two active super volcanoes to watch currently are Yellowstone and the Long Valley Caldera in the Mammoth Lakes area of CA. Perhaps you know more about Newberry? It's a fascinating place. I love the obsidian and cinder cones in the area.


Take a look at a good satellite image of the area around Newberry (Google maps works). You will see 2 very old circular volcanic area's both about 40km diameter to the south of it next to each other, and a third, much fainter, that's been partially broken up by Newberry on it's east edge. Those are very ancient hot spot/subduction caldera's. It appears that some time in it's past Newberry area, like its sisters Yellowstone and Long Valley, produced some VEI 7+ mini super eruptions, about 1/8 the force of the Yellowstone ones.

It's assumed I think, that now that the Newberry part of the hot spot has mixed with subduction magma, it might not be capable of such eruption's any more, but the 8kw wide caldera on newberry means that it is still capable of an eruption about 1/20th the size of Yellowstone, something on the order of the eruption that formed crater lake.

The pyroclastic flow from a VEI 7 of that scale, would reach Bend and might actually consume that city entirely, if the force of it headed that direction.

Most of this is logical conjecture, based on those three old caldera's and it's current one. The evidence of those old eruptions has been buried by more recent activity, so I don't think it's considered mainstream yet.

beskeptical
2013-Apr-12, 04:33 PM
I understand Newberry's history, dgavin, and I know about the caldera. Maybe that wasn't clear from my post? :confused:

Of the three calderas and possible super-volcano eruptions, Yellowstone and Long Valley have evidence of magma chamber activity, I don't think Newberry does at the moment. Obviously there is magma there or it wouldn't make a potential geothermal site, but when I think about worrisome calderas, I don't think about Newberry. Maybe I should investigate further.

dgavin
2013-Apr-13, 12:12 AM
I'll dig up some stuff on Newberry for you

beskeptical
2013-Apr-13, 12:14 AM
I'll dig up some stuff on Newberry for youSince I'm very familiar with the geology, dig me up anything on the most recent activity in the magma chamber. Thanks.

dgavin
2013-Apr-13, 12:25 AM
An article on Tomographic Imaging of Newberry. http://around.uoregon.edu/story/research-innovation-graduate-education/academics/what-lies-beneath-3d-view-shows-magma-under-n

If that display is correct, then the magma pool while considered cool and perhaps solid, extends very close to the surface, within .5 of a km. There also does appear to be a hotter developing pool at the 8km region, which is where the recent volcanic tremor happened.

beskeptical
2013-Apr-13, 03:18 AM
It appears to be consistent with what I said, not particularly worrisome at the moment.

neilzero
2013-Apr-13, 03:42 AM
1/2 and 8 kilometers below the surface should be great as a geothermal energy source. Is anyone considering a project? Neil

dgavin
2013-Apr-13, 03:58 AM
1/2 and 8 kilometers below the surface should be great as a geothermal energy source. Is anyone considering a project? Neil

Yes see the Alta-rock links in earlier topics in this same thread, ther drilling there has already reached it's 1st phase and they are getting ready to drill to the next target depth.

dgavin
2013-Apr-16, 03:39 PM
USGS has confirmed the low frequency event on 4/11/13 as a volcanic tremor, and the first one ever recorded at Newberry, and related to water, gas, or other fluids moving around.

For a change it looks like I called this one correctly.

It is nothing to worry over as beskeptical said.

With all the additional monitoring around Newberry now, we'll probably be seeing a better picture so to speak of the caldera's low level activity, and of some things that have been missed in the past. Not three years ago it was only monitored by two seismographs, the one at Newberry, and the one at nearby Pine Mountain.

dgavin
2013-Apr-18, 09:40 PM
There was another low frequency volcanic tremor, .2 magnitude, this time at the western most group of cinder cones, on the lower flanks of newberry. 14.2 km depth and about 12km west from the crater rim.

dgavin
2013-Apr-18, 09:59 PM
My best guess here says the two volcanic tremors are nothing out of the ordinary for Newberry.

That being said, I would also guess at this point, if three or so more of these show up in the next few weeks, that Newberry would be upgraded to condition yellow earlier, as opposed to later. Mostly due to it being an already active hydrothermal area, with the addition of tremors, even if infrequent, 2 of four of the precursor conditions typically preceding activity will have been met. USGS will probably error on the side of caution if that does happen, instead of preventing a little worry.

beskeptical
2013-Apr-18, 10:01 PM
Linky next time, please so we don't have to go looking for something you already found?

Here's the seismograph readout. (http://earthquake-report.com/2013/04/12/volcano-activity-of-april-12-2013/)

They seem to be calling it a "low frequency event" rather than a harmonic tremor though clearly the graph looks like a harmonic trace. They also say it could be any fluid moving, not necessarily magma.

You may be jumping the gun, dgavin.

dgavin
2013-Apr-19, 12:09 AM
I may be jumping the gun, but I think with Newberry being a duel magma type volcano, only one of two, that they'll probably move up it's alert stage earlier if this trend continues, then later. There isn't a lot of research about how the duel types behave, so I think they might play it on the side of safety with Newberry.

And I had posted the link, right to the seismograph, it was a few posts above where you joined this thread.

http://cosmoquest.org/forum/showthread.php?122015-Newberry-Caldera-Activity&p=2120882#post2120882

beskeptical
2013-Apr-19, 12:35 AM
I may be jumping the gun, but I think with Newberry being a duel magma type volcano, only one of two, that they'll probably move up it's alert stage earlier if this trend continues, then later. There isn't a lot of research about how the duel types behave, so I think they might play it on the side of safety with Newberry.

And I had posted the link, right to the seismograph, it was a few posts above where you joined this thread.

http://cosmoquest.org/forum/showthread.php?122015-Newberry-Caldera-Activity&p=2120882#post2120882Where is the link to this: "USGS has confirmed the low frequency event on 4/11/13 as a volcanic tremor"?

dgavin
2013-Apr-19, 04:38 PM
USGS doesn't give direct links to it's articles, but you can find it here in the archives url. http://volcanoes.usgs.gov/observatories/cvo/cvo_news_archive.html

dgavin
2013-May-22, 06:53 PM
Nothing from USGS or PNSN on this yet, but a long duration (close to 5 hours) but very very weak volcanic tremor <.1 mag occured somewhere in the area of either Newberry Caldera, or the 3 Sisters. I verified this on 8 seismograph stations around the two areas and also checked this did not coincide with a larger event world wide. Although the long duration is notable, and fairly well inidacte it's magmatic in origin, it was so weak I don't think this will make the USGS or PNSN reports. It hardly qualifies as background activity.

Posting about it, as it's a notable long duration event.

Here is the cleanest display, from Sisters 'Wife' Seismograph station, of the tremors starting just after 7pm on the 20th, upto midnight.

http://www.pnsn.org/seismogram/2013/5/21/wife/bhz/cc/

dgavin
2013-Jun-11, 07:33 PM
Last week USGS report indicated starting on Jun 3rd a number of very tiny earthquakes at Neberry Caldera. To weak to even show on the USGS web quakes page, which means they were less then -2 magnitude. I checked the seismographs in the area, and these quakes are too short, too low of magnitude to determine if they are volcanic or flault zone related. As these are still going on through today, I'm going to side that they are fault type quakes, possibly related to the 1-5mm/year uplift around the north side of the caldera.

dgavin
2013-Jun-24, 02:12 PM
2 small tremors 2.1 and 1.1 mag, about 20 km to the east of Newberry, and due south from Pine Mountain, at the edge of the cinder cone field. They appear to be beep, 12-15 km, and have signature that indicates a hydrologic, gas or magma origin. Very short duration, so it's most likely a gas pocket rupture of some kind.

dgavin
2013-Jun-26, 07:15 PM
2 more quakes in the same region as the 2 tremors posted above, but these are standard stike/slip fault quakes. I think my assement of a gas pocket rupture is most likely, and now are seeing some related fault type quakes.

dgavin
2013-Jul-02, 07:11 PM
The 4 quakes I mentioned in the above two posts, were part of a swarm, that I missed reading properly as the PNSN has changed thier lower mag limits recently. It made the USGS status report on Friday however, as this is the first time any activity has been seen in this region just outside of Newberry, known at Quartz Mountain.

This is an odd area as Quartz Mountain complex seems to be a thrust/slow uplift built type of mountain area, yet, it's in the middle of the Newberry cindercone fields.

dgavin
2013-Nov-20, 08:33 PM
25 tiny microquakes last week at Newberry.


Per USGS

Recent Observations: Twelve earthquakes were located on the southeast flank of Newberry volcano November 14-15 by the Pacific Northwest Seismic Network (PNSN). An additional 12 earthquakes were detected but were too small to be located. The events began at just after midnight on Nov. 14, 12:21 a.m. local time (0821 UTC), but occurred mostly in two bursts on Nov. 15. All events are fairly shallow. The largest earthquake was magnitude 2.0, occurring at 3:10 a.m. local Nov. 15 (1110 UTC) at a depth of 3.9 km; other events have depths generally less than 6 km.

I examined a few of the seismograph records and they appear to be regular earthquakes, and are not volcanic tremors.

dgavin
2013-Nov-25, 07:51 PM
Was quiet last week, but 2 more tiny earthquakes this week so far. One in the same region of the swarm a few weeks ago, and another in the caldera. Again regular quakes and not volcanic tremors.

Squink
2013-Nov-26, 12:41 AM
Geothermal power pilot project at Newberry is on hold til spring as AltaRock looks for more funding (http://www.bendbulletin.com/csp/mediapool/sites/BendBulletin/News/story.csp?cid=1263458&sid=497&fid=151#). Not all is peachy:
There was, however, a problem with the casing for the injection well, which Petty said, will be fixed in the spring.

dgavin
2013-Dec-06, 07:57 PM
The last two weeks have seen over 300 Ice Quakes at Newberry Caldera. Thats right, Ice Quakes, not Earth Quakes. They show up really well on today's siesmographs as there is no wind.

There were also 4 more quakes in the afore mentioed SE flank region. And one hydrologic appearing tremor on the SW flank, near the AltaRock region, I'm assumign it's related to the AltaRock Hydrothermal drilling operations.

dgavin
2013-Dec-12, 07:30 PM
Ice Quakes, and now 2 Ice Tremors abound at Newberry Caldera. Here is one of the Seismographs web graphs that shows both. The Tremors are the two longer duration readings, and the 'blips' are the ice quakes.

http://www.pnsn.org/seismogram/2013/12/11/cpco/bhz/cc/

I'm not going to keep a running total of these Ice Quake, on average, it's around 50 to 60 Ice Quakes a day.

dgavin
2013-Dec-31, 08:21 PM
There was a short duration volcanic tremor at Newberry this week, on the flank west of Paulina peak. There was an additional tremor on the north flank this weak as well, but it's signature and depth of .1km, indicate a hydrothermal source. These are tremors, but not harmonic tremors. So techically it's background activity and nothting to worry over. My guess is they won't even make it onto USGS's friday update.

dgavin
2014-Oct-10, 07:09 PM
Starting 9/28 there has been an ongoing swarm of minor quakes at Newberry Caldera. 116 events so far. Cannot log them all in one post so leaving the log off for now.

dgavin
2014-Oct-11, 01:46 PM
Tremors (-unofficially-) detected at Newberry, starting at around 11am PDT yesterday and going though 5pm. Very similar signature to wind gusts, but every 15 minute wind records show only peaks of 10mph gusts, and avg. 3mph normal. Additionally these peaks of wind occurred outside where these reading show, with no readings then. Some of these readings were picked on Pine Mt.'s strong motion station. I think because that station almost always show's wind, and did not, just showed the strongest events, I can discount this being wind related readings.

Squink
2014-Oct-11, 02:16 PM
116 events so far.Bįršarbunga lite!

dgavin
2014-Oct-12, 12:37 PM
Very weak tremors (the webicorders resolution not good enough to tell if harmonic tremors or not) Friday night going to sat. morning. With another tremor event around noon. A few more quakes, and... the very weak signature of rock breaking here and there. The spectrograph from one station is very very similar to the low freq spectrograph of ETS tremors. So I'm going to say it. It looks to be low frequency harmonic tremors.

dgavin
2014-Oct-12, 12:46 PM
There have been no reports of deformation, increases in gas emissions, or changes in Newberry's hydrothermal system. So while tremors are interesting, they don't indicate any threat as of yet.

Spectrograph of the strongest tremor: http://pnsn.org/spectrogram-image/2014/10/12/0940/volcanic/newberry

dgavin
2014-Oct-13, 02:09 PM
More Quakes, about 2-7 a day Average, so it's not a rate to be worried over. More Tremors, and a bit more frequent, they are starting to show on the webicorders better, so they are increasing in strength, slightly.

dgavin
2014-Oct-14, 01:56 AM
Ok as much as I am not an alarmist when it comes to volcanoes, this one has got my attention. Starting at about 8am this morning, just after I posted, there was a swarm of tremors. Not Quakes. This went on for 8 hours and cumulated in a 8 minute long harmonic tremor. http://pnsn.org/seismogram/2014/10/13/nn19/ehn/uw/01?img_start=2014-10-14+00%3A00%3A00+UTC&img_start_int=1413244800&img_stop=2014-10-15+00%3A00%3A00+UTC

Again the wind history records don't match the webicorders, so I'm going to say it...

Chance of magma movement: 95%
Chance of cinder cone minor eruption (VEI < 1): 2%

dgavin
2014-Oct-15, 12:38 AM
The recent flurry of quakes, and the apparent tremors, are being reported as 'Stimulation of the Hot Rocks', by AltaRock Energy's Hydrothermal operation. Which seems reasonable, the tremor swarm yesterday matches a period of water injection (hence the 8am to 4pm time line of the swarm).

So standing down on my chances, but going to keep an eye on this.

Squink
2014-Oct-15, 10:47 PM
reported as 'Stimulation of the Hot Rocks', by AltaRock Energy's Hydrothermal operation.
Ahh, so they found some funding and got their well fixed. Good.
Here's their latest blog entry: Update from the Field: Stimulation Underway (http://blog.newberrygeothermal.com/) Oct. 14, 2014

dgavin
2014-Oct-30, 11:37 PM
The Swarm and Tremors have stopped in the last weeks, coinciding with the pumping in of the heat-degradable sealant, and then the waiting for that to take effect.

Squink
2015-Jun-22, 05:57 PM
AltaRock's Newberry blog (http://blog.newberrygeothermal.com/)
Progress appears to be glacial, but is ongoing.
Latest is that DOE may be building its own geothermal lab near the volcano. (see blog).

Trebuchet
2015-Jul-03, 02:27 PM
We thought about making another visit to Newberry during our recent road trip but wound up spending a couple of days in a larger caldera instead -- Yellowstone!

dgavin
2016-Jul-24, 01:08 AM
This won't be mentioned in any USGS or Volcano blog, but Chugging was detected at Newberry on the 18th. Attaching the Seismograph image. Chugging typically only occurs when fresher (hotter) magma is injected in an area with cooler magma, causing the cooler magma to Boil. Chugging is kind of similar an old fashioned coffee pot. Nothing to worry over though. It showed up on 7 of the 14 seismographs in the area, the cleanest and strongest coming from the central station in the caldera.