Is Long Valley Supervolcano Activating? Swarm Just started

reply to post by kro32


ummm - Hun

Very well then I will try to add to the debate instead of distracting from it. I know these calderas very well actually and even studied in depth the 2 most recent ones. The 1815 Tambora and 1883 Krakatau explosions so I will watch and see if there is anything beneficial I can add. I'm not much nor ever have been much for studying charts hehe

Krakatau is off the Coast of Indonesia - How is this helpful? - scratchs head

reply to post by kro32


Would the release of gases be something to look for at other supervolcanoes like Yellowstone? I live in Wyoming.

I swear, this stuff is so fascinating. If I won the lottery tomorrow I would immediately go back to school for a second bachelor's degree, this time in geology or maybe even paleogeology.

reply to post by megabogie


You know, kro has every right to post a contradictory opinion. "Denying ignorance" is not shutting down unpopular opinions, or those who dare to challenge sacred posters on ATS. Its very rude to tell someone "if you dont like it, leave" and it is not the ATS way.

I happen to like TA's threads, but I also like to hear the opinions of others who have studied the field, and contradictory opinions elevate the debate to a much higher level than you ever see in a thread where everyone is just stroking one anothers egos.

I have learned something from the whole exchange, and the thread. I didnt even know we had two Super Volcanos in the US. Im a little disappointed in all those fear mongering "Supervolcano" videos I have watched who act like Yellowstone is the only game in town.

Originally posted by Anmarie96
reply to post by kro32

 

ummm - Hun

Very well then I will try to add to the debate instead of distracting from it. I know these calderas very well actually and even studied in depth the 2 most recent ones. The 1815 Tambora and 1883 Krakatau explosions so I will watch and see if there is anything beneficial I can add. I'm not much nor ever have been much for studying charts hehe

Krakatau is off the Coast of Indonesia

- How is this helpful? - scratchs head

Though not directly related to volcano at hand, I guessing Kro is just letting us know that the area of study is in keeping with the topic at hand and therefore opinions posted on said topic can probably be accepted as knowledgeable due to the area of study...Just guessin

Small one - Lake Tahoe

Magnitude
1.5
Date-Time
Saturday, April 16, 2011 at 02:34:10 UTC
Friday, April 15, 2011 at 07:34:10 PM at epicenter
Location
39.231°N, 120.102°W
Depth
6.1 km (3.8 miles)
Region
NORTHERN CALIFORNIA
Distances
5 km (3 miles) WSW (250°) from Tahoe Vista, CA
7 km (4 miles) W (261°) from Kings Beach, CA
10 km (6 miles) NNE (25°) from Sunnyside-Tahoe City, CA
15 km (9 miles) SE (144°) from Truckee, CA
35 km (22 miles) NNW (343°) from South Lake Tahoe, CA
140 km (87 miles) ENE (57°) from Sacramento, CA
Location Uncertainty
horizontal +/- 0.4 km (0.2 miles); depth +/- 1.2 km (0.7 miles)
Parameters
Nph= 9, Dmin=9 km, Rmss=0.07 sec, Gp=115°,
M-type=duration magnitude (Md), Version=0
Source
California Integrated Seismic Net:
USGS Caltech CGS UCB UCSD UNR
Event ID
nc71558961

earthquake.usgs.gov...

reply to post by dalloway


(psst. Hey dalloway...Ask him to tell you about the massive explosion at St. Helens they were so confident wouldn't happen. It exceeded their worst expectations by like miles into the atmosphere. So much for gas emissions, huh?)

Ok maybe I reacted a bit harshly, but come now how many times have we had arrogant responses on ATS. This site is full of responses that can be taken as arrogant and rude. I guess I was just saying this is what gives the site flavor, and honestly I have seen even TA react arrogantly to people when they have disagreed with him in the past.

To the subject at hand I am very interested in the topic and I have been reading it all day. I do respect TA and his level of intelligence on the subject. I am a avid reader of the Yellowstone forum and both TA and Puterman's post's I have a high regard of respect for both of them.

I am obviously not in the area that is being affected by all this but lets be honest the eruption of a "Super Volcano" is not just a US issue but a world wide issue so of course I look at it with seriousness and concern. I appreciate all that has been done today research and time wise. I don't understand enough about seismology to even pretend to understand any of what is happening. So please don't mistake my post for one of ignorance and foolishness. I guess I was just saying to imply someone shouldn't even be in the thread at all is pointless as I would rather have a 100 opposing opinions then a thousand that all agree with every word the OP has to say.

Originally posted by megabogie

You can have contrary beliefs but to imply your beliefs are better than mine due to your education..that is arrogance.

No its not. Its the truth. All opinions are not created equal, and while education is not a guarantee your opinion will be right or the best, or better than a skilled and self educated lay person, education is an indication of some basic level of competence. Hence all those tests and stuff.

Some beliefs are based on absolute rubbish, scientifically, and to pretend that in any of the sciences "all beliefs are equally valid" is just ridiculous. Science doesnt work that way. And its not arrogance to point out that fact. Its truth.

reply to post by Illusionsaregrander


I apologise if I came off as @itchy, it was not my intention. I guess I felt like a mother bear who's cub was threatened. I too enjoy the sharing of information..that's why we are all here. Besides, Kro turned out to be a good guy. I will contain myself in the future

OK - waited all day for this - didn't get the weekly update last week - those text book folks slack sometimes. any who now that my pc appears to be functions for the moment -

LONG VALLEY OBSERVATORY WEEKLY UPDATE
Friday, April 15, 2011 2:16 PM PDT (Friday, April 15, 2011 21:16 UTC)


LONG VALLEY VOLCANIC CENTER VOLCANO (CAVW #1203-14-)
37°42' N 118°52'12" W, Summit Elevation 7231 ft (2204 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Twelve small earthquakes between magnitude 1.0 and 2.3 occurred in the Long Valley region since the last update on April 8, 2011. All of these events occurred in the Sierra Nevada block south of the caldera.

It does not appear that the Folks at LVO seem this swarm is relavant - yet :-)

Linky

reply to post by megabogie


I understand, and I totally respect your change of heart. I just firmly believe that dissenting opinions are crucial for keeping the level of debate as high as possible. Its easy to fall into "group think" and miss things if everyone is too buddy buddy, and especially if dissenters get bullied into shutting up. And you were not the only one who came off a little harshly towards kro32.

ATS is great because of ALL of us, because we challenge one another, ask questions others might miss, and push each other to higher standards.

Originally posted by TrueAmerican
reply to post by dalloway

 

(psst. Hey dalloway...Ask him to tell you about the massive explosion at St. Helens they were so confident wouldn't happen. It exceeded their worst expectations by like miles into the atmosphere. So much for gas emissions, huh?)

With respect...Maybe time to unpuff your tail for a minute TA, Kro is trying to work with us here, Just sayin

Numero Two

Originally posted by TrueAmerican
reply to post by dalloway

 

(psst. Hey dalloway...Ask him to tell you about the massive explosion at St. Helens they were so confident wouldn't happen. It exceeded their worst expectations by like miles into the atmosphere. So much for gas emissions, huh?)

So true, TA. St. Helen's was a real stinker and I'm sure is a thorn in the collective side of the geology community. Point taken. TA=

So kro32, what did happen there? Any thoughts on why they were so wrong about the impending St. Helen's eruption? Were they downplaying what they knew to be true in order to avoid a panic? Or were they genuinely caught off guard? Or is it maybe that our monitoring technology wasn't adequately advanced at the time?

reply to post by Illusionsaregrander


I've defended TA on a few threads because someone usually starts name calling rather than contributing. But I do prefer when we share our opinons, expertise and research. And it seems we're all back in line now and ironically the quakes have slowed down. Thanks for being diplomatic with your admonishment!

Originally posted by Phantom28804
Ok maybe I reacted a bit harshly, but come now how many times have we had arrogant responses on ATS. This site is full of responses that can be taken as arrogant and rude. I guess I was just saying this is what gives the site flavor, and honestly I have seen even TA react arrogantly to people when they have disagreed with him in the past.

To the subject at hand I am very interested in the topic and I have been reading it all day. I do respect TA and his level of intelligence on the subject. I am a avid reader of the Yellowstone forum and both TA and Puterman's post's I have a high regard of respect for both of them.

I am obviously not in the area that is being affected by all this but lets be honest the eruption of a "Super Volcano" is not just a US issue but a world wide issue so of course I look at it with seriousness and concern. I appreciate all that has been done today research and time wise. I don't understand enough about seismology to even pretend to understand any of what is happening. So please don't mistake my post for one of ignorance and foolishness. I guess I was just saying to imply someone shouldn't even be in the thread at all is pointless as I would rather have a 100 opposing opinions then a thousand that all agree with every word the OP has to say.

The site would be meaningless IMO without opposing opinions. I believe it's the delivery style of some of the opposing opinions I have grief with. Respectful posting has to be the norm. We don't grow unless healthy debate ensues in any topic. Reply as you would want others to reply? I don't know...The bad noise just fogs everything up I think

Originally posted by TrueAmerican
reply to post by dalloway

 

(psst. Hey dalloway...Ask him to tell you about the massive explosion at St. Helens they were so confident wouldn't happen. It exceeded their worst expectations by like miles into the atmosphere. So much for gas emissions, huh?)

Not really sure how to respond to this since every scientist i've read about knew this would happen. That's kind of why they issued an evacuation notice. As for exceeding expectations well no one can actually predict how big an eruption will be beyond the geologic evidence of past eruptions from that volcano.

You may be looking at a statement from just one particular scientist, which there always is one, who gave seismic evidence as the reason why he didn't think an eruption is evident. As a rule earthquakes will precede a volcanic eruption on this there really is no doubt.

In the case of Mt. St. Helens, earthquake activity started in mid-March before the eruption in May. Activity in March bgegan suddenly with nearly continuous, shallow swarms of earthquakes. Unfortunately there was no additional increase in earthquakes immediately preceding the catastrophic eruption on May 18. This is one reason that earthquake swarms are not a good indicator by themselves of increased volcanic activity.

The reason I brought up Krakatau is because it is only 1 of 2 that have occurred in recent historic times. The last huge caldera eruption was 27,000 years ago in New Zealand. Yellowstone last erupted about 640,000 years ago and Long Valley about 700,000 years ago. Krakatau gives us the most recent geological evidence to study in regards to caldera eruptions.

It's fun to look at seismic data in Long Valley and wonder what's going on but you also have to look at other data when your thinking about forecasting an eruption. Believe me when I say that every single part of this volcano has a monitor on it. Geologist monitor not only seismic activity but also monitor thermal, magnetic and hydrologic conditions. They monitor the land surface to detect tilting or swelling of the volcano, they vonitor the volcanic gas emissions and also study the geologic history of the area.

So there is alot more that goes into the study of a volcanic area than just earthquake swarms.

Wow... I posted this info LAST NIGHT - and didn't even get a rise out of it, but let true american drive by with a bigger loudspeaker, and whoosh, under the carpet I go....

Thanks . Anyone got any of the 'Love My Carpet' stuff around, it kinda stinks under here....

posted on 14-4-2011 @ 11:06 PM

ok, I know, new post on an old thread... but now there's a new flurry of what appears to be earthquake flurries (resembling a harmonic tremor?) comming from the Hawthorne, Nevada area... not exactly within the LV Caldera 'zone' but damn close enough to consider it a L.V. Caldera magma chamber extention possibility!

Here's the U.S.G.S. data:

1.1 2011/04/14 21:55:08 38.397N 118.745W 5.8 18 km (11 mi) SW of Hawthorne, NV
1.2 2011/04/14 20:55:28 38.401N 118.742W 6.3 17 km (11 mi) SW of Hawthorne, NV
1.2 2011/04/14 20:08:02 38.404N 118.728W 7.0 16 km (10 mi) SW of Hawthorne, NV
1.4 2011/04/14 19:51:14 38.392N 118.754W 0.9 19 km (12 mi) SW of Hawthorne, NV
1.2 2011/04/14 19:28:13 38.373N 118.768W 0.5 21 km (13 mi) SW of Hawthorne, NV
1.3 2011/04/14 18:46:13 38.477N 118.314W 0.0 12 km ( 8 mi) WSW of Luning, NV
1.3 2011/04/14 17:03:16 38.404N 118.781W 0.4 19 km (12 mi) SW of Hawthorne, NV
1.3 2011/04/14 16:09:25 38.380N 118.742W 7.4 19 km (12 mi) SSW of Hawthorne, NV
1.5 2011/04/14 15:18:06 38.393N 118.734W 4.6 18 km (11 mi) SSW of Hawthorne, NV
1.8 2011/04/14 15:14:08 38.396N 118.743W 7.1 18 km (11 mi) SW of Hawthorne, NV
1.4 2011/04/14 12:14:36 38.379N 118.781W 1.7 21 km (13 mi) SW of Hawthorne, NV
1.8 2011/04/14 11:59:17 38.373N 118.762W 0.5 21 km (13 mi) SW of Hawthorne, NV
1.1 2011/04/14 10:44:57 38.397N 118.732W 17.7 17 km (11 mi) SW of Hawthorne, NV
1.4 2011/04/14 10:27:22 38.400N 118.781W 0.6 20 km (12 mi) SW of Hawthorne, NV
1.5 2011/04/14 10:25:37 38.065N 118.945W 3.8 17 km (11 mi) SSE of Bodie, CA
1.1 2011/04/14 09:34:56 38.392N 118.739W 18.4 18 km (11 mi) SW of Hawthorne, NV
2.0 2011/04/14 09:08:09 38.393N 118.728W 18.9 17 km (11 mi) SSW of Hawthorne, NV
1.0 2011/04/14 08:23:12 38.401N 118.698W 5.0 15 km ( 9 mi) SSW of Hawthorne, NV
2.6 2011/04/14 07:59:58 38.390N 118.728W 14.4 18 km (11 mi) SSW of Hawthorne, NV
1.5 2011/04/14 07:01:34 38.368N 118.727W 23.4 19 km (12 mi) WNW of Qualeys Camp, NV
1.7 2011/04/14 06:42:25 38.355N 118.759W 4.5 21 km (13 mi) WNW of Qualeys Camp, NV
1.1 2011/04/14 06:21:21 38.380N 118.742W 18.6 19 km (12 mi) SSW of Hawthorne, NV
1.6 2011/04/14 06:02:46 38.383N 118.747W 17.8 19 km (12 mi) SW of Hawthorne, NV
3.1 2011/04/14 05:05:56 38.381N 118.748W 13.5 19 km (12 mi) SW of Hawthorne, NV
3.0 2011/04/14 04:58:08 38.380N 118.746W 13.9 19 km (12 mi) SW of Hawthorne, NV
2.0 2011/04/14 04:48:38 38.393N 118.743W 7.4 18 km (11 mi) SW of Hawthorne, NV
1.3 2011/04/14 04:35:33 38.386N 118.789W 1.9 21 km (13 mi) SW of Hawthorne, NV
1.1 2011/04/14 04:16:33 38.376N 118.751W 28.2 20 km (12 mi) SW of Hawthorne, NV
1.5 2011/04/14 03:48:25 38.083N 118.902W 3.5 17 km (11 mi) SE of Bodie, CA
1.4 2011/04/14 03:44:45 38.401N 118.720W 5.8 16 km (10 mi) SSW of Hawthorne, NV
1.5 2011/04/14 03:18:29 38.370N 118.836W 1.7 23 km (15 mi) NE of Bodie, CA
1.8 2011/04/14 02:51:42 38.387N 118.734W 5.7 18 km (11 mi) SSW of Hawthorne, NV
1.4 2011/04/14 02:41:15 38.368N 118.761W 5.8 21 km (13 mi) SW of Hawthorne, NV
1.1 2011/04/14 02:30:38 38.405N 118.724W 17.1 16 km (10 mi) SSW of Hawthorne, NV
1.4 2011/04/14 02:11:17 38.404N 118.739W 0.5 17 km (10 mi) SW of Hawthorne, NV
1.2 2011/04/14 01:55:31 38.373N 118.816W 2.5 24 km (15 mi) SW of Hawthorne, NV
2.1 2011/04/14 01:31:45 38.389N 118.744W 18.0 18 km (11 mi) SW of Hawthorne, NV
1.4 2011/04/14 01:02:58 38.397N 118.753W 6.0 18 km (11 mi) SW of Hawthorne, NV
1.2 2011/04/13 23:54:05 38.375N 118.760W 6.0 21 km (13 mi) SW of Hawthorne, NV
1.5 2011/04/13 23:00:33 38.386N 118.772W 0.3 20 km (13 mi) SW of Hawthorne, NV
1.3 2011/04/13 22:01:30 38.384N 118.756W 15.2 19 km (12 mi) SW of Hawthorne, NV
1.3 2011/04/13 22:00:35 38.383N 118.772W 0.8 20 km (13 mi) SW of Hawthorne, NV
2.8 2011/04/13 19:28:21 38.387N 118.734W 16.0 18 km (11 mi) SSW of Hawthorne, NV
1.8 2011/04/13 18:24:04 38.378N 118.764W 0.5 21 km (13 mi) SW of Hawthorne, NV
1.5 2011/04/13 17:52:51 39.071N 119.290W 8.0 14 km ( 9 mi) NW of Yerington, NV
1.9 2011/04/13 17:52:31 38.317N 118.353W 0.8 15 km ( 9 mi) E of Qualeys Camp, NV
1.1 2011/04/13 17:51:31 38.392N 118.746W 2.0 18 km (11 mi) SW of Hawthorne, NV
2.3 2011/04/13 17:25:33 38.385N 118.750W 9.2 19 km (12 mi) SW of Hawthorne, NV
1.7 2011/04/13 16:39:41 38.412N 118.757W 0.9 17 km (11 mi) SW of Hawthorne, NV
3.1 2011/04/13 15:59:19 38.382N 118.737W 16.6 19 km (12 mi) SSW of Hawthorne, NV
1.4 2011/04/13 15:37:55 38.385N 118.745W 18.2 19 km (12 mi) SW of Hawthorne, NV
4.2 2011/04/13 15:16:08 38.386N 118.742W 15.4 19 km (12 mi) SW of Hawthorne, NV
3.6 2011/04/13 15:15:20 38.379N 118.752W 12.0 20 km (12 mi) SW of Hawthorne, NV
4.4 2011/04/13 15:10:08 38.371N 118.748W 13.1 20 km (13 mi) SSW of Hawthorne, NV
1.1 2011/04/12 20:12:23 38.358N 118.750W 4.7 20 km (13 mi) WNW of Qualeys Camp, NV
1.5 2011/04/12 12:00:28 38.373N 118.725W 16.7 19 km (12 mi) WNW of Qualeys Camp, NV
1.3 2011/04/12 00:01:09 38.401N 118.724W 16.3 16 km (10 mi) SSW of Hawthorne, NV
1.8 2011/04/11 23:27:51 38.365N 118.746W 11.0 20 km (13 mi) WNW of Qualeys Camp, NV
1.0 2011/04/11 09:26:33 38.387N 118.746W 14.1 19 km (12 mi) SW of Hawthorne, NV
1.3 2011/04/11 07:51:02 38.393N 118.716W 7.5 17 km (10 mi) SSW of Hawthorne, NV
1.5 2011/04/11 06:55:58 39.505N 119.936W 5.4 2 km ( 1 mi) ESE of Verdi-Mogul, NV
1.2 2011/04/11 05:26:57 38.377N 118.769W 1.4 21 km (13 mi) SW of Hawthorne, NV
1.2 2011/04/11 04:29:51 38.379N 118.755W 0.1 20 km (12 mi) SW of Hawthorne, NV
1.4 2011/04/11 04:02:08 38.387N 118.779W 1.7 21 km (13 mi) SW of Hawthorne, NV
1.8 2011/04/11 02:33:39 38.389N 118.748W 7.2 19 km (12 mi) SW of Hawthorne, NV
1.3 2011/04/11 02:20:46 38.389N 118.730W 6.8 18 km (11 mi) SSW of Hawthorne, NV
1.9 2011/04/11 01:18:12 38.388N 118.742W 14.6 18 km (11 mi) SW of Hawthorne, NV
1.5 2011/04/11 01:14:33 38.391N 118.749W 6.6 19 km (12 mi) SW of Hawthorne, NV
2.4 2011/04/11 00:56:34 38.385N 118.749W 9.8 19 km (12 mi) SW of Hawthorne, NV
1.2 2011/04/11 00:18:12 38.408N 118.713W 0.2 15 km ( 9 mi) SSW of Hawthorne, NV
1.4 2011/04/10 23:46:45 38.385N 118.740W 12.1 19 km (12 mi) SSW of Hawthorne, NV
2.6 2011/04/10 23:25:19 38.387N 118.734W 12.5 18 km (11 mi) SSW of Hawthorne, NV
1.6 2011/04/10 23:08:03 38.381N 118.733W 12.4 19 km (12 mi) SSW of Hawthorne, NV
2.1 2011/04/10 23:00:59 38.384N 118.739W 10.9 19 km (12 mi) SSW of Hawthorne, NV
1.7 2011/04/10 22:21:39 38.377N 118.748W 14.2 20 km (12 mi) SSW of Hawthorne, NV
2.3 2011/04/10 22:10:20 38.385N 118.726W 15.2 18 km (11 mi) SSW of Hawthorne, NV
2.6 2011/04/10 21:48:07 38.386N 118.732W 9.6 18 km (11 mi) SSW of Hawthorne, NV
1.2 2011/04/10 21:33:13 38.396N 118.715W 12.1 16 km (10 mi) SSW of Hawthorne, NV
2.1 2011/04/10 21:15:36 38.395N 118.714W 14.4 17 km (10 mi) SSW of Hawthorne, NV
1.9 2011/04/10 20:49:58 38.380N 118.748W 16.9 19 km (12 mi) SW of Hawthorne, NV
1.9 2011/04/10 20:14:26 38.376N 118.746W 13.2 20 km (12 mi) SSW of Hawthorne, NV
1.6 2011/04/10 20:09:47 38.378N 118.745W 16.5 19 km (12 mi) SSW of Hawthorne, NV
1.7 2011/04/10 20:08:14 38.385N 118.736W 16.2 18 km (11 mi) SSW of Hawthorne, NV
2.9 2011/04/10 19:54:58 38.382N 118.731W 9.4 18 km (11 mi) SSW of Hawthorne, NV
1.9 2011/04/10 19:33:03 38.343N 118.863W 1.4 20 km (12 mi) NE of Bodie, CA
1.6 2011/04/10 19:00:17 38.386N 118.733W 13.8 18 km (11 mi) SSW of Hawthorne, NV
1.2 2011/04/10 18:35:31 38.384N 118.736W 4.9 19 km (12 mi) SSW of Hawthorne, NV
1.4 2011/04/10 18:31:02 38.385N 118.730W 14.8 18 km (11 mi) SSW of Hawthorne, NV
1.6 2011/04/10 18:29:50 38.384N 118.731W 12.8 18 km (11 mi) SSW of Hawthorne, NV
1.3 2011/04/10 18:27:12 38.386N 118.731W 16.8 18 km (11 mi) SSW of Hawthorne, NV
2.3 2011/04/10 18:11:29 38.370N 118.748W 12.3 20 km (13 mi) SSW of Hawthorne, NV
3.3 2011/04/10 18:05:00 38.375N 118.739W 6.0 20 km (12 mi) SSW of Hawthorne, NV
1.6 2011/04/10 17:52:10 38.385N 118.734W 12.2 18 km (11 mi) SSW of Hawthorne, NV
3.0 2011/04/10 17:31:09 38.384N 118.745W 12.4 19 km (12 mi) SW of Hawthorne, NV
2.6 2011/04/10 17:27:00 38.372N 118.736W 16.1 20 km (12 mi) WNW of Qualeys Camp, NV
4.2 2011/04/10 17:22:21 38.379N 118.735W 13.8 19 km (12 mi) SSW of Hawthorne, NV
4.0 2011/04/10 17:21:16 38.374N 118.739W 15.3 20 km (12 mi) SSW of Hawthorne, NV
3.5 2011/04/10 17:20:17 38.363N 118.741W 9.4 20 km (12 mi) WNW of Qualeys Camp, NV
3.3 2011/04/10 17:13:11 38.337N 118.746W 10.2 19 km (12 mi) W of Qualeys Camp, NV
1.3 2011/04/10 17:05:09 38.384N 118.733W 13.2 18 km (11 mi) SSW of Hawthorne, NV
2.8 2011/04/10 17:01:08 38.374N 118.732W 15.2 19 km (12 mi) SSW of Hawthorne, NV
2.4 2011/04/10 16:59:36 38.373N 118.737W 13.7 20 km (12 mi) SSW of Hawthorne, NV
1.4 2011/04/10 16:51:51 38.373N 118.740W 12.3 20 km (12 mi) SSW of Hawthorne, NV
2.1 2011/04/10 16:45:26 38.369N 118.739W 12.1 20 km (12 mi) WNW of Qualeys Camp, NV
3.5 2011/04/10 16:06:00 38.374N 118.741W 9.7 20 km (12 mi) SSW of Hawthorne, NV
3.0 2011/04/10 16:02:16 38.373N 118.738W 10.1 20 km (12 mi) SSW of Hawthorne, NV
1.3 2011/04/10 15:57:34 38.377N 118.743W 11.0 19 km (12 mi) SSW of Hawthorne, NV
1.7 2011/04/10 10:04:55 39.038N 118.804W 5.6 8 km ( 5 mi) NNE of Schurz, NV
1.8 2011/04/08 02:21:00 39.924N 118.158W 0.0 27 km (17 mi) NNW of Dixie Valley, NV

So what occurred at Markleeville, CA. (which is now quiet) is apparently now occurring at Hawthorne, NV.

Your comments?...

well... now I'll go read everyone's comments.

reply to post by kro32


Thank you, kro32. Your answer proves why it is such a boon to have a formally educated geologist around! With your answer in mind, am I correct in understanding that it would not be likely to see a large eruption from Long Valley, Yellowstone, Toba or any of the other biggies with just earthquakes as a warning signal? The vision that scares me is the Hollywood-esque vignette of a giant super-eruption with no real reliable warning signs. I fear the scenario of logging onto ATS, seeing a new thread forecasting the imminent eruption of one of the biggies, and then actually witnessing the eruption a few hours later. I long for the assurance that there would be unmistakable signs and portents that an eruption was on the way, well before a mega eruption would ever take place. I guess that's what all of us probably hope for.

reply to post by TrueAmerican


In case you missed it:

Earthquake Activity Continues Near Hawthorne
Dozens of earth quakes continue to rattle residents in an area just south west of Hawthorne, Nevada. Seismologists at UNR are keeping a close eye on that activity. So far, the largest quake in the swarm is a 4.4, at 3:10 Wednesday afternoon.

And seems to be going around, for what's it's worth:

The Philippine Institute of Volcanology and Seismology (PHIVOLCS) maintained the Alert Level 2 hoisted over Taal Volcano, as 20 volcanic earthquakes were recorded during the past 24 hours.

Alert 2 status means present activities could eventually lead to an eruption, according to Phivolcs.

reply to post by Heyyo_yoyo


Ack, Heyyo, sorry about that. I think sometimes timing is everything. I think possibly TA's post just had more visibility than yours did because of the posting times of yours versus his.