Quake Watch 2013

West coast activity so far

Tuesday January 22 2013, 19:03:45 UTC Central California -- 1.8
Tuesday January 22 2013, 19:01:29 UTC Central California -- 1.8
Tuesday January 22 2013, 18:56:38 UTC Central California -- 2.4
Tuesday January 22 2013, 18:45:57 UTC Central California -- 1.2
Tuesday January 22 2013, 18:33:46 UTC Southern California -- 1.9

Tuesday January 22 2013, 18:29:57 UTC offshore Nayarit, Mexico -- 4.7

Tuesday January 22 2013, 17:58:41 UTC Northern California -- 3.0

Has anyone noticed the very high number of small quakes in Nevada?

There were 29 small quakes on the 20th alone, and they have continued at a slower but more than normal pace. It wasn't too far back that it was unusual to see more than a couple a month in Nevada. There were 4 more on the 21st and so far there are 2 more today with over 4 hours to go on the UTC day. There have also been several in Washington, Utah and Oregon as well. All in all they are way above average for the inland parts of the Pacific Northwest.

USGS SOURCE

Reaction from 2 analysts with the operator(Federal University of Rio Grande do Norte/UFRN) of RCBR station - they say it was a false trigger from the Sumatra waves.

twitter.com/LabSisUFRN/status/293668835150688257

sismosne.blogspot.com/2013/01/falso-tremor-proximo-recife-em-21012013.html

Before it disappears beyond the 24h moving wall, the GSN heliplot

earthquake.usgs.gov/monitoring/operations/data/Seismic_Data/telemetry_data/RCBR_24hr.html

Originally posted by happykat39
Has anyone noticed the very high number of small quakes in Nevada?

There were 29 small quakes on the 20th alone, and they have continued at a slower but more than normal pace. It wasn't too far back that it was unusual to see more than a couple a month in Nevada. There were 4 more on the 21st and so far there are 2 more today with over 4 hours to go on the UTC day. There have also been several in Washington, Utah and Oregon as well. All in all they are way above average for the inland parts of the Pacific Northwest.

USGS SOURCE

edit on 22-1-2013 by happykat39 because: typo

I wonder if this volcano could be connected in any way??


www.volcanolive.com...

It is about 30 miles or so from all the epicenters of that little swarm......Heck, maybe this one, as well as long valley are all connected.

actually I saw the deleted one and this was the reason why I thought there will be a few 5+ ones. But after my post here it was deleted, so I am not sure anymore. But somehow when I saw this popping up on the map I had the feeling something is going on....

But seems like this was just a false alarm.

reply to post by radpetey


That is a possibility. Magma movement under or near the volcano could cause an earthquake swarm. Besides, this is a smaller of two swarms in that area. Several weeks back, uncertain of exact dates, there was a much larger swarm of similarly small quakes in another epicenter very close to this one.

I just found an archive and counted the small quakes in Nevada since 12/28/2012 and the total was 258. I have downloaded them to an Excel sheet and will tabulate them by date and post it after I have something for supper.

reply to post by happykat39


Hey HappyKat, I'd like to know what your take is on earthquakes and if they are rising in frequency. Puterman and the experts will tell us they are not and these swarms are normal. If you're a follower of the quakes, I'd like to know your opinion.

Originally posted by Rezlooper
reply to post by happykat39

 

Hey HappyKat, I'd like to know what your take is on earthquakes and if they are rising in frequency. Puterman and the experts will tell us they are not and these swarms are normal. If you're a follower of the quakes, I'd like to know your opinion.

I have been downloading the 7 day list data since mid December of 2010. I have it all in two Excel files as well as some of the data, such as the Japan tsunami quake and other earlier similar events broken out on separate pages. In used to post a color enhanced version of the daily quake list on another forum I no longer go to. So I am very familiar with the quake history.

Overall quake history has been up and down for that entire time. It has been pretty much swarm and quiet with no real long term increase in magnitude or quantity until recently. Now we are seeing a definite uptick in activity and a lot of it is in places that have previously had little or no activity.

There are also many more volcanoes waking up or increasing their activity. Go to Celestial Convergence and scroll down through the latest volcano reports and you will see what I mean. In fact both volcanic and associated seismic activity have increased dramatically in the last couple of days.

Check your U2U messages in a few minutes.

reply to post by happykat39


Thanks for the info

Magnitude: 3
DateTime: Wednesday January 23 2013, 04:16:20 UTC
Region: northern Texas
Depth: 16.1 km
Source: USGS Feed

Location 32.882°N, 96.980°W
Depth 16.1 km (10.0 miles)
Region NORTHERN TEXAS
Distances 7 km (4 miles) NNW of Irving, Texas
8 km (4 miles) SSE of Coppell, Texas
9 km (5 miles) WSW of Farmers Branch, Texas
10 km (6 miles) ENE of Euless, Texas
Location Uncertainty horizontal +/- 11 km (6.8 miles); depth +/- 5.8 km (3.6 miles)
Parameters NST= 17, Nph= 24, Dmin=240.5 km, Rmss=1.09 sec, Gp= 76°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=5
Source

Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)

Event ID usb000et4i

Magnitude: 5.1
DateTime: Wednesday January 23 2013, 04:29:38 UTC
Region: southern East Pacific Rise
Depth: 14.1 km
Source: USGS Feed

Event Time

2013-01-23 04:29:38 UTC
2013-01-22 21:29:38 UTC-07:00 at epicenter
2013-01-22 20:29:38 UTC-08:00 system time

Location

34.626°S 109.175°W depth=14.1km (8.8mi)
Nearby Cities

829km (515mi) S of Hanga Roa, Chile
3173km (1972mi) W of Ancud, Chile
3179km (1975mi) W of Chonchi, Chile
3181km (1977mi) W of Castro, Chile
2276km (1414mi) ESE of Adamstown, Pitcairn


earthquake.usgs.gov...

4.6 178km SSW of Samara, Costa Rica 2013-01-23 04:42:58 8.385°N 86.129°W 13.9

5.1 Southern East Pacific Rise 2013-01-23 04:29:38 34.626°S 109.175°W 14.1

4.8 22km ENE of Liaozhong, China 2013-01-23 04:18:18 41.556°N 122.983°E 10.1

Plate disturbance ???

4.8 22km ENE of Liaozhong, China 2013-01-23 04:18:18 41.556°N 122.983°E 10.1 is trending on chinese weibo (twitter). Will keep an eye out.

reply to post by wujotvowujotvowujotvo


There you are then. I said it was a false trigger from the Sumatra quake - but that does not explain the event that DID take place locally of which there seems to be no information.


The Australian data came through today with a time having 5 decimal places. This was completely unexpected and caused the import of Australian data to fail. I have fixed the QVSData program to take account of this. New version 1.5.59.2 is available from the link in my signature.

reply to post by happykat39

Overall quake history has been up and down for that entire time. It has been pretty much swarm and quiet with no real long term increase in magnitude or quantity until recently. Now we are seeing a definite uptick in activity and a lot of it is in places that have previously had little or no activity.

Please set out precisely where there is an uptick in activity in order to back up that statement, bearing in mind that it is quieter now than it has been even by comparison to last year. Please also show where activity is taking place where it has not done so before. I would be interested to know since I have obviously missed it.

There are also many more volcanoes waking up or increasing their activity. Go to Celestial Convergence and scroll down through the latest volcano reports and you will see what I mean. In fact both volcanic and associated seismic activity have increased dramatically in the last couple of days.

I found that to be an extremely sensationalist site that takes absolutely no account of the text of reports or researches into what it is reporting.

For example the three volcanoes erupting in Kamchatka which is presented as something new is not in fact something new and results from yet another somewhat sensationalist report on RT that I saw yesterday.

rt.com...

Shiveluch, Kizimen and Plosky have had ongoing eruptions - mainly lava flow, for some time now. If you look at my weekly geophysical report you will see that volcanic activity is NOT on the increase and is currently is NOT above average. Being ATS of course I don't actually expect anyone to believe that.

reply to post by PuterMan


You're right about one thing...I don't believe you!

reply to post by Rezlooper


You are of course entirely at liberty to ignore fact and believe as you wish. The good thing about it is that whatever you or anyone else believes, including myself, Mother Nature will continue doing her thing.

Just as a matter of interest here is another fact for you to ignore. This is the total approximate earthquake energy output of the planet for published Magnitude 5+ earthquakes by USGS on a rolling year basis, converted back to s single magnitude for the 12 months, which shows that the total is dropping. The jump in January is because the Mag 7 in January of last year was a 7.2 and this year was a 7.5 giving a step in the output, which then continues to drop.

If you look at the stats in my geophysical report the numbers are also dropping, but that is not scary enough for some so forget I just said that.

Originally posted by Rezlooper
reply to post by PuterMan

 

You're right about one thing...I don't believe you!

Well hate to break the news to you bud, but aside maybe from John Vidale or muzzy, personally PuterMan's input here I value probably the most at ATS. And when it comes to keeping up with total energy release, and statistical charts, I don't know that there is anyone else even doing such a thing. He knows his stuff, and keeps our fears in check... Heh, well he tries. Write him off at your own peril.

Originally posted by TrueAmerican

Originally posted by Rezlooper
reply to post by PuterMan

 

You're right about one thing...I don't believe you!

Well hate to break the news to you bud, but aside maybe from John Vidale or muzzy, personally PuterMan's input here I value probably the most at ATS. And when it comes to keeping up with total energy release, and statistical charts, I don't know that there is anyone else even doing such a thing. He knows his stuff, and keeps our fears in check... Heh, well he tries.

Write him off at your own peril.

I agree with you. I don't doubt that he know's his stuff and keeps some pretty good data, but I think he's downplaying that there is an increase in quakes. Just don't believe all is normal, but hey, I'm not an expert and that's just my opinion.

reply to post by Rezlooper


Well man, I mean, not to discount whatsoever your opinions, I promise- but we have pretty well sorted out long ago who knows what around here. Ask yourself. are you keeping up with statistical data as methodically and accurately as he is? Did you go back two months ago to find that magnitude reduction on one quake that was changed? I mean come on, at some point you have to trust someone with this stuff. He's not perfect, but as close as you're gonna get.