Quake Watch 2012

reply to post by lke123


Quick link to share?

I'm seeing some twitter feeds saying 6.4 in Mexico City...

reply to post by NiteNGale2

Magnitude mb 5.7
Region ESTADO DE MEXICO, MEXICO
Date time 2012-11-15 09:20:26.0 UTC
Location 18.72 N ; 100.27 W
Depth 80 km
Distances 143 km SW Mexico city (pop 8,657,050 ; local time 03:20:26.9 2012-11-15)
86 km NW Iguala (pop 112,106 ; local time 03:20:26.9 2012-11-15)
24 km SW Tejupilco (pop 25,036 ; local time 03:20:26.9 2012-11-15)

EMSC

USGS still does not have it listed as of this tmie

Parameter Value Uncertainty
Magnitude 6.0 Mwb ± 0.06
Location 18.407°N, 100.373°W ± 11.8 km
Depth 60.9 km ± 7.9 km
Number of Stations Used 518
Number of Phases Used 540
Minimum Distance 162.5 km (1.46°)
Travel Time Residual 1.20 sec
Azimuthal Gap 40°
Review Status REVIEWED
Event ID usc000dsyl

USGS listing

reply to post by jadedANDcynical


USGS no, but Potsdam have it as 6.2

Prov,Date/Time UTC,Latitude,Longitude,Magnitude,Depth(Km),Location
gfzp,2012-11-15 09:20:16, 18.390, -100.560, 6.2, 10.0, Guerrero. Mexico
emsc,2012-11-15 09:20:27, 18.757, -100.275, 5.6, 80.0, Estado De Mexico Mexico

They just all went back to 6

Prov,Date/Time UTC,Latitude,Longitude,Magnitude,Depth(Km),Location
gfzp,2012-11-15 09:20:16, 18.390, -100.560, 6.2, 10.0, Guerrero. Mexico
usgs,2012-11-15 09:20:23, 18.406, -100.373, 6.0, 60.9, Guerrero. Mexico
emsc,2012-11-15 09:20:23, 18.477, -100.295, 6.0, 60.0, Estado De Mexico Mexico

UMN - Mexico City ~163 km from epicentre


KVTX - Texas ~1043 km from epicentre


And here is the sound file (100x speed) (FLAC format 92Kb)

6.0 earthquake, 9km E of Tlalchapa, Mexico. Nov 15 02:20 at epicenter (depth 61km)

2012-11-15 09:20:23 UTC
2012-11-15 02:20:23 UTC-07:00 at epicenter
2012-11-15 04:20:23 UTC-05:00 system time
Location
18.407°N 100.373°W depth=60.9km (37.8mi)

Nearby Cities
9km (6mi) E of Tlalchapa, Mexico
17km (11mi) NW of Arcelia, Mexico
30km (19mi) ENE of Ciudad Altamirano, Mexico
55km (34mi) W of Teloloapan, Mexico
173km (107mi) SW of Mexico City, Mexico

5.6 earthquake, 104km SSW of Attu Station, Alaska. Nov 15 22:22 at epicenter (depth 32km).

2012-11-15 11:22:16 UTC
2012-11-15 22:22:16 UTC+11:00 at epicenter
2012-11-15 06:22:16 UTC-05:00 system time
Location
52.018°N 172.470°E depth=32.0km (19.9mi)

Nearby Cities
104km (65mi) SSW of Attu Station, Alaska
943km (586mi) E of Petropavlovsk-Kamchatskiy, Russia
959km (596mi) E of Vilyuchinsk, Russia
961km (597mi) E of Yelizovo, Russia
3157km (1962mi) NE of Tokyo, Japan

reply to post by kennvideo


Or 5.8 mb if you go with EMSC, which is ~Mw 6.0

www.emsc-csem.org...

I was quite ready to say I was a silly billy and I was ready to admit nothing happened. Well, nothing "weird" happened. I noticed the quake in Mexico. Oh, I'm sure that it was normal and nothing to note. Unlike the two large groups of geese that are manouvering in a territorial war. I'm sure that Mexican quake was probably in the region of the 7.?M whatever, in Oaxaca. It must be an "aftershock". No. It's many kilometers away and I doubt it was an aftershock. These quakes. (the ongoing series that's playing out in my imagination) These quakes along the spine have been all along the spine. Starting with the latest big one in Alaska, we have gone down to the toes, and now were heading back north and have visited Mexico at midriff.

I was hesitant to post but after reading Eric's posts, what the hell.

It's too quiet. WAY too quiet in California and the west coast. Nothing 2.5 or higher for over 24 hours now. Not typical behavior for Cali and the west coast.

reply to post by UtahRosebud


THIS IS NOT A CRITICISM OF YOUR COMMENT

First numbers (which does not take account of magnitudes)

California, Washington and Oregon (Quakes containing those names)

Washington and Oregon (Quakes containing those names)

California (Quakes containing that name)


Now energy, which does take account of magnitude. (All in jigglyjules)

California, Washington and Oregon (Quakes containing those names)

Washington and Oregon (Quakes containing those names)

California (Quakes containing that name)


Yes it is quiet at present, but nothing out of the ordinary?

Looking at the actual magnitudes flying about, the graph comes out with a completely flat linear trend (black) that unusually is match by the polynomial trend (red) which does show a very slight down turn at the end. This means that over 30days at least there is no change in the average magnitudes across that area.



As always it is a matter of perceptions against the figures and I am just as easily taken in by perceptions as well.


Just checking the last 24 hrs for California only, yes there is nothing above Mag 2.5 - but the tend is upwards for that short time frame.

reply to post by ericblair4891


I feel ya bro!!! It is only a matter of time before Cascadia blows. I do not know if it will be a 9.0 or not, but I have had this feeling for a year now.

I know feelings are about as reliable as FEMA, the morning after a juicy national disaster

Just sayin'

reply to post by UtahRosebud


This is the second time this has happened in as many weeks!!

Go figure!

reply to post by radpetey


And this is the number of times it has happened for California over the past years

Date/Time Max Magnitude
2009-01-02 2.1000
2009-01-03 2.5000
2009-01-08 2.5000
2009-01-13 2.5000
2009-01-26 2.5000
2009-02-02 1.9000
2009-02-25 2.3000
2009-02-28 2.5000
2009-03-07 2.5000
2009-03-11 2.5000
2009-03-17 2.4000
2009-03-20 2.5000
2009-03-28 2.4000
2009-03-29 2.5000
2009-04-13 2.5000
2009-04-18 2.4000
2009-04-20 2.4000
2009-05-04 2.5000
2009-05-07 2.4000
2009-05-17 2.2000
2009-05-28 2.5000
2009-05-30 2.5000
2009-06-23 2.4000
2009-07-02 2.3000
2009-07-06 2.3000
2009-07-10 2.4000
2009-07-18 2.5000
2009-07-19 2.5000
2009-07-22 2.4000
2009-08-02 2.5000
2009-08-04 2.1000
2009-08-09 2.5000
2009-08-10 2.5000
2009-08-17 2.3000
2009-08-24 2.5000
2009-08-25 2.3000
2009-09-03 2.4000
2009-09-11 2.4000
2009-09-27 2.5000
2009-11-05 2.5000
2009-11-07 2.5000
2009-11-10 2.4000
2009-12-12 2.5000
2009-12-16 2.3000
2009-12-25 2.2000
2010-01-19 2.5000
2010-01-21 2.2000
2010-03-30 2.3000
2010-04-01 2.4000
2010-09-10 2.4000
2010-11-29 2.5000
2010-12-27 2.5000
2011-02-10 2.5000
2011-02-27 2.5000
2011-02-28 2.3000
2011-04-04 2.2000
2011-04-25 2.5000
2011-05-16 2.5000
2011-06-21 2.5000
2011-07-01 2.5000
2011-07-05 2.5000
2011-07-08 2.3000
2011-07-30 2.4000
2011-08-08 2.5000
2011-08-11 2.5000
2011-08-13 2.4000
2011-08-19 2.1000
2011-08-22 2.4000
2011-08-23 2.5000
2011-09-19 2.5000
2011-10-02 2.3000
2011-10-03 2.3000
2011-10-12 2.4000
2011-10-18 2.3000
2011-10-29 2.5000
2011-11-10 2.4000
2011-12-07 2.1000
2011-12-13 2.5000
2011-12-14 2.4000
2011-12-15 2.4000
2011-12-16 2.4000
2011-12-25 2.3000
2012-01-01 2.4000
2012-01-09 2.5000
2012-01-10 2.5000
2012-01-12 2.3000
2012-01-23 2.5000
2012-02-21 2.2000
2012-02-24 2.4000
2012-03-13 2.4000
2012-03-20 2.3000
2012-03-23 2.3000
2012-03-25 2.4000
2012-04-02 2.5000
2012-05-26 2.5000
2012-06-01 2.4000
2012-06-18 2.5000
2012-06-21 2.4000
2012-07-14 2.5000
2012-07-17 2.3000
2012-07-29 2.5000
2012-08-05 2.1000
2012-08-23 2.5000
2012-09-09 2.5000
2012-09-13 2.4000
2012-09-19 2.5000
2012-09-21 2.2000
2012-10-01 2.5000
2012-10-07 2.4000
2012-10-16 2.5000
2012-10-17 2.5000
2012-10-18 2.3000
2012-10-22 2.4000
2012-10-26 2.5000
2012-11-05 2.4000
2012-11-14 2.3000

As you say, go figure.

Earthquake Details

This event has been reviewed by a seismologist.
Magnitude
6.8
Date-Time
Friday, November 16, 2012 at 18:12:37 UTC
Saturday, November 17, 2012 at 05:12:37 AM at epicenter
Location
49.291°N, 155.445°E
Depth
4.9 km (3.0 miles) (poorly constrained)
Region
KURIL ISLANDS
Distances
162 km (101 miles) SSW (198°) from Severo-Kuril'sk, Kuril Islands, Russia
471 km (292 miles) SSW (210°) from Petropavlovsk-Kamchatskiy, Russia
1980 km (1230 miles) NE (35°) from TOKYO, Japan
Location Uncertainty
horizontal +/- 15.1 km (9.4 miles); depth +/- 6.7 km (4.2 miles)

Source

reply to post by lurksoften




PET is about 470 km from the epicentre. I am not sure about this being 6.8. We shall see.


GFZ Potsdam Mag 6.4 Mw

Latest guesstimates

Prov,Date/Time UTC,Latitude,Longitude,Magnitude,Depth(Km),Location
gfzp,2012-11-16 18:12:43, 49.260, 155.580, 6.4, 49.0, Kuril Isls.
usgs,2012-11-16 18:12:37, 49.290, 155.444, 6.8, 4.9, Kuril Isls.
emsc,2012-11-16 18:12:36, 49.355, 155.437, 6.6, 5.0, Kuril Isls.

Been a few 6's in the last week eh
heres the interactive aftershocks map for the 11-11-2012 Thabeikkyin, Burma 6.6 at 95 hours (4days)
as expected there have been some smaller ones now, but not that many compared to what you might get if it had been in Japan say.
mag2= 0
mag3= 4
mag4= 9
mag5= 7
mag6= 1 = 119,786.624TTNT energy released
Total energy released = 135,364.956TTNT



data by Seismological Bureau, Thai Meteorological Department ©

Is it just me or does this sound like it could be 2 quakes

IU_PET_BHZ_100xSpeed

reply to post by PuterMan


Puterman, What program can I use to open your sound file?

Nevermind, I figured out. Going to listen now, brb...

reply to post by Olivine


WinAmp plays flac files

Download - it is free

reply to post by PuterMan


I like your Mother Earth title, hehe, so appropriate.

It definitely sounds like 2 fractures to me--unless it is some sort of "echo" due to the distance from the seismometer. I get the impression that the 1st quakes movement, immediately relieved pressure/changed the local strain, allowing the 2nd quake. Similar to stacked charges while blasting: the shallower charge blows 1st, relieving the overburden so the 2nd, deeper charge can more fully blast the surrounding rock.

Really cool, though. I love listening to these. I have it looping.
Have you every thought of making a "song" out of a days' worth of earthquakes? April 11-12 of this year would boom.
Oooh, or a "compilation" album--each seismic region could have it's top 20 quakes sped up into a song.


Sorry for my loopiness--too much caffeine I suspect.

reply to post by Olivine


I have thought about it, but turning them into a song would be difficult. USGS have a few but they are not songs.

I have not given up on the idea but I would have to start collecting every event - which I am now trying to do for Mag 6+

I get the impression that the 1st quakes movement, immediately relieved pressure/changed the local strain, allowing the 2nd quake.

Yes my thoughts and there is some evidence of this in the shape of the S wave. There does seems to be some variance in the wave. I will dig out the waveform and try and explain what I mean.

In the meantime here is the spectrogram. You don't usually see two sharp peaks like that from one event.



Here is an earlier one from somewhere






Spectrograms in these ones (scroll down to them)
Magnitude 6.0 Guerrero. Mexico 15-Nov-12 (c000dsyl)

This one you do see the S wave but it is not a clearly defined as in the Kuril quake.
Magnitude 6.1 Coquimbo. Chile 14-Nov-12 (c000dski)

Maybe it is a feature of the distance from the epicentre?