Quake Watch 2010

Magnitude 4.5 - SONORA, MEXICO 2010 March 30 09:14:18 UTC

Tuesday, March 30, 2010 at 09:14:18 UTC
Tuesday, March 30, 2010 at 02:14:18 AM at epicenter
Location
31.675°N, 113.534°W
Depth
10 km (6.2 miles) set by location program
Region
SONORA, MEXICO
Distances
39 km (24 miles) N (359°) from Puerto Peñasco, Sonora, Mexico
100 km (62 miles) SW (219°) from Ajo, AZ
120 km (75 miles) SSE (160°) from Tacna, AZ
146 km (91 miles) SE (126°) from San Luis Río Colorado, Sonora, Mexico
342 km (212 miles) ESE (105°) from Tijuana, Baja California, Mexico

Kazakhstan - 4.4

Magnitude: 4.4
Mercalli scale: 3
Date-Time [UTC]: 30 March, 2010 at 11:36:22 UTC
Local Date/Time: Tuesday, March 30, 2010 at 11:36 in the moorning at epicenter
Location: 45° 46.800, 81° 46.800
Depth: 1 km (0.62 miles)
Region: Asia
Country: Kazakstan
Distances: 80.28 km (49.88 miles) S of Dostyq, Almatinskaya Oblast'
Source: RSOE-EMSC

[edit on 30/3/10 by sandri_90]

Magnitude 2.9 - COLORADO 2010 March 30 12:56:59 UTC

Tuesday, March 30, 2010 at 12:56:59 UTC
Tuesday, March 30, 2010 at 06:56:59 AM at epicenter

Location
39.751°N, 107.358°W

Depth
5 km (3.1 miles) set by location program

Distances
24 km (15 miles) N (354°) from Glenwood Springs, CO
25 km (16 miles) NE (37°) from New Castle, CO
34 km (21 miles) NE (48°) from Silt, CO
192 km (119 miles) W (268°) from Arvada, CO
205 km (127 miles) W (272°) from Denver, CO

Hi earthquakers, I have a question about the amount of earthquakes on the USGS map.

The map shows earthquake activity in the past week, right up to the last hour, and Iv`e been looking at it everyday pretty much since the Haiti earthquake, and it appears that there is usually around 260-290 (ish) quakes at any one time on the map.

Now, Iv`e noticed this number dropping to 169 (today at 17:11 UTC).
I started noticing this drop a few days ago, and it has steadily decreased.

My question is, is this a known phenomenon, i,e after a couple of biggies and their respective aftershocks, do the number of quakes fall once everything has calmed, or could this possibly be a "calm before the storm" type of thing, like, could the fall in numbers indicate a possible big quake coming soon?

Forgive my tectonic ignorance if this is a silly question, it`s just a question that came to me as I noticed the quakes depleting in number recently.


Thanks in advance,

Namaste

ETA USGS link
USGS

[edit on 30-3-2010 by psilo simon]

Earthquake Details
Magnitude 6.9 (Preliminary magnitude — update expected within 15 minutes)
Magnitude 6.4

Date-Time Tuesday, March 30, 2010 at 16:54:46 UTC
Tuesday, March 30, 2010 at 10:24:46 PM at epicenter

Location 13.650°N, 92.800°E
Depth 46 km (28.6 miles) set by location program
Region ANDAMAN ISLANDS, INDIA REGION
Distances 221 km (137 miles) N (2°) from Port Blair, Andaman Islands, India
405 km (252 miles) SSW (211°) from Pathein (Bassein), Myanmar
502 km (312 miles) SW (226°) from YANGON (Rangoon), Myanmar

Location Uncertainty Error estimate not available
Parameters NST= 11, Nph= 11, Dmin=0 km, Rmss=0.62 sec, Gp=162°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=A
Source NOAA Pacific Tsunami Warning Center

Event ID pt10089001

This event has been reviewed by a seismologist.


edited for updated Magnitude - 6.4

[edit on 30-3-2010 by Casing]

A DESTRUCTIVE WIDESPREAD TSUNAMI THREAT DOES NOT EXIST BASED ON
HISTORICAL EARTHQUAKE AND TSUNAMI DATA.

HOWEVER - THERE IS A VERY SMALL POSSIBILITY OF A LOCAL TSUNAMI
THAT COULD AFFECT COASTS LOCATED USUALLY NO MORE THAN A HUNDRED
KILOMETERS FROM THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE
REGION NEAR THE EPICENTER SHOULD BE MADE AWARE OF THIS
POSSIBILITY

reply to post by Casing


A little too close for comfort, me being in Phuket an all.

There goes my sleep for the time being....

RSOE EDIS

Prepared Citizens - Prepared Communities
About
Preliminary Earthquake Report
Notice! This is a computer-generated report - this event has not reviewed by a seismologist!
EDIS Number: EQ-20100330-171247-IN Common Alerting Protocol
Magnitude: 6.4
Mercalli scale: 7
Date-Time [UTC]: 30 March, 2010 at 16:54:48 UTC
Local Date/Time: Tuesday, March 30, 2010 at 16:54 in the afternoon at epicenter
Location: 13° 32.400, 92° 42.600
Depth: 40 km (24.85 miles)
Region: Asia
Country: India
Distances: 204.6 km (127.13 miles) E of Bamboo Flat, Union Territory of Andaman and Nicobar Islands
Source: RSOE-EMSC
Generated Tsunami: Not or no data!
Damage: Not or not data!

Edit: not an aftershock but an update.

[edit on 30-3-2010 by FermiFlux]

Did Melbourne Australia just experience a magnitude 3 earth tremor??

reply to post by who-me?


sorry to be the bearer of bad news, but forwarned is forarmed (or some such saying...)

Stay safe!

Casing

Has anyone checked SOHO today?
Here's the link....
sohodata.nascom.nasa.gov...

Gday all,last night Melbourne Aus 3.0 mag in port phillip bay.
This type of activity seems to be increasing.
Cheers all.

Earthquake Details
Magnitude 3.0
Date-Time Tuesday, March 30, 2010 at 20:42:18 UTC
Tuesday, March 30, 2010 at 04:42:18 PM at epicenter

Location 44.672°N, 68.752°W
Depth 4.4 km (2.7 miles)
Region MAINE
Distances 9 km (5 miles) ENE (65°) from Winterport, ME
11 km (7 miles) NNE (18°) from Bucksport, ME
11 km (7 miles) SE (146°) from Hampden, ME
16 km (10 miles) S (171°) from Bangor, ME
286 km (178 miles) NE (48°) from Manchester, NH
307 km (190 miles) SE (140°) from Québec, Québec, Canada

Location Uncertainty horizontal +/- 0.7 km (0.4 miles); depth +/- 1.7 km (1.1 miles)
Parameters NST= 17, Nph= 33, Dmin=26.7 km, Rmss=0.23 sec, Gp=155°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=a
Source New England Seismic Network (NESN):
Weston Observatory of Boston College

Event ID ne00001168

This event has been reviewed by a seismologist.






Earthquake Details
Magnitude 1.1
Date-Time Tuesday, March 30, 2010 at 21:01:28 UTC
Tuesday, March 30, 2010 at 05:01:28 PM at epicenter

Location 44.726°N, 68.701°W
Depth 5 km (3.1 miles) (poorly constrained)
Region MAINE
Distances 8 km (5 miles) SSE (148°) from Brewer, ME
11 km (6 miles) ESE (107°) from Hampden, ME
11 km (7 miles) SE (146°) from Bangor, ME
293 km (182 miles) NE (48°) from Manchester, NH
304 km (189 miles) SE (139°) from Québec, Québec, Canada

Location Uncertainty horizontal +/- 5 km (3.1 miles); depth +/- 31 km (19.3 miles)
Parameters NST= 3, Nph= 6, Dmin=75.8 km, Rmss=0.35 sec, Gp=230°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=a
Source New England Seismic Network (NESN):
Weston Observatory of Boston College

Event ID ne00001169

This event has been reviewed by a seismologist.

reply to post by FermiFlux


This seems to be a 6.6 in USGS data. Take a look in Google Earth. There is now a ring of earthquakes all the way around that plate all over 4.8

Seems to extend into China as well.




[edit on 30/3/2010 by PuterMan]

reply to post by Anmarie96


No worries, they will calm down and behave eventually one hopes, and thank you, it was red for me too, but I noticed it changed to blue rather quick, so not your fault, they just didn't see it change so quick is all, and sorry i didn't get back to you right away, had to step away for a bit, happy earthquake hunting...

reply to post by PuterMan


heck all this time, we've been wondering whether Cali would slide in to the ocean, wouldn't it be just our luck it would be China instead, not serious, but hey, then where would get "Volvo's"???

Originally posted by Anmarie96
reply to post by freetree64

 

Great Spot

- Maybe I missed the Red, I don't think so though - some people make me want to chew nails!!!

Red? Blue? What are you guys on about?

By the way has anyone found any readable seismographs for Italy yet. I am getting really curious about that one. Sorry that should be machine readable, i.e. data downloadable.

[edit on 30/3/2010 by PuterMan]

reply to post by PuterMan


Puterman, do you mean to tell me all this time when we talk color - you don't know what we are talking about? - I don't quiet believe it but, if so WOW - Oh goody - I can teach you something Yeah, me Here's the link - look at the legend.

Oh, and mr/ms happiness and joy tryed to bite my head off in yellowstone - it was a further conversation to that.

[edit on 30-3-2010 by Anmarie96]

[edit on 30-3-2010 by Anmarie96]

Originally posted by MoorfNZ
Puterman - came across this free book (download) and thought of you:

"Fault-Zone Properties and Earthquake Rupture Dynamics, Volume 94 (International Geophysics)" (2009)

www.freebookspot.in...

My most sincere apologies. I completely missed that last part of page 52 - the penalty of using pglastpage as a bookmark. Many thanks for that. I have downloaded and will be reading tomorrow.

My thanks also to SWMBO for pointing out my error of omission.

reply to post by Anmarie96

Yes, you did teach me something - I never look at that page. Perhaps I should. I use the RSS feed from USGS and eQuake normally.

[edit on 30/3/2010 by PuterMan]

"Strong earthquake hits Andaman Islands, India"
2010-03-31 10:57 BJT

english.cctv.com...

"HONG KONG, March 31 (Xinhua) -- An earthquake measuring 6.4 on the Richter scale hits Andaman Islands, India region early Wednesday, according to a release by the Hong Kong Observatory.

The quake, which occurred at 1:00 a.m. HK time (1700 GMT), was initially determined to be near Andaman Islands, India region, 13. 6 degrees North latitude and 92.9 degrees East longitude, about 210 kilometers north of Port Blair, India."