Quake Watch 2012

as deep and north to may 28, 6.7 mag.

Of note is that LDEO doesn't list that one. Skips it. But released a moment tensor(earthquake.usgs.gov/earthquakes/eqinthenews/2012/usb000a0z0/neic_b000a0z0_gcmt.php)

Many events happened to show a disconnect.

USGS missed CENTRAL MID-ATLANTIC RIDGE after it, as happens a lot.

What showed explicitly there's a different methodology about the page and tensors was Sumatra's double 8 mag quakes.

The page pinned the 2nd quake as upper 7 while moment tensor pinned as another 8.

my reply to TrueAmerican previously under xecoybh shortly before he realised himself the divergence on pg101

www.abovetopsecret.com/forum/thread789176/pg101

www.ldeo.columbia.edu/~ekstrom/Research/SWD/current/RADB_SWD_grd.html

2012 5 28 9 36 16.0 9.50 -40.50 33.0 5.2 CENTRAL MID-ATLANTIC RIDGE
2012 5 28 2 22 48.0 39.50 118.50 33.0 4.8 NORTHEASTERN CHINA

reply to post by mlirenr


I guess it is because LDEO is looking at the surface waves as opposed to the centroid tensors.

That last one totted up to 5.816 mb so using the conversion that is a bit over 6.0 Mw (6.0613)

At front page of www.globalcmt.org there's this snippet to a recent peer reviewed paper

Description of the CMT procedure

* recent article (2012) describing CMT processing procedures, results, and characteristics of the catalog through 2010

I'll upload the fulltext of the paywalled linked Elsevier ScienceDirect and reply in a new post or edit in this if still possible.

www.sciencedirect.com/science/article/pii/S0031920112000696

Physics of the Earth and Planetary Interiors

Volumes 200–201, June 2012, Pages 1–9

The global CMT project 2004–2010: Centroid-moment tensors for 13,017 earthquakes

* G. Ekström a,
* M. Nettles a,
* A.M. Dziewoński b

* a Lamont–Doherty Earth Observatory of Columbia University, Palisades, NY 10964, United States
* b Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, United States

* Received 20 December 2011. Revised 30 March 2012. Accepted 9 April 2012. Available online 18 April 2012. Edited by George Helffrich.

Abstract

Earthquake moment tensors reflecting seven years of global seismic activity (2004–2010) are presented. The results are the product of the global centroid-moment-tensor (GCMT) project, which maintains and extends a catalog of global seismic moment tensors beginning with earthquakes in 1976. Starting with earthquakes in 2004, the GCMT analysis takes advantage of advances in the mapping of propagation characteristics of intermediate-period surface waves, and includes these waves in the moment-tensor inversions. This modification of the CMT algorithm makes possible the globally uniform determination of moment tensors for earthquakes as small as MW = 5.0. For the period 2004–2010, 13,017 new centroid-moment tensors are reported.

Highlights

► Presents moment-tensor solutions for 13,017 earthquakes. ► Describes improvements in the CMT analysis. ► Provides exhaustive description of CMT procedures. ► Discusses the scalar moment of the 2004 Sumatra earthquake. ► Analyzes the completeness of the Global CMT catalog.

Keywords

* Global seismicity;
* Centroid-moment tensor;
* Earthquakes

reply to post by muzzy

I can't give you the USGS Top 10 for May, because they only have 8

9 surely, or have I got that wrong?

Date/Time UTC,Latitude,Longitude,Magnitude,Depth(Km),Location
2012-05-28 05:07:23, -28.061, -63.077, 6.7, 588.0, Santiago Del Estero. Argentina [Map]
2012-05-26 21:48:09, 26.875, 140.214, 6.0, 472.6, Bonin Isls. Japan Region [Map]
2012-05-24 22:47:46, 72.993, 5.651, 6.2, 8.8, Norwegian Sea [Map]
2012-05-23 15:02:28, 41.386, 142.083, 6.0, 71.4, Hokkaido. Japan Region [Map]
2012-05-20 07:20:37, 39.726, 143.037, 6.4, 15.6, Off E. Coast Of Honshu. Japan [Map]
2012-05-20 02:03:52, 44.799, 11.192, 6.0, 5.1, Northern Italy [Map]
↑ 2012-05-18 02:00:41, -44.594, -80.073, 6.3, 10.0, Off Coast Of Aisen. Chile [Map]
2012-05-14 10:00:39, -17.816, -69.749, 6.2, 98.3, Tarapaca. Chile [Map]
2012-05-01 22:43:37, 14.465, -92.908, 6.0, 36.3, Offshore Chiapas. Mexico [Map]

Source

reply to post by PuterMan

Yes you are right

I don't bother archiving any USGS below Mag 7, so just counted the list on the interactiverealtimeearthquakemapthingy set at 30 days and 6-10 mag. Of course it was June 2nd then so I missed that first one at Chiapas on May 1.

reply to post by mlirenr


fulltext, 790 KB pdf

jjjtir.files.wordpress.com/2012/06/1-s2-0-s0031920112000696-main.pdf

reply to post by muzzy


Muzzy, is this the summary poster page you were searching for, regarding the Italian quakes?

For dial-up users, the PDF link on the above page is 7.54 MB. But it is a pretty, 36 x 24 inch poster.

reply to post by mlirenr

Many thanks for sharing this document. Some excellent graphs, maps and statistical analyses and well worth the time to read through it. Good resource material!

Best regards,

Mike

Magnitude 6.6 - South Of Panama

L ocation in Google Maps

• Date-Time: Monday, June 04, 2012 @ 00:45:13 UTC
  
• Earthquake location: 5.126°N, 82.833°W,
  
• Earthquake depth: 10.0 km
  
• Distances:
  324km (201mi) S of Punta de Burica, Panama
  352km (218mi) S of Puerto Armuelles, Panama
  363km (225mi) S of Pedregal, Panama
  370km (229mi) S of David, Panama
  552km (342mi) SSE of San Jose, Costa Rica
  
• Event ID: pt12156000
  

Derived from Event Data Source: USGS
Powered by QVSData

There was an earlier quake today and a deep quake in Bolivia not far from these

Prov,Date/Time UTC,Latitude,Longitude,Magnitude,Depth(Km),Location
usgs,2012-06-04 00:45:13, 5.126, -82.833, 6.6, 10.0, South Of Panama
usgs,2012-06-03 11:54:31, 3.387, -82.826, 4.7, 10.5, South Of Panama
usgs,2012-06-03 11:39:23, -21.406, -68.073, 5.0, 99.0, Potosi. Bolivia

Nazca Plate doing a bit of a jig.





EMSC have come in at 5.9 Mw

Magnitude 5.9 - South Of Panama

Location map by EMSC (Google Map)

• Date-Time: Monday, June 04, 2012 @ 00:45:20 UTC
  
• Earthquake location: 5.832°N, 82.648°W,
  
• Earthquake depth: 10.0 km
  
• Distances:
  729 km W Cali (pop 2,392,877 ; local time 19:45:20.2 2012-06-03)
  482 km S San josé (pop 335,007 ; local time 18:45:20.2 2012-06-03)
  273 km S Puerto armuelles (pop 18,795 ; local time 19:45:20.2 2012-06-03)
  
• Event ID: 271621
  

Derived from Event Data Source: EMSC
Powered by QVSData

Here we go again!




GFZ Potsdam have 6.0 Mw

There is no phase data on USGS yet. Their information can from the Alaskan Tsnuami warning centre and was confirmed by the Pacific Tsunami warning centre.

reply to post by Olivine


Thats the one
I guess it takes a bit of time to gather up all the info. I like those though..
I backtracke on the adress and found the list of pdf's agian, I see they di one for the first quake 6.0 marked 20052012 hazards.cr.usgs.gov...

The M7.2 December 28, 1908 Messina earthquake is the deadliest documented European earthquake. The combination of severe ground shaking and a local tsunami caused an estimated 60,000 to 120,000 fatalities

note to self "get on with that MWEProject" I've only gone back to 1910

A 6.6 magnitude earthquake struck off the Pacific Coast of Panama near David, U.S. Geological Survey reports.

reply to post by kennvideo


It got reduced to 6.2 which is supposed is par for the course with USGS these days.

TA were you watching it? What did you think?

reply to post by PuterMan


ahhhhh,, Nazca such an interesting place when viewed from the air.
supposed they will find anymore " newly made " gliffs

curious place

reminds me of the rolling rock desert

reply to post by PuterMan


Yep, saw it come in, and could have reported, but knew it wasn't a super whammy- so didn't bother rushing the news. 200 microns/sec and 1.2e+6 counts at II.JTS in Costa Rica, and propagation strong to Central and South America stations. S-Waves seen in TN and beyond. I thought it was at least a 6.0. But the 4.7 earlier on the plate line is now arguably a foreshock, and the lack of aftershocks so far on the 6+ might mean the fault is not done yet in this case. Dunno, we'll see.

reply to post by TrueAmerican


We have another 6.2 value from GeoAzur so that is 2 @ 6.2, 1 @ 6.0 but EMSC are still hanging out @ 5.9 Mw but it usually is morning time before they make a change to anything.

Strasbourg do not operate at night - too much else to do.

Ha ha they moved it

The EMSC seat was moved to the Laboratoire de Détection et de Géophysique (LDG) of the Commissariat à l'Energie Atomique (CEA) in Bruyères-le-Châtel (Essonne, France).

www.emsc-csem.org...

That was in 1993 so I am just a tad behind the times!

Originally posted by PuterMan
We have another 6.2 value from GeoAzur so that is 2 @ 6.2, 1 @ 6.0 but EMSC are still hanging out @ 5.9 Mw but it usually is morning time before they make a change to anything.

Fine, let's call it a 6.1 Mw and be done with it.

But I'm still a watchin in case this zone decides to unzip. Central America has been in the sights of a few seismologists as possibly being due for a bigger one, and that might have been it.

And EDIT: Update, small after shock just hit.

EDIT2: Another bigger aftershock just now/ They calling that a 6.6? No way...80 microns/sec at JTS and look where they have it postioned....nearly same spot as 6.1... That'll drop in mag, for sure.
earthquake.usgs.gov...

I see your 6.2 , raise you a 6.6
6.6, 2012/06/04 03:15:25, 5.508, -82.468, 9.7, SOUTH OF PANAMA

So a 6.6, downgraded to a 6.2, and then 3 hours later or so, an actual 6.6 strikes.

Eyes on that area.

Originally posted by BobAthome
reply to post by PuterMan

 

ahhhhh,,

Nazca such an interesting place when viewed from the air.

supposed they will find anymore " newly made " gliffs

curious place

reminds me of the rolling rock desert

ohh goody,, can i see the pics

speaking of which,,,,never mind.

Nazca Lines monkeyman

luv it.
Nazca legends and stuff,,,
opps sorry.