Large Quake Off Coast Of El Salvador. Local tsunami warning issued!

Cali's been shaking, but this 7.4 just hit about 40 miles offshore from El Salvador and about 100 miles south and offshore from the capital of San Salvador.

No word yet on any tsunami or damage. It's about 40 miles deep.

Earthquake Details

This event has been reviewed by a seismologist.

Magnitude 7.4
Date-Time

Monday, August 27, 2012 at 04:37:23 UTC
Sunday, August 26, 2012 at 10:37:23 PM at epicenter

Location 12.279°N, 88.530°W
Depth 52.9 km (32.9 miles)
Region OFFSHORE EL SALVADOR
Distances

118 km (74 miles) S (185°) from Usulután, Usulután, El Salvador
138 km (86 miles) SSW (196°) from San Miguel, San Miguel, El Salvador
139 km (86 miles) SSW (212°) from La Unión, La Unión, El Salvador
169 km (105 miles) SSE (156°) from SAN SALVADOR, El Salvador

Location Uncertainty horizontal +/- 16.5 km (10.3 miles); depth +/- 8.8 km (5.5 miles)
Parameters NST=362, Nph=362, Dmin=130.2 km, Rmss=1.02 sec, Gp=115°,
M-type=regional moment magnitude (Mw), Version=8
Source

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

Event ID usc000c7yw

Pretty deep quake, usually the shallow ones (20 miles or less) are the ones that really cause destruction. Hopefully everyone's okay!

hope this doesn't make a Tsunami..

reply to post by muse7


This actually isn't all that deep. Quakes are commonly felt hundreds of miles down. This was just a little more than 50 miles down. And remember...the people who live in this area often live in inadequate structures.

Similar quakes in the same area have caused widespread damage. Often from either tsunami's or landslides.

Tsunami Warning issues for Central America Pacific Coast...

ptwc.weather.gov...

Yeah...seeing the tsunami warnings now.

This page has some pretty good info on historical data for quakes in the area and their outcomes. From little damage to massive loss of live from secondary events.

reply to post by webpirate


The 2 columns on the end represent initial deaths, and total deaths including secondary and primary means.

**30 6.5 Nicaragua 12.168, -88.34, 26km1995-06-14 11:11:49 VI (561,350) 0 0

**40 6.7 Nicaragua 11.706, -87.998, 12km1998-08-23 13:57:11 VI (650,155) 0 0


**47 7.7 San Miguel, El Salvador 13.07, -88.7, 38km2001-01-13 17:33:31 IX (655,194) 267 852 Landslide

And the quakes I selected are a couple as indicated on the map close to the same area. Obviously the third one with all of the deaths was the closest in size to the current one.

I posted this on the other thread about the quake


ISSUED AT 0458Z 27 AUG 2012

THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC
OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA...
WASHINGTON...OREGON AND CALIFORNIA.

THIS EARTHQUAKE APPEARS TO BE A SLOW EARTHQUAKE WITH ADDITIONAL
TSUNAMI POTENTIAL. THEREFORE A WARNING IS BEING ISSUED.

... A TSUNAMI WARNING IS IN EFFECT ...

A TSUNAMI WARNING IS IN EFFECT FOR

COSTA RICA / NICARAGUA / EL SALVADOR / HONDURAS / GUATEMALA /
PANAMA / MEXICO

FOR ALL OTHER AREAS COVERED BY THIS BULLETIN... IT IS FOR
INFORMATION ONLY AT THIS TIME.

THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY
NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE
DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND
ANY ACTIONS TO BE TAKEN IN RESPONSE.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 0437Z 27 AUG 2012
COORDINATES - 12.7 NORTH 88.5 WEST
DEPTH - 54 KM
LOCATION - OFF COAST OF CENTRAL AMERICA
MAGNITUDE - 7.3

EVALUATION

IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED. THIS WARNING IS
BASED ONLY ON THE EARTHQUAKE EVALUATION. AN EARTHQUAKE OF THIS
SIZE HAS THE POTENTIAL TO GENERATE A DESTRUCTIVE TSUNAMI THAT CAN
STRIKE COASTLINES IN THE REGION NEAR THE EPICENTER WITHIN MINUTES
TO HOURS. AUTHORITIES IN THE REGION SHOULD TAKE APPROPRIATE
ACTION IN RESPONSE TO THIS POSSIBILITY. THIS CENTER WILL MONITOR
SEA LEVEL GAUGES NEAREST THE REGION AND REPORT IF ANY TSUNAMI
WAVE ACTIVITY IS OBSERVED. THE WARNING WILL NOT EXPAND TO OTHER
AREAS OF THE PACIFIC UNLESS ADDITIONAL DATA ARE RECEIVED TO
WARRANT SUCH AN EXPANSION.

Just saw another
5.2 in Mexico

Trying to find out if my parents felt it in Cartago Costa Rica. So far I haven't heard anything from them. It's midnight there anyway, probably slept through it........I hope

5.4 right on top the other 7.4 in El Salvador right now.

Even though this thread was first, the second thread here gathered more replies before the staff was notified.

Please add your thoughts here.

Thread closed.