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7.9mag quake off Costa Rica (update: USGS drops estimate to 7.6 mag)

Tsunami Watch has been called.  Here’s the USGS data.

Magnitude 7.9 (Preliminary magnitude — update expected within 15 minutes)
  • Wednesday, September 05, 2012 at 14:42:09 UTC
  • Wednesday, September 05, 2012 at 08:42:09 AM at epicenter
Location 9.931°N, 85.462°W
Depth 20 km (12.4 miles) set by location program
  • 80 km (50 miles) S (180°) from Liberia, Costa Rica
  • 151 km (94 miles) SSW (209°) from San Carlos, Nicaragua
  • 153 km (95 miles) W (268°) from SAN JOSE, Costa Rica
Location Uncertainty Error estimate not available
Parameters NST= 38, Nph= 38, Dmin=148.1 km, Rmss=1.42 sec, Gp= 94°,
M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=1
Event ID at00m9vsu9

Here’s the USGS map

Hope everyone’s ok over there as on a scale of 1 to not-funny, a 7.9quake is classed as very not funny.

UPDATE: The USGS has just dropped its estimate to 7.6 mag for the quake, which is still more then enough to frighten the veritable crap out of you if you were close. Location is just off the Nicoya Peninsula. Reports from those in the area (mostly San José at 100 miles from the centre) are that it was a very long-lasting quake. As for damage, too early to get a full picture but reports of a church spire down, broken objects in homes, power failures, etc. Early days on that, though. 

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