Massive earthquake magnitude 7.3 struck offshore El Salvador
Massive M7.3 earthquake struck offshore El Salvador on August 27, 2012 at 04:37:23 UTC. The epicenter was located 118 km (74 miles) S from Usulután, 138 km (86 miles) SSW from San Miguel and 169 km (105 miles) SSE from capital San Salvador (12.279°N, 88.530°W). The depth of epicenter was 52.9 km (32.9 miles).
USGS reports a M7.4 at depth of 53 km, Geofon reports a
USGS first reported magnitude 7.4 then later downgraded to 7.3. Biggest difference after evaluation was depth where they changed it from 52.9 km to 20.3 km (12.6 miles).
At 05:01 UTC aftershock with recorded magnitude of 4.6 and depth of 19.9 km was reported by USGS. At 05:38 UTC another strong aftershock with magnitude 5.4 was recorded. Depth was 57.8 km (35.9 miles).
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