Strong mag. 5.5 earthquake - Bering Sea, 49 mi southwest of Atka, Aleutians West County, Alaska, USA, on Tuesday, September 03, 2013 16:16:31
This quake was likely an aftershock of the 7.0 quake Bering Sea, 26 mi south of Ikiginak Island, Aleutians West County, Alaska, USA, Friday, August 30, 2013 04:25:02, which had occurred 4 days earlier.
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Strong magnitude 5.5 earthquake at 35 km depth
4 Sep 04:20 UTC: First to report: USGS after 4 minutes.
Date & time: 4 Sep 2013 04:16:31 UTC
Local time at epicenter: Tuesday, September 03, 2013 16:16:31
Magnitude: 5.5
Depth: 34.6 km
Epicenter latitude / longitude: 51.5974°N / 174.8128°W

Nearest volcano: Sergief (46 km / 29 mi)
Nearby towns and cities:
79 km (49 mi) SSW of Atka (pop: 64) --> See nearby quakes!
129 km (80 mi) ESE of Adak (pop: 332) --> See nearby quakes!
432 km (268 mi) WSW of Nikolski (pop: 18) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) More info
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Magnitude | Depth | Location | Source |
M 5.5 | 35 km | 78km SSW of Atka, Alaska | USGS |
M 5.8 | 24 km | Andreanof Islands, Aleutian Islands | GFZ |
M 5.8 | 10 km | ANDREANOF ISLANDS, ALEUTIAN IS. | EMSC |
User reports for this quake (1)
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Oakland, CA (4312.2 km E of epicenter) [Map] / Strong shaking (MMI VI) : woke me up the first time
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