Strong mag. 6.0 earthquake - 90km SSW of Atka, Alaska on Saturday, 31 August 2013
Strong mag. 5.9 earthquake - Bering Sea, 49 mi southeast of Oglodak Island, Aleutians West County, Alaska, USA, on Friday, August 30, 2013 18:38:36
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 14 hours earlier.
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Strong magnitude 5.9 earthquake at 17 km depth
31 Aug 06:47 UTC: First to report: USGS after 8 minutes.
Date & time: 31 Aug 2013 06:38:36 UTC
Local time at epicenter: Friday, August 30, 2013 18:38:36
Magnitude: 5.9
Depth: 17.2 km
Epicenter latitude / longitude: 51.3556°N / 174.9259°W
(Bering Sea, Alaska, United States)Nearest volcano: Sergief (68 km / 42 mi)
Nearby towns and cities:
106 km (66 mi) SSW of Atka (pop: 64) --> See nearby quakes!
131 km (82 mi) ESE of Adak (pop: 332) --> See nearby quakes!
450 km (279 mi) WSW of Nikolski (pop: 18) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 4.5 x 1013 joules (12.4 gigawatt hours, equivalent to 10676 tons of TNT or 0.7 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 5.9 | 17 km | 106km SSW of Atka, Alaska | USGS |
| M 5.9 | 10 km | Andreanof Islands, Aleutian Islands | GFZ |
| M 5.9 | 60 km | ANDREANOF ISLANDS, ALEUTIAN IS. | EMSC |
| M 5.9 | 17 km | SSW of Atka, Alaska | GeoAu |
(shakemap: USGS)
User reports for this quake (1)
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atka / Violent shaking (MMI IX) : wierd
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