Strong mag. 6.0 earthquake - 90km SSW of Atka, Alaska on Saturday, 31 August 2013
Moderate mag. 5.9 earthquake - 106km SSW of Atka, Alaska on Saturday, 31 August 2013
This quake was likely an aftershock of the M 7.0 quake: 94km ESE of Adak, Alaska on Fri, 30 Aug 16h25
Date & time: Sat, 31 Aug 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
(United States)
Nearest volcano: Sergief (68 km)
Primary data source: USGS
Estimated released energy: 4.5*10^13 J (12.4 GWh / 10676 tons of TNT / 0.7 atomic bombs equivalent) [learn more]
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
(United States)Nearest volcano: Sergief (68 km)
Primary data source: USGS
Estimated released energy: 4.5*10^13 J (12.4 GWh / 10676 tons of TNT / 0.7 atomic bombs equivalent) [learn more]
Data for same earthquake as reported from other agencies
| Time | Mag. / Depth | Location | Source | |
| Sat, 31 Aug 2013 | ||||
| Sat, 31 Aug 06:38 UTC | M 5.9 / 10 km | Andreanof Islands, Aleutian Islands | GFZ | |
| Sat, 31 Aug 06:38 UTC | M 5.9 / 60 km | ANDREANOF ISLANDS, ALEUTIAN IS. | EMSC | |
| Sat, 31 Aug 06:38 UTC | M 5.9 / 17 km | SSW of Atka, Alaska | GeoAu | |
(shakemap: USGS)
"I felt it" reports:
atka / MMI IX (Violent shaking): wierd
