Mag. 3.7 earthquake - 72 mi south of Sand Point, Alaska, on Thursday, 12 November 2020 at 11:39 (GMT) -
This quake was likely an aftershock of the 7.6 quake Gulf of Alaska, 60 mi southeast of Sand Point, Aleutians East County, Alaska, USA, 19 Oct 2020 11:54 am (GMT -9), which had occurred 3 weeks earlier.
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Minor magnitude 3.7 earthquake at 20 km depth
12 Nov 18:10 UTC: First to report: USGS after 7 hours.
13 Nov 10:24: Magnitude recalculated from 3.5 to 3.7. Hypocenter depth recalculated from 18.3 to 20.0 km (from 11.4 to 12.4 mi). Epicenter location corrected by 6.9 km (4.3 mi) towards SSW.
13 Nov 10:24: Magnitude recalculated from 3.5 to 3.7. Hypocenter depth recalculated from 18.3 to 20.0 km (from 11.4 to 12.4 mi). Epicenter location corrected by 6.9 km (4.3 mi) towards SSW.
Magnitude: 3.7
Depth: 20.0 km
Epicenter latitude / longitude: 54.3645°N / 159.8811°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Dana (163 km / 101 mi)
Nearby towns and cities:
115 km (72 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
175 km (109 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
178 km (111 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
201 km (125 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
204 km (127 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
222 km (138 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
234 km (145 mi) SSW of Chignik (pop: 87) --> See nearby quakes!
384 km (239 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
6170 km (3834 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6170 km (3834 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
51 km (32 mi) SSW of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.2 x 1010 joules (6.22 megawatt hours, equivalent to 5.35 tons of TNT) 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 3.7 | 20 km | 115 Km SSE of Sand Point, Alaska, USA | USGS |
User reports for this quake (1)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
