Mag. 4.5 earthquake - 90 mi east of Sand Point, Aleutians East County, Alaska, on Wednesday, 22 July 2020 at 13:33 (GMT) -
This quake was likely an aftershock of the 7.8 quake Gulf of Alaska, 31 mi east of Simeonof Island, Aleutians East County, Alaska, USA, 22 July 2020 06:12 GMT, which had occurred 7 hours earlier.
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Light magnitude 4.5 earthquake at 13 km depth
22 Jul 13:52 UTC: First to report: USGS after 19 minutes.
Magnitude: 4.5
Depth: 13.2 km
Epicenter latitude / longitude: 54.9331°N / 158.3389°W

Nearest volcano: Kupreanof (151 km / 94 mi)
Nearby towns and cities:
120 km (75 mi) SSE of Perryville (pop: 113) --> See nearby quakes!
144 km (90 mi) ESE of Sand Point (pop: 1,060) --> See nearby quakes!
149 km (93 mi) S of Chignik Lake (pop: 73) --> See nearby quakes!
153 km (95 mi) S of Chignik Lagoon (pop: 78) --> See nearby quakes!
254 km (158 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
473 km (294 mi) SW of Kodiak Station (pop: 1,300) --> See nearby quakes!
484 km (301 mi) SW of Kodiak (pop: 6,250) --> See nearby quakes!
488 km (303 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
6055 km (3763 mi) NW of Washington DC (pop: 601,700) --> See nearby quakes!
6055 km (3763 mi) NW of Washington DC (pop: 601,700) --> See nearby quakes!
59 km (37 mi) E of Simeonof Island --> See nearby quakes!
79 km (49 mi) ENE of Chernabura Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 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 4.7 | 30 km | South Of Alaska (USA) | EMSC |
M 4.5 | 13 km | 120 km SSE of Perryville, Alaska (USA) | USGS |
M 4.7 | 30 km | Alaska Peninsula (USA) | GFZ |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Mag. 4.5 earthquake - 90 mi east of Sand Point, Aleutians East County, Alaska, on Wednesday, 22 July 2020 at 13:33 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!