Light mag. 4.2 earthquake - Gulf of Alaska, 37 mi south of Sand Point, Aleutians East County, Alaska, USA, on Sunday, 22 April 1973 at 05:27 (GMT)

Light mag. 4.2 earthquake - Gulf of Alaska, 37 mi south of Sand Point, Aleutians East County, Alaska, USA, on Sunday, 22 April 1973 at 05:27 (GMT)

Light magnitude 4.2 earthquake at 33 km depth

Date & time: 22 Apr 1973 05:27:56 UTC
Magnitude: 4.2
Depth: 33.0 km
Epicenter latitude / longitude: 54.805°N / 160.437°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Dana (105 km / 65 mi)
Nearby towns and cities:
59 km (37 mi) S of Sand Point (pop: 1,060) --> See nearby quakes!
124 km (77 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
142 km (88 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
148 km (92 mi) SW of Perryville (pop: 113) --> See nearby quakes!
152 km (94 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
191 km (118 mi) E of False Pass (pop: 40) --> See nearby quakes!
193 km (120 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
206 km (128 mi) SW of Chignik Lagoon (pop: 78) --> See nearby quakes!
353 km (219 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
409 km (254 mi) ENE of Unalaska (pop: 4,490) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) More info
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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.
MagnitudeDepthLocationSource
M 4.233 kmAlaska Peninsula (USA)USGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

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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