Very strong mag. 6.9 earthquake - Bering Sea, 25 mi southwest of Nikolski, Aleutians West (CA) County, Alaska, USA, on Saturday, 22 July 1933 at 20:55 (GMT)
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Very strong magnitude 6.9 earthquake at 30 km depth
Date & time: 22 Jul 1933 20:55:19 UTC
Depth: 30.0 km
Epicenter latitude / longitude: 52.616°N / 169.148°W (Bering Sea, Alaska, United States)
Nearest volcano: Tana (48 km / 30 mi)
Nearby towns and cities:
41 km (25 mi) SSW of Nikolski (pop: 18) --> See nearby quakes!
223 km (139 mi) SW of Unalaska (pop: 4,490) --> See nearby quakes!
280 km (174 mi) SW of Akutan (pop: 1,040) --> See nearby quakes!
346 km (215 mi) E of Atka (pop: 64) --> See nearby quakes!
452 km (281 mi) WSW of False Pass (pop: 40) --> See nearby quakes!
509 km (316 mi) WSW of Cold Bay (pop: 123) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.4 x 1015 joules (392 gigawatt hours, equivalent to 3.4 x 105 tons of TNT or 21.1 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.
|M 6.9||30 km||Fox Islands, Aleutian Islands, Alaska (USA)||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.