Strong mag. 6.5 earthquake - South of Alaska (USA) on Monday, 14 February 1983 at 03:20 (GMT)

Strong mag. 6.5 earthquake  - South of Alaska (USA) on Monday, 14 February 1983 at 03:20 (GMT)

Strong magnitude 6.5 earthquake at 47 km depth

Date & time: 14 Feb 1983 03:20:04 UTC
Magnitude: 6.5
Depth: 47.0 km
Epicenter latitude / longitude: 54.931°N / 159.189°W (Alaska, United States)
Nearest volcano: Stepovak Bay 1 (119 km / 74 mi)
Nearby towns and cities:
95 km (59 mi) ESE of Sand Point (pop: 1,060) --> See nearby quakes!
109 km (68 mi) S of Perryville (pop: 113) --> See nearby quakes!
150 km (93 mi) S of Chignik Lake (pop: 73) --> See nearby quakes!
159 km (99 mi) SSW of Chignik Lagoon (pop: 78) --> See nearby quakes!
200 km (124 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
434 km (270 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
514 km (319 mi) SW of Kodiak Station (pop: 1,300) --> See nearby quakes!
525 km (326 mi) SW of Kodiak (pop: 6,250) --> See nearby quakes!
6107 km (3794 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6107 km (3794 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 atomic bombs!) 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.
M 6.547 kmsouth of Alaska (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.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Aftershocks of the 6.5 quake South of Alaska (USA) 14 February 1983 03:20 GMT

More info
Recorded aftershocks, latest first (5 quakes):
  • 08 Aug 1983 04:37 UTC
    | M 4.7 |
    35.6 km (22.1 mi) depth
    38 km (24 mi) distance
    | USGS | Details
  • 12 May 1983 05:54 UTC
    | M 4.4 |
    33 km (20.5 mi) depth
    40 km (25 mi) distance
    | USGS | Details
  • 27 Feb 1983 15:55 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    20 km (12 mi) distance
    | USGS | Details
  • 15 Feb 1983 18:53 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    19 km (12 mi) distance
    | USGS | Details
  • 14 Feb 1983 08:10 UTC
    | M 5.9 |
    33 km (20.5 mi) depth
    5 km (3 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

Strong mag. 6.5 earthquake - South of Alaska (USA) on Monday, 14 February 1983 at 03:20 (GMT)
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