Very strong mag. 6.2 earthquake - North Pacific Ocean, 90 mi south of Unalaska, Aleutians West (CA) County, Alaska, USA, on Friday, 25 May 1979 at 16:45 (GMT)

Very strong mag. 6.2 earthquake - North Pacific Ocean, 90 mi south of Unalaska, Aleutians West (CA) County, Alaska, USA, on Friday, 25 May 1979 at 16:45 (GMT)

Very strong magnitude 6.2 earthquake at 23 km depth

Date & time: 25 May 1979 16:45:27 UTC
Magnitude: 6.2
Depth: 23.0 km
Epicenter latitude / longitude: 52.611°N / 167.019°W (North Pacific Ocean, Alaska, United States)
Nearest volcano: Okmok (116 km / 72 mi)
Nearby towns and cities:
129 km (80 mi) ESE of Nikolski (pop: 18) --> See nearby quakes!
144 km (90 mi) SSW of Unalaska (pop: 4,490) --> See nearby quakes!
188 km (117 mi) SSW of Akutan (pop: 1,040) --> See nearby quakes!
344 km (214 mi) SW of False Pass (pop: 40) --> See nearby quakes!
402 km (250 mi) SW of Cold Bay (pop: 123) --> See nearby quakes!
411 km (256 mi) SW of King Cove (pop: 1,010) --> See nearby quakes!
523 km (325 mi) WSW of Sand Point (pop: 1,060) --> See nearby quakes!
533 km (331 mi) SW of Nelson Lagoon (pop: 52) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1014 joules (35 gigawatt hours, equivalent to 30089 tons of TNT or 1.9 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.
MagnitudeDepthLocationSource
M 6.223 kmFox Islands, Aleutian Islands, 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

More info
Recorded aftershocks, latest first (36 quakes):
  • 09 Sep 1979 07:24 UTC
    | M 4.6 |
    15 km (9.3 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
  • 22 Jul 1979 23:09 UTC
    | M 4.1 |
    33 km (20.5 mi) depth
    |
    49 km (31 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
  • 05 Jul 1979 07:48 UTC
    | M 4.9 |
    21 km (13 mi) depth
    |
    20 km (12 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
  • 04 Jul 1979 18:57 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    26 km (16 mi) distance
    | USGS | Details
  • 12 Jun 1979 22:20 UTC
    | M 4.5 |
    40 km (24.9 mi) depth
    |
    43 km (26 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
  • 04 Jun 1979 20:39 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    48 km (30 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14045 km (8727 mi) distance
    | | Details
    • Show all

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Earlier earthquakes in the same area

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