Major magnitude 7.0 earthquake - Bering Sea, 44 mi southwest of Adak, Aleutians West County, Alaska, USA, on Sunday, 2 May 1971 at 06:08 (GMT)

Major magnitude 7.0 earthquake - Bering Sea, 44 mi southwest of Adak, Aleutians West County, Alaska, USA, on Sunday, 2 May 1971 at 06:08 (GMT)

Major magnitude 7.0 earthquake at 24 km depth

Date & time: 2 May 1971 06:08:27 UTC
Magnitude: 7
Depth: 24.2 km
Epicenter latitude / longitude: 51.396°N / 177.318°W (Bering Sea, Alaska, United States)
Nearest volcano: Bobrof (58 km / 36 mi)
Nearby towns and cities:
71 km (44 mi) SW of Adak (pop: 332) --> See nearby quakes!
232 km (144 mi) WSW of Atka (pop: 64) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2 x 1015 joules (554 gigawatt hours, equivalent to 4.8 x 105 tons of TNT or 29.8 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 7.024 kmAndreanof 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.
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Aftershocks

More info
Recorded aftershocks, latest first (20 quakes):
  • 29 Apr 1973 04:55 UTC
    | M 3.7 |
    33 km (20.5 mi) depth
    |
    117 km (72 mi) distance
    | USGS | Details
  • 16 Apr 1973 14:48 UTC
    | M 5.5 |
    54 km (33.6 mi) depth
    |
    109 km (68 mi) distance
    | USGS | Details
  • 10 Apr 1973 19:01 UTC
    | M 4.0 |
    217 km (134.8 mi) depth
    |
    92 km (57 mi) distance
    | USGS | Details
  • 06 Apr 1973 01:46 UTC
    | M 5.0 |
    50 km (31.1 mi) depth
    |
    78 km (48 mi) distance
    | USGS | Details
  • 05 Apr 1973 09:30 UTC
    | M 3.9 |
    59 km (36.7 mi) depth
    |
    111 km (69 mi) distance
    | USGS | Details
  • 02 Apr 1973 16:49 UTC
    | M 5.2 |
    63 km (39.1 mi) depth
    |
    61 km (38 mi) distance
    | USGS | Details
  • 22 Mar 1973 20:58 UTC
    | M 4.9 |
    40 km (24.9 mi) depth
    |
    135 km (84 mi) distance
    | USGS | Details
  • 01 Mar 1973 11:38 UTC
    | M 4.3 |
    47 km (29.2 mi) depth
    |
    127 km (79 mi) distance
    | USGS | Details
  • 13 Feb 1973 19:53 UTC
    | M 5.4 |
    46 km (28.6 mi) depth
    |
    133 km (83 mi) distance
    | USGS | Details
  • 03 Feb 1973 19:52 UTC
    | M 4.7 |
    60 km (37.3 mi) depth
    |
    119 km (74 mi) distance
    | USGS | Details
  • 13 Jan 1973 13:36 UTC
    | M 4.7 |
    58 km (36 mi) depth
    |
    45 km (28 mi) distance
    | USGS | Details
  • 13 Jan 1973 01:00 UTC
    | M 5.4 |
    61 km (37.9 mi) depth
    |
    47 km (29 mi) distance
    | USGS | Details
  • 09 Jan 1973 17:07 UTC
    | M 5.1 |
    52 km (32.3 mi) depth
    |
    62 km (39 mi) distance
    | USGS | Details
  • 26 Dec 1972 22:03 UTC
    | M 5.5 |
    52.9 km (32.9 mi) depth
    |
    75 km (46 mi) distance
    | USGS | Details
  • 12 Aug 1972 09:42 UTC
    | M 5.9 |
    35 km (21.7 mi) depth
    |
    135 km (84 mi) distance
    | USGS | Details
  • 03 Aug 1972 07:03 UTC
    | M 5.6 |
    35 km (21.7 mi) depth
    |
    57 km (35 mi) distance
    | USGS | Details
  • 03 Aug 1972 06:59 UTC
    | M 5.6 |
    35 km (21.7 mi) depth
    |
    73 km (45 mi) distance
    | USGS | Details
  • 03 Aug 1972 04:40 UTC
    | M 6.4 |
    33.5 km (20.8 mi) depth
    |
    68 km (42 mi) distance
    | USGS | Very strong mag. 6.4 earthquake - Bering Sea, 34 mi southeast of Tag s Island, Aleutians West County, Alaska, USA, on Thursday, 3 August 1972 at 04:40 (GMT)
  • 06 Jun 1972 02:19 UTC
    | M 5.5 |
    47.5 km (29.5 mi) depth
    |
    66 km (41 mi) distance
    | USGS | Details
  • 20 Mar 1972 23:31 UTC
    | M 5.9 |
    35 km (21.7 mi) depth
    |
    134 km (83 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

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