Strong mag. 6.0 earthquake - North Pacific Ocean, 60 mi south of Sanak Island, Aleutians East County, Alaska, USA, on Sunday, 22 May 1988 at 09:39 (GMT)

Strong mag. 6.0 earthquake - North Pacific Ocean, 60 mi south of Sanak Island, Aleutians East County, Alaska, USA, on Sunday, 22 May 1988 at 09:39 (GMT)

Tremblement de terre fort magnitude 6.0 at 33 km depth

Date & time: 22 May 1988 09:39:55 UTC
Magnitude: 6
Profondeur: 33.0 km
Epicenter latitude / longitude: 53.619°N / 163.267°W (Océan Pacifique Nord, Alaska, États-Unis)
Volcan le plus près: Isanotski (131 km / 81 mi)
Nearby towns and cities:
138 km S de False Pass (pop: 40) --> Voir les séismes à proximité!
172 km SSO de King Cove (pop: 1,010) --> Voir les séismes à proximité!
174 km ESE de Akutan (pop: 1,040) --> Voir les séismes à proximité!
178 km S de Cold Bay (pop: 123) --> Voir les séismes à proximité!
217 km E de Unalaska (pop: 4,490) --> Voir les séismes à proximité!
262 km SO de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
296 km SSO de Nelson Lagoon (pop: 52) --> Voir les séismes à proximité!
367 km SO de Perryville (pop: 113) --> Voir les séismes à proximité!
411 km SO de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
425 km SO de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 6.3 x 1013 joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 atomic bombs!) Plus d'infos
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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.
MagnitudeProfondeurLieuSource
6.033 kmUnimak Island region, 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 (3 quakes):
  • 08 Oct 1988 02:19 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    16 km (10 mi) distance
    | USGS | Details
  • 22 May 1988 13:37 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    20 km (13 mi) distance
    | USGS | Details
  • 22 May 1988 11:38 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    7 km (4 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

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