Very strong mag. 6.0 earthquake - North Pacific Ocean, Russia, 123 km east of Nemuro, Hokkaido, Japan, on Saturday, March 31, 1990 at 19:31 (GMT)

Very strong mag. 6.0 earthquake - North Pacific Ocean, Russia, 123 km east of Nemuro, Hokkaido, Japan, on Saturday, March 31, 1990 at 19:31 (GMT)

Very strong magnitude 6.0 earthquake at 21 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Mar 31, 1990 19:31:42 UTC
Magnitude: 6
Depth: 21.0 km
Epicenter latitude / longitude: 42.891°N / 146.969°E (North Pacific Ocean, Russia)
Antipode: 42.891°S / 33.031°W
Nearest volcano: Mendeleev (156 km / 97 mi)
Nearby towns and cities:
103 km (64 mi) SSE of Shikotan (pop: 2,100) --> See nearby quakes!
123 km (76 mi) ESE of Nemuro (Japan) (pop: 31,200) --> See nearby quakes!
172 km (107 mi) ESE of Shibetsu (Japan) (pop: 21,700) --> See nearby quakes!
211 km (131 mi) E of Kushiro (Japan) (pop: 183,600) --> See nearby quakes!
252 km (156 mi) ESE of Abashiri (Japan) (pop: 42,500) --> See nearby quakes!
255 km (158 mi) ESE of Motomachi (Abashiri District, Japan) (pop: 23,000) --> See nearby quakes!
269 km (167 mi) ESE of Kitami (Japan) (pop: 113,100) --> See nearby quakes!
307 km (191 mi) E of Obihiro (Japan) (pop: 173,900) --> See nearby quakes!
532 km (330 mi) SE of Korsakov (pop: 35,100) --> See nearby quakes!
583 km (362 mi) SE of Nevel'sk (pop: 17,000) --> See nearby quakes!
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!) 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.
Mag.DepthLocationSource
6.021 kmoff the coast of Hokkaido, Japan (Russia)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 (7 quakes)

  • 02 May 1990 06:50 UTC
    | M 4.5 |
    33 km (20.5 mi) depth
    |
    40 km (25 mi) distance
    | USGS | Details
  • 02 Apr 1990 09:38 UTC
    | M 5.0 |
    38.5 km (23.9 mi) depth
    |
    6 km (4 mi) distance
    | USGS | Details
  • 02 Apr 1990 06:22 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details
  • 01 Apr 1990 22:35 UTC
    | M 4.2 |
    33 km (20.5 mi) depth
    |
    6 km (4 mi) distance
    | USGS | Details
  • 31 Mar 1990 21:12 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    4 km (3 mi) distance
    | USGS | Details
  • 31 Mar 1990 21:09 UTC
    | M 4.7 |
    34.8 km (21.6 mi) depth
    |
    11 km (7 mi) distance
    | USGS | Details
  • 31 Mar 1990 20:55 UTC
    | M 5.0 |
    41.3 km (25.7 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

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