Moderate mag. 5.3 earthquake - North Pacific Ocean, 1023 km south of Tokyo, Japan, on Tuesday, 21 December 2010 at 20:16 (GMT)

Moderate mag. 5.3 earthquake - North Pacific Ocean, 1023 km south of Tokyo, Japan, on Tuesday, 21 December 2010 at 20:16 (GMT)

Moderate magnitude 5.3 earthquake at 3 km depth

Date & time: 21 Dec 2010 20:16:38 UTC
Magnitude: 5.3
Depth: 3.3 km
Epicenter latitude / longitude: 27.085°N / 143.514°E (North Pacific Ocean, Japan)
Nearest volcano: unnamed (143 km / 89 mi)
Nearby towns and cities:
1023 km (636 mi) SSE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5.6 x 1012 joules (1.56 gigawatt hours, equivalent to 1344 tons of TNT) 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 5.33.3 kmBonin Islands, Japan regionUSGS
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 5.3 quake North Pacific Ocean, 1023 km south of Tokyo, Japan, 21 December 2010 20:16 GMT

More info
Recorded aftershocks, latest first (371 quakes):
  • 11 Feb 2011 16:21 UTC
    | M 4.5 |
    10 km (6.2 mi) depth
    |
    27 km (17 mi) distance
    | USGS | Details
  • 11 Feb 2011 06:41 UTC
    | M 4.3 |
    10 km (6.2 mi) depth
    |
    4 km (2 mi) distance
    | USGS | Details
  • 10 Feb 2011 20:29 UTC
    | M 4.4 |
    10 km (6.2 mi) depth
    |
    7 km (4 mi) distance
    | USGS | Details
  • 10 Feb 2011 03:04 UTC
    | M 5.0 |
    10 km (6.2 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Details
  • 08 Feb 2011 05:37 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    12 km (7 mi) distance
    | USGS | Details
  • 06 Feb 2011 21:44 UTC
    | M 4.6 |
    10 km (6.2 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details
  • 05 Feb 2011 06:22 UTC
    | M 4.5 |
    10 km (6.2 mi) depth
    |
    7 km (4 mi) distance
    | USGS | Details
  • 04 Feb 2011 00:17 UTC
    | M 4.2 |
    10 km (6.2 mi) depth
    |
    6 km (4 mi) distance
    | USGS | Details
  • 03 Feb 2011 19:10 UTC
    | M 4.3 |
    10 km (6.2 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 02 Feb 2011 04:48 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    21 km (13 mi) distance
    | USGS | Details
  • 01 Feb 2011 18:41 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    6 km (4 mi) distance
    | USGS | Details
  • 01 Feb 2011 18:37 UTC
    | M 4.9 |
    10 km (6.2 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details
  • 01 Feb 2011 17:51 UTC
    | M 4.9 |
    10 km (6.2 mi) depth
    |
    3 km (2 mi) distance
    | USGS | Details
  • 01 Feb 2011 17:47 UTC
    | M 4.5 |
    10 km (6.2 mi) depth
    |
    7 km (4 mi) distance
    | USGS | Details
  • 31 Jan 2011 07:45 UTC
    | M 4.3 |
    10 km (6.2 mi) depth
    |
    26 km (16 mi) distance
    | USGS | Details
  • 30 Jan 2011 18:42 UTC
    | M 4.0 |
    10 km (6.2 mi) depth
    |
    23 km (14 mi) distance
    | USGS | Details
    • Show all

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Earlier earthquakes in the same area

Moderate mag. 5.3 earthquake - North Pacific Ocean, 1023 km south of Tokyo, Japan, on Tuesday, 21 December 2010 at 20:16 (GMT)
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