Moderate mag. 5.1 earthquake - North Pacific Ocean, 1009 km south of Tokyo, Japan, on Wednesday, 6 April 2011 at 07:12 (GMT)

Moderate mag. 5.1 earthquake - North Pacific Ocean, 1009 km south of Tokyo, Japan, on Wednesday, 6 April 2011 at 07:12 (GMT)

Moderate magnitude 5.1 earthquake at 37 km depth

Date & time: 6 Apr 2011 07:12:12 UTC
Magnitude: 5.1
Depth: 37.0 km
Epicenter latitude / longitude: 27.164°N / 143.324°E (North Pacific Ocean, Japan)
Nearest volcano: unnamed (163 km / 101 mi)
Nearby towns and cities:
1009 km (627 mi) SSE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 1012 joules (783 megawatt hours, equivalent to 674 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 5.137 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

More info
Recorded aftershocks, latest first (9 quakes):
  • 09 May 2011 14:52 UTC
    | M 4.6 |
    1.4 km (0.9 mi) depth
    |
    16 km (10 mi) distance
    | USGS | Details
  • 10 Apr 2011 21:04 UTC
    | M 4.4 |
    35 km (21.7 mi) depth
    |
    17 km (11 mi) distance
    | USGS | Details
  • 08 Apr 2011 04:40 UTC
    | M 4.5 |
    11.4 km (7.1 mi) depth
    |
    16 km (10 mi) distance
    | USGS | Details
  • 07 Apr 2011 17:40 UTC
    | M 4.5 |
    35 km (21.7 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details
  • 07 Apr 2011 17:39 UTC
    | M 4.7 |
    27.7 km (17.2 mi) depth
    |
    11 km (7 mi) distance
    | USGS | Details
  • 07 Apr 2011 15:02 UTC
    | M 4.8 |
    35 km (21.7 mi) depth
    |
    3 km (2 mi) distance
    | USGS | Details
  • 07 Apr 2011 04:00 UTC
    | M 4.6 |
    35 km (21.7 mi) depth
    |
    7 km (4 mi) distance
    | USGS | Details
  • 07 Apr 2011 00:16 UTC
    | M 4.8 |
    35 km (21.7 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 06 Apr 2011 23:14 UTC
    | M 4.9 |
    35 km (21.7 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Moderate mag. 5.1 earthquake - North Pacific Ocean, 1009 km south of Tokyo, Japan, on Wednesday, 6 April 2011 at 07:12 (GMT)
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