Strong mag. 6.4 earthquake - Off the East Coast of Honshu, Japan, on Tuesday, 22 March 2011 at 09:44 (GMT)

Strong mag. 6.4 earthquake  - Off the East Coast of Honshu, Japan, on Tuesday, 22 March 2011 at 09:44 (GMT)

Strong magnitude 6.4 earthquake at 13 km depth

Date & time: 22 Mar 2011 09:44:29 UTC###AGESTRINGCOPY###
Magnitude: 6.4
Profondeur: 13.0 km
Epicenter latitude / longitude: 39.851°N / 143.437°E (Japon)
Volcan le plus près: Nanashigure (200 km / 124 mi)
Nearby towns and cities:
130 km E de Miyako (pop: 51,700)
134 km ENE de Yamada (Shimohei-gun) (pop: 20,100)
149 km ENE de Kamaishi (pop: 43,100)
180 km ESE de Hachinohe (pop: 239,000)
196 km E de Morioka (pop: 295,200)
209 km ENE de Kitakami (pop: 93,900)
398 km SSE de Sapporo (pop: 1,883,000)
568 km NE de Tokyo (pop: 8,336,600)
Primary data source: USGS
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 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.
MagnitudeProfondeurLocationSource
M 6.413 kmoff the east coast of Honshu, JapanUSGS
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 6.4 quake Off the East Coast of Honshu, Japan, 22 March 09:44 UTC

More info
Recorded aftershocks, latest first (153 quakes):
  • 18 Sep 2011 07:04 UTC
    | M 5.6 |
    10 km (6.2 mi) depth
    |
    33 km (20 mi) distance
    | USGS | Details
  • 17 Sep 2011 21:05 UTC
    | M 4.3 |
    46.7 km (29 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 17 Sep 2011 17:54 UTC
    | M 5.2 |
    22.1 km (13.7 mi) depth
    |
    48 km (30 mi) distance
    | USGS | Details
  • 17 Sep 2011 11:16 UTC
    | M 4.6 |
    36.9 km (22.9 mi) depth
    |
    60 km (37 mi) distance
    | USGS | Details
  • 17 Sep 2011 08:24 UTC
    | M 4.7 |
    52.9 km (32.9 mi) depth
    |
    22 km (14 mi) distance
    | USGS | Details
  • 17 Sep 2011 01:18 UTC
    | M 4.7 |
    35.7 km (22.2 mi) depth
    |
    50 km (31 mi) distance
    | USGS | Details
  • 17 Sep 2011 00:21 UTC
    | M 4.2 |
    27.2 km (16.9 mi) depth
    |
    44 km (27 mi) distance
    | USGS | Details
  • 16 Sep 2011 22:40 UTC
    | M 5.7 |
    37.7 km (23.4 mi) depth
    |
    50 km (31 mi) distance
    | USGS | Details
  • 16 Sep 2011 22:20 UTC
    | M 4.2 |
    39.7 km (24.7 mi) depth
    |
    55 km (34 mi) distance
    | USGS | Details
  • 16 Sep 2011 22:06 UTC
    | M 4.1 |
    47.2 km (29.3 mi) depth
    |
    19 km (12 mi) distance
    | USGS | Details
  • 16 Sep 2011 21:46 UTC
    | M 4.3 |
    24.7 km (15.3 mi) depth
    |
    50 km (31 mi) distance
    | USGS | Details
  • 16 Sep 2011 21:36 UTC
    | M 5.8 |
    40.7 km (25.3 mi) depth
    |
    35 km (22 mi) distance
    | USGS | Details
  • 16 Sep 2011 21:08 UTC
    | M 5.9 |
    18 km (11.2 mi) depth
    |
    57 km (35 mi) distance
    | USGS | Details
  • 16 Sep 2011 20:25 UTC
    | M 4.1 |
    35 km (21.7 mi) depth
    |
    40 km (25 mi) distance
    | USGS | Details
  • 16 Sep 2011 20:20 UTC
    | M 4.1 |
    35 km (21.7 mi) depth
    |
    36 km (22 mi) distance
    | USGS | Details
  • 16 Sep 2011 20:16 UTC
    | M 4.9 |
    35 km (21.7 mi) depth
    |
    44 km (27 mi) distance
    | USGS | Details
  • Show all

Earlier earthquakes in the same area

Strong mag. 6.4 earthquake - Off the East Coast of Honshu, Japan, on Tuesday, 22 March 2011 at 09:44 (GMT)
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