Strong mag. 6.1 earthquake - North Pacific Ocean, 73 km southeast of Kamaishi, Kamaishi-shi, Iwate, Japan, on Friday, 11 March 2011 at 20:11 (GMT)

Strong mag. 6.1 earthquake - North Pacific Ocean, 73 km southeast of Kamaishi, Kamaishi-shi, Iwate, Japan, on Friday, 11 March 2011 at 20:11 (GMT)

Strong magnitude 6.1 earthquake at 17 km depth

Date & time: 11 Mar 2011 20:11:24 UTC
Magnitude: 6.1
Depth: 17.4 km
Epicenter latitude / longitude: 39.005°N / 142.633°E (North Pacific Ocean, Japan)
Nearest volcano: Yakeishi (156 km / 97 mi)
Nearby towns and cities:
73 km (45 mi) ESE of Kamaishi (pop: 43,100) --> See nearby quakes!
75 km (47 mi) ESE of Ōtsuchi (Kamihei-gun) (pop: 16,500) --> See nearby quakes!
78 km (49 mi) SE of Yamada (Shimohei-gun) (pop: 20,100) --> See nearby quakes!
80 km (49 mi) E of Ōfunato (pop: 35,400) --> See nearby quakes!
93 km (58 mi) SE of Miyako (pop: 51,700) --> See nearby quakes!
101 km (63 mi) ESE of Tōno (pop: 26,800) --> See nearby quakes!
133 km (83 mi) ENE of Ishinomaki (pop: 117,200) --> See nearby quakes!
134 km (84 mi) ESE of Kitakami (pop: 93,900) --> See nearby quakes!
174 km (108 mi) ENE of Sendai (pop: 1,063,100) --> See nearby quakes!
451 km (280 mi) NE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 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.
MagnitudeDepthLocationSource
M 6.117 kmnear 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 6.1 quake North Pacific Ocean, 73 km southeast of Kamaishi, Kamaishi-shi, Iwate, Japan, 11 March 2011 20:11 GMT

More info
Recorded aftershocks, latest first (188 quakes):
  • 02 Sep 2011 04:08 UTC
    | M 4.6 |
    47.3 km (29.4 mi) depth
    |
    32 km (20 mi) distance
    | USGS | Details
  • 01 Sep 2011 22:52 UTC
    | M 4.3 |
    35 km (21.7 mi) depth
    |
    38 km (24 mi) distance
    | USGS | Details
  • 10 Aug 2011 04:29 UTC
    | M 4.5 |
    58.9 km (36.6 mi) depth
    |
    24 km (15 mi) distance
    | USGS | Details
  • 09 Aug 2011 18:29 UTC
    | M 4.6 |
    67.9 km (42.2 mi) depth
    |
    48 km (30 mi) distance
    | USGS | Details
  • 08 Aug 2011 01:05 UTC
    | M 4.6 |
    51.2 km (31.8 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 02 Aug 2011 16:44 UTC
    | M 4.3 |
    50.9 km (31.6 mi) depth
    |
    30 km (19 mi) distance
    | USGS | Details
  • 31 Jul 2011 19:33 UTC
    | M 4.6 |
    49.8 km (30.9 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 31 Jul 2011 08:46 UTC
    | M 4.6 |
    60.4 km (37.5 mi) depth
    |
    27 km (17 mi) distance
    | USGS | Details
  • 30 Jul 2011 12:08 UTC
    | M 4.4 |
    44 km (27.3 mi) depth
    |
    28 km (17 mi) distance
    | USGS | Details
  • 28 Jul 2011 16:50 UTC
    | M 5.2 |
    47.8 km (29.7 mi) depth
    |
    12 km (7 mi) distance
    | USGS | Details
  • 28 Jul 2011 14:16 UTC
    | M 4.2 |
    35 km (21.7 mi) depth
    |
    5 km (3 mi) distance
    | USGS | Details
  • 25 Jul 2011 21:33 UTC
    | M 4.9 |
    11.5 km (7.1 mi) depth
    |
    3 km (2 mi) distance
    | USGS | Details
  • 14 Jul 2011 16:47 UTC
    | M 4.4 |
    35 km (21.7 mi) depth
    |
    27 km (17 mi) distance
    | USGS | Details
  • 13 Jul 2011 04:10 UTC
    | M 4.5 |
    44.2 km (27.5 mi) depth
    |
    19 km (12 mi) distance
    | USGS | Details
  • 11 Jul 2011 20:13 UTC
    | M 4.5 |
    47.4 km (29.5 mi) depth
    |
    26 km (16 mi) distance
    | USGS | Details
  • 03 Jul 2011 07:48 UTC
    | M 4.6 |
    35 km (21.7 mi) depth
    |
    23 km (14 mi) distance
    | USGS | Details
    • Show all

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Earlier earthquakes in the same area since 1900

Strong mag. 6.1 earthquake - North Pacific Ocean, 73 km southeast of Kamaishi, Kamaishi-shi, Iwate, Japan, on Friday, 11 March 2011 at 20:11 (GMT)

Map of earlier quakes

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