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Interactive map of latest earthquakes and active volcanoes in the world

Strong mag. 6.4 earthquake - Off the East Coast of Honshu, Japan on Tuesday, 22 March 2011

Strong mag. 6.4 earthquake - Off the East Coast of Honshu, Japan on Tuesday, 22 March 2011
Date & time: Tuesday, 22 March 2011 09:44 UTC
Magnitude: 6.4
Depth: 13.0 km
Epicenter latitude / longitude: 39.851°N / 143.437°E (Japan)
Nearest volcano: Nanashigure (200 km / 124 mi)
Nearby towns and cities:
130 km (81 mi) E of Miyako (pop: 51,700)
134 km (83 mi) NE of Yamada (pop: 20,100)
142 km (88 mi) NE of Ōtsuchi (pop: 16,500)
180 km (112 mi) SE of Hachinohe (pop: 239,000)
196 km (122 mi) E of Morioka (pop: 295,200)
568 km (353 mi) NE of 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!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
TimeMag. / DepthLocationSource
Tue, 22 Mar 09:44 UTCM 6.4 / 13 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 Mar 2011 09:44

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

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Earlier earthquakes in the same area

Strong mag. 6.4 earthquake - Off the East Coast of Honshu, Japan on Tuesday, 22 March 2011
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