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Strong mag. 6.9 earthquake - Near the East Coast of Honshu, Japan on Sunday, 18 January 1981

Strong mag. 6.9 earthquake  - Near the East Coast of Honshu, Japan on Sunday, 18 January 1981
Date & time: Sunday, 18 January 1981 18:17 UTC
Magnitude: 6.9
Depth: 33.0 km
Epicenter latitude / longitude: 38.64°N / 142.75°E (Japan)
Nearest volcano: Kurikoma (173 km / 107 mi)
Nearby towns and cities:
102 km (63 mi) SE of Ōfunato (pop: 35,400)
104 km (65 mi) SE of Kamaishi (pop: 43,100)
109 km (68 mi) SE of Ōtsuchi (pop: 16,500)
169 km (105 mi) NE of Sendai (pop: 1,063,100)
181 km (113 mi) SE of Morioka (pop: 295,200)
426 km (264 mi) NE of Tokyo (pop: 8,336,600)
Primary data source: USGS
Estimated released energy: 1.4 x 1015 joules (392 gigawatt hours, equivalent to 3.4 x 105 tons of TNT or 21.1 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
Sun, 18 Jan 18:17 UTCM 6.9 / 33 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!

Aftershocks of the 6.9 quake: Near the East Coast of Honshu, Japan, 18 Jan 1981 18:17

More info
Recorded aftershocks, latest first (49 quakes):
  • 09 Jul 1981 01:28 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    146 km (91 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14286 km (8877 mi) distance
    | | Details
  • 09 Jul 1981 00:13 UTC
    | M 4.5 |
    61.1 km (38 mi) depth
    |
    121 km (75 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14286 km (8877 mi) distance
    | | Details
  • 01 Jul 1981 23:06 UTC
    | M 4.7 |
    52.5 km (32.6 mi) depth
    |
    112 km (70 mi) distance
    | USGS | Details
  • 01 Jul 1981 04:51 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    42 km (26 mi) distance
    | USGS | Details
  • 08 Jun 1981 20:56 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    25 km (15 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14286 km (8877 mi) distance
    | | Details
  • 06 Jun 1981 18:25 UTC
    | M 4.2 |
    57.4 km (35.7 mi) depth
    |
    168 km (105 mi) distance
    | USGS | Details
  • 02 Jun 1981 02:31 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    169 km (105 mi) distance
    | USGS | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14286 km (8877 mi) distance
    | | Details
  • 01 Jan 1970 00:00 UTC
    | M |
    0 km (0 mi) depth
    |
    14286 km (8877 mi) distance
    | | Details
  • 26 May 1981 04:46 UTC
    | M 4.7 |
    17.6 km (10.9 mi) depth
    |
    44 km (28 mi) distance
    | USGS | Details
  • 13 Apr 1981 03:04 UTC
    | M 5.7 |
    28 km (17.4 mi) depth
    |
    164 km (102 mi) distance
    | USGS | Details
  • 05 Apr 1981 09:27 UTC
    | M 4.7 |
    37.3 km (23.2 mi) depth
    |
    59 km (37 mi) distance
    | USGS | Details
  • 02 Apr 1981 12:58 UTC
    | M 4.5 |
    24 km (14.9 mi) depth
    |
    139 km (86 mi) distance
    | USGS | Details
  • Show all

Earlier earthquakes in the same area

Strong mag. 6.9 earthquake - Near the East Coast of Honshu, Japan on Sunday, 18 January 1981
 

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