Strong mag. 6.6 earthquake - North Pacific Ocean, 148 km east of Hachinohe, Aomori, Japan, on Friday, 24 May 1968 at 14:06 (GMT)
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Strong magnitude 6.6 earthquake at 28 km depth
Magnitude: 6.6
Depth: 27.6 km
Epicenter latitude / longitude: 40.881°N / 143.178°E

Nearest volcano: Osore-yama (186 km / 116 mi)
Nearby towns and cities:
148 km (92 mi) ENE of Hachinohe (pop: 239,000) --> See nearby quakes!
152 km (95 mi) E of Misawa (pop: 42,800) --> See nearby quakes!
171 km (106 mi) ESE of Mutsu (pop: 49,200) --> See nearby quakes!
173 km (107 mi) NE of Miyako (pop: 51,700) --> See nearby quakes!
206 km (128 mi) E of Aomori (pop: 298,400) --> See nearby quakes!
216 km (135 mi) NE of Morioka (pop: 295,200) --> See nearby quakes!
226 km (141 mi) S of Obihiro (pop: 173,900) --> See nearby quakes!
227 km (141 mi) ESE of Hakodate (pop: 275,700) --> See nearby quakes!
286 km (178 mi) SSE of Sapporo (pop: 1,883,000) --> See nearby quakes!
653 km (406 mi) NNE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 atomic bombs!) More info
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.
Magnitude | Depth | Location | Source |
M 6.6 | 28 km | off the east coast of Honshu, Japan | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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There are no user reports for this quake yet. If you felt it Aftershocks of the 6.6 quake North Pacific Ocean, 148 km east of Hachinohe, Aomori, Japan, 24 May 1968 14:06 GMT
More info
Recorded aftershocks, latest first (12 quakes):- 13 Nov 1968 18:41 UTC| M 6.2 |46 km (28.6 mi) depth|85 km (53 mi) distance| USGS | Strong mag. 6.2 earthquake - North Pacific Ocean, 92 km northeast of Miyako, Iwate, Japan, on Wednesday, 13 November 1968 at 18:41 (GMT)
- 11 Nov 1968 14:41 UTC| M 5.9 |27.1 km (16.8 mi) depth|82 km (51 mi) distance| USGS | Details
- 20 Oct 1968 12:21 UTC| M 6.0 |15 km (9.3 mi) depth|107 km (66 mi) distance| USGS | Strong mag. 6.0 earthquake - North Pacific Ocean, 237 km east of Hachinohe, Aomori, Japan, on Sunday, 20 October 1968 at 12:21 (GMT)
- 15 Sep 1968 10:50 UTC| M 6.0 |27.2 km (16.9 mi) depth|14 km (9 mi) distance| USGS | Strong mag. 6.0 earthquake - North Pacific Ocean, 160 km east of Hachinohe, Aomori, Japan, on Sunday, 15 September 1968 at 10:50 (GMT)
- 25 Aug 1968 09:13 UTC| M 5.7 |21.5 km (13.4 mi) depth|94 km (58 mi) distance| USGS | Details
- 25 Aug 1968 09:07 UTC| M 5.7 |21 km (13 mi) depth|89 km (55 mi) distance| USGS | Details
- 23 Jul 1968 23:02 UTC| M 6.0 |26.7 km (16.6 mi) depth|61 km (38 mi) distance| USGS | Strong mag. 6.0 earthquake - North Pacific Ocean, 170 km east of Hachinohe, Aomori, Japan, on Tuesday, 23 July 1968 at 23:02 (GMT)
- 10 Jul 1968 20:40 UTC| M 5.9 |20 km (12.4 mi) depth|79 km (49 mi) distance| USGS | Details
- 22 Jun 1968 01:12 UTC| M 6.1 |18.2 km (11.3 mi) depth|73 km (45 mi) distance| USGS | Strong mag. 6.1 earthquake - North Pacific Ocean, 192 km east of Hachinohe, Aomori, Japan, on Saturday, 22 June 1968 at 01:12 (GMT)
- 17 Jun 1968 11:53 UTC| M 6.3 |37.6 km (23.4 mi) depth|20 km (13 mi) distance| USGS | Strong mag. 6.3 earthquake - North Pacific Ocean, 160 km northeast of Hachinohe, Aomori, Japan, on Monday, 17 June 1968 at 11:53 (GMT)
- 01 Jun 1968 10:31 UTC| M 5.8 |45 km (28 mi) depth|96 km (60 mi) distance| USGS | Details
- 25 May 1968 11:52 UTC| M 6.1 |31.8 km (19.8 mi) depth|79 km (49 mi) distance| USGS | Strong mag. 6.1 earthquake - North Pacific Ocean, 129 km northeast of Miyako, Iwate, Japan, on Saturday, 25 May 1968 at 11:52 (GMT)
Earlier earthquakes in the same area
Strong mag. 6.6 earthquake - North Pacific Ocean, 148 km east of Hachinohe, Aomori, Japan, on Friday, 24 May 1968 at 14:06 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!