Strong mag. 6.3 earthquake - North Pacific Ocean, 228 km east of Hachinohe, Aomori, Japan, on Friday, 17 May 1968 at 16:02 (GMT)
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Strong magnitude 6.3 earthquake at 20 km depth
Magnitude: 6.3
Depth: 20.0 km
Epicenter latitude / longitude: 40.699°N / 144.192°E
(North Pacific Ocean, Japan)Nearby towns and cities:
224 km (139 mi) ENE of Miyako (pop: 51,700) --> See nearby quakes!
228 km (142 mi) E of Hachinohe (pop: 239,000) --> See nearby quakes!
236 km (147 mi) E of Misawa (pop: 42,800) --> See nearby quakes!
254 km (158 mi) S of Kushiro (pop: 183,600) --> See nearby quakes!
258 km (160 mi) ESE of Mutsu (pop: 49,200) --> See nearby quakes!
260 km (162 mi) SSE of Obihiro (pop: 173,900) --> See nearby quakes!
281 km (175 mi) ENE of Morioka (pop: 295,200) --> See nearby quakes!
292 km (181 mi) E of Aomori (pop: 298,400) --> See nearby quakes!
353 km (219 mi) SE of Sapporo (pop: 1,883,000) --> See nearby quakes!
682 km (424 mi) NNE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 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 6.3 | 20 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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Aftershocks of the 6.3 quake North Pacific Ocean, 228 km east of Hachinohe, Aomori, Japan, 17 May 1968 16:02 GMT
More info
Recorded aftershocks, latest first (2 quakes):- 20 Oct 1968 12:21 UTC| M 6.0 |15 km (9.3 mi) depth|31 km (19 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)
- 22 Jun 1968 01:12 UTC| M 6.1 |18.2 km (11.3 mi) depth|48 km (30 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)
Earlier earthquakes in the same area
Strong mag. 6.3 earthquake - North Pacific Ocean, 228 km east of Hachinohe, Aomori, Japan, on Friday, 17 May 1968 at 16:02 (GMT)
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