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Strong mag. 6.4 earthquake - Kitaakita-shi, 17 km west of Ōdate, Akita, Japan, on Thursday, March 28, 1985 at 16:07 GMT

Strong mag. 6.4 earthquake - Kitaakita-shi, 17 km west of Ōdate, Akita, Japan, on Thursday, March 28, 1985 at 16:07 GMT

Strong magnitude 6.4 earthquake at 166 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Mar 28, 1985 16:07:06 UTC
Magnitude: 6.4
Depth: 166.3 km
Epicenter latitude / longitude: 40.31°N / 140.362°E (Kitaakita-shi, Akita, Japan)
Antipode: 40.31°S / 39.638°W
Nearest volcano: Daira-Komaga-take (14 km / 9 mi)
Nearby towns and cities:
10 km (6 mi) N of Takanosu (Kitaakita) (pop: 20,500) --> See nearby quakes!
17 km (11 mi) WNW of Ōdate (pop: 64,500) --> See nearby quakes!
31 km (19 mi) ENE of Noshiro (pop: 51,100) --> See nearby quakes!
33 km (20 mi) SSW of Hirosaki (Aomori) (pop: 175,000) --> See nearby quakes!
39 km (24 mi) WNW of Hanawa (Kazuno) (pop: 36,900) --> See nearby quakes!
42 km (26 mi) SSW of Kuroishi (Aomori) (pop: 38,600) --> See nearby quakes!
49 km (30 mi) SSW of Namioka (Aomori) (pop: 20,700) --> See nearby quakes!
69 km (43 mi) NNE of Akita (pop: 320,100) --> See nearby quakes!
317 km (197 mi) SSW of Sapporo (Hokkaido) (pop: 1,883,000) --> See nearby quakes!
517 km (321 mi) N of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) | about seismic energy
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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.
6.4166 kmeastern 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.
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Recorded aftershocks, latest first (0 quake)

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