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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.
Mag.DepthLocationSource
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

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