Moderate mag. 4.7 earthquake - 87 km west of Noshiro, Akita, Japan, on Sunday, June 12, 1983 at 03:00 GMT

Moderate magnitude 4.7 earthquake at 33 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.

Earthquake details

Date & time	Jun 12, 1983 03:00:11 UTC
Local time at epicenter
Status	Confirmed
Magnitude	4.7
Depth	33.0 km
Epicenter latitude / longitude	40.232°N / 139.002°E (Japan Sea, Japan)
Antipode	40.232°S / 40.998°W
Shaking intensity	Light shaking near epicenter
Felt	0 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Megata (69 km / 43 mi)
Nearby towns and cities	87 km (54 mi) W of Noshiro (pop: 51,100) \| Show on map \| Quakes nearby 90 km (56 mi) WNW of Tennō (Katagami) (pop: 22,700) \| Show on map \| Quakes nearby 111 km (69 mi) WNW of Akita (pop: 320,100) \| Show on map \| Quakes nearby 131 km (81 mi) WSW of Hirosaki (pop: 175,000) \| Show on map \| Quakes nearby 132 km (82 mi) W of Ōdate (pop: 64,500) \| Show on map \| Quakes nearby 160 km (100 mi) WSW of Aomori (pop: 298,400) \| Show on map \| Quakes nearby 164 km (102 mi) NNW of Sakata (pop: 100,400) \| Show on map \| Quakes nearby 192 km (120 mi) WNW of Morioka (pop: 295,200) \| Show on map \| Quakes nearby 271 km (169 mi) NW of Sendai (pop: 1,063,100) \| Show on map \| Quakes nearby 509 km (316 mi) N of Tokyo (pop: 8,336,600) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	7.1 x 10¹¹ joules (197 megawatt hours, equivalent to 169 tons of TNT) \| 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.	Depth	Location	Source
4.7	33 km	near the west coast of Honshu, Japan	USGS

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User reports for this quake

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