Moderate mag. 4.6 earthquake - 91 km west of Noshiro, Akita, Japan, on Saturday, June 11, 1983 at 06:14 GMT

Moderate magnitude 4.6 earthquake at 33 km depth

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

Earthquake details

Date & time	Jun 11, 1983 06:14:54 UTC
Local time at epicenter
Status	Confirmed
Magnitude	4.6
Depth	33.0 km
Epicenter latitude / longitude	40°N / 138.989°E (Japan Sea, Japan)
Antipode	40°S / 41.011°W
Shaking intensity	Light shaking near epicenter
Felt	0 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Megata (63 km / 39 mi)
Nearby towns and cities	84 km (52 mi) W of Tennō (Katagami) (pop: 22,700) \| Show on map \| Quakes nearby 91 km (57 mi) WSW of Noshiro (pop: 51,100) \| Show on map \| Quakes nearby 101 km (63 mi) WNW of Akita (pop: 320,100) \| Show on map \| Quakes nearby 142 km (88 mi) NNW of Sakata (pop: 100,400) \| Show on map \| Quakes nearby 142 km (88 mi) WSW of Hirosaki (pop: 175,000) \| Show on map \| Quakes nearby 159 km (99 mi) NNW of Tsuruoka (pop: 99,800) \| Show on map \| Quakes nearby 173 km (108 mi) WSW of Aomori (pop: 298,400) \| Show on map \| Quakes nearby 188 km (117 mi) W of Morioka (pop: 295,200) \| Show on map \| Quakes nearby 252 km (156 mi) NW of Sendai (pop: 1,063,100) \| Show on map \| Quakes nearby 483 km (300 mi) N of Tokyo (pop: 8,336,600) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	5 x 10¹¹ joules (139 megawatt hours, equivalent to 120 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
4.6	33 km	eastern Sea of Japan	USGS

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User reports for this quake

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