Moderate mag. 4.8 earthquake - Japan Sea, 43 km southwest of Noshiro, Akita, Japan, on Sunday, 18 September 1983 at 13:12 (GMT)

Moderate mag. 4.8 earthquake - Japan Sea, 43 km southwest of Noshiro, Akita, Japan, on Sunday, 18 September 1983 at 13:12 (GMT)

Moderate magnitude 4.8 earthquake at 41 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: 18 Sep 1983 13:12:39 UTC
Magnitude: 4.8
Depth: 41.2 km
Epicenter latitude / longitude: 39.961°N / 139.634°E (Japan Sea, Japan)
Nearest volcano: Megata (8 km / 5 mi)
Nearby towns and cities:
29 km (18 mi) WNW of Tennō (Katagami) (pop: 22,700) --> See nearby quakes!
43 km (27 mi) SW of Noshiro (pop: 51,100) --> See nearby quakes!
49 km (31 mi) WNW of Akita (pop: 320,100) --> See nearby quakes!
69 km (43 mi) WSW of Takanosu (Kitaakita) (pop: 20,500) --> See nearby quakes!
86 km (53 mi) WSW of Ōdate (pop: 64,500) --> See nearby quakes!
90 km (56 mi) WNW of Kakunodatemachi (Semboku) (pop: 14,100) --> See nearby quakes!
92 km (57 mi) NW of Ōmagari (pop: 38,800) --> See nearby quakes!
133 km (82 mi) WNW of Morioka (pop: 295,200) --> See nearby quakes!
216 km (134 mi) NNW of Sendai (pop: 1,063,100) --> See nearby quakes!
475 km (295 mi) N of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1 x 1012 joules (278 megawatt hours, equivalent to 239 tons of TNT) More info
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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
4.841 kmnear the west coast of 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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