Moderate mag. 4.7 earthquake - Japan Sea, 92 km west of Noshiro, Akita, Japan, on Wednesday, 20 July 1983 at 21:11 (GMT)
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Moderate magnitude 4.7 earthquake at 33 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 33.0 km
Epicenter latitude / longitude: 40.082°N / 138.962°E (Japan Sea, Japan)
Nearest volcano: Megata (67 km / 42 mi)
Nearby towns and cities:
88 km (55 mi) WNW of Tennō (Katagami) (pop: 22,700) --> See nearby quakes!
92 km (57 mi) W of Noshiro (pop: 51,100) --> See nearby quakes!
107 km (66 mi) WNW of Akita (pop: 320,100) --> See nearby quakes!
137 km (85 mi) W of Ōdate (pop: 64,500) --> See nearby quakes!
140 km (87 mi) WSW of Hirosaki (pop: 175,000) --> See nearby quakes!
151 km (94 mi) NNW of Sakata (pop: 100,400) --> See nearby quakes!
171 km (106 mi) WSW of Aomori (pop: 298,400) --> See nearby quakes!
191 km (119 mi) WNW of Morioka (pop: 295,200) --> See nearby quakes!
387 km (240 mi) SSW of Sapporo (pop: 1,883,000) --> See nearby quakes!
493 km (306 mi) N of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 tons of TNT) More info
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.
|4.7||33 km||eastern Sea of Japan||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.