Strong mag. 5.3 earthquake - Japan Sea, 87 km northwest of Noshiro, Akita, Japan, on Friday, 23 September 1983 at 11:20 (GMT)
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Strong magnitude 5.3 earthquake at 23 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 22.9 km
Epicenter latitude / longitude: 40.748°N / 139.284°E (Japan Sea, Japan)
Nearest volcano: Oshima-Ko-jima (81 km / 50 mi)
Nearby towns and cities:
87 km (54 mi) NW of Noshiro (pop: 51,100) --> See nearby quakes!
92 km (57 mi) W of Shimokizukuri (Tsugaru) (pop: 18,900) --> See nearby quakes!
98 km (61 mi) W of Goshogawara (pop: 49,100) --> See nearby quakes!
102 km (63 mi) W of Hirosaki (pop: 175,000) --> See nearby quakes!
110 km (68 mi) W of Kuroishi (pop: 38,600) --> See nearby quakes!
120 km (75 mi) WNW of Ōdate (pop: 64,500) --> See nearby quakes!
122 km (76 mi) W of Aomori (pop: 298,400) --> See nearby quakes!
135 km (84 mi) NNW of Akita (pop: 320,100) --> See nearby quakes!
309 km (192 mi) SW of Sapporo (pop: 1,883,000) --> See nearby quakes!
564 km (350 mi) N of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5.6 x 1012 joules (1.56 gigawatt hours, equivalent to 1344 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.
|5.3||23 km||near the west coast of Honshu, Japan||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
More infoRecorded aftershocks, latest first (1 quakes):
- 23 Sep 1983 11:36 UTC| M 5.0 |24.9 km (15.5 mi) depth|6 km (4 mi) distance| USGS | Details