Moderate mag. 5.0 earthquake - 92 km west of Noshiro, Akita, Japan, on Monday, July 25, 1983 at 23:17 GMT
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Moderate magnitude 5.0 earthquake at 33 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Earthquake details
| Date & time | Jul 25, 1983 23:17:44 UTC |
| Local time at epicenter | |
| Status | Confirmed |
| Magnitude | 5 |
| Depth | 33.0 km |
| Epicenter latitude / longitude | 40.153°N / 138.945°E  (Japan Sea, Japan) |
| Antipode | 40.153°S / 41.055°W |
| Shaking intensity | Light shaking near epicenter |
| Felt | 0 reports |
| Primary data source | USGS (United States Geological Survey) |
| Nearest volcano | Megata (71 km / 44 mi) |
| Nearby towns and cities | 91 km (57 mi) WNW of Tennō (Katagami) (pop: 22,700) | Show on map | Quakes nearby 92 km (57 mi) W of Noshiro (pop: 51,100) | Show on map | Quakes nearby 111 km (69 mi) WNW of Akita (pop: 320,100) | Show on map | Quakes nearby 138 km (86 mi) W of Ōdate (pop: 64,500) | Show on map | Quakes nearby 138 km (86 mi) WSW of Hirosaki (pop: 175,000) | Show on map | Quakes nearby 158 km (98 mi) NNW of Sakata (pop: 100,400) | Show on map | Quakes nearby 168 km (105 mi) WSW of Aomori (pop: 298,400) | Show on map | Quakes nearby 195 km (121 mi) WNW of Morioka (pop: 295,200) | Show on map | Quakes nearby 267 km (166 mi) NW of Sendai (pop: 1,063,100) | Show on map | Quakes nearby 501 km (311 mi) N of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby |
| Estimated seismic energy released | 2 x 1012 joules (554 megawatt hours, equivalent to 477 tons of TNT) | about seismic energy |
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 |
| 5.0 | 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.
Aftershocks
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