Moderate mag. 5.0 earthquake - 91 km northwest of Noshiro, Akita, Japan, on Friday, September 23, 1983 at 11:36 GMT
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Moderate magnitude 5.0 earthquake at 25 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
|Date & time||Sep 23, 1983 11:36:59 UTC|
|Local time at epicenter|
|Epicenter latitude / longitude||40.742°N / 139.213°E (Japan Sea, Japan)|
|Antipode||40.742°S / 40.787°W|
|Shaking intensity||Light shaking near epicenter|
|Primary data source||USGS (United States Geological Survey)|
|Nearest volcano||Oshima-Ko-jima (85 km / 53 mi)|
|Nearby towns and cities||91 km (57 mi) NW of Noshiro (pop: 51,100) | Show on map | Quakes nearby|
98 km (61 mi) W of Shimokizukuri (Tsugaru) (pop: 18,900) | Show on map | Quakes nearby
104 km (64 mi) W of Goshogawara (pop: 49,100) | Show on map | Quakes nearby
108 km (67 mi) W of Hirosaki (pop: 175,000) | Show on map | Quakes nearby
125 km (78 mi) WNW of Ōdate (pop: 64,500) | Show on map | Quakes nearby
128 km (80 mi) W of Aomori (pop: 298,400) | Show on map | Quakes nearby
137 km (85 mi) NW of Akita (pop: 320,100) | Show on map | Quakes nearby
201 km (125 mi) NW of Morioka (pop: 295,200) | Show on map | Quakes nearby
313 km (195 mi) SW of Sapporo (pop: 1,883,000) | Show on map | Quakes nearby
564 km (350 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.
|5.0||25 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.
Recorded aftershocks, latest first (0 quake)
So far, no aftershocks have been registered.