Moderate mag. 4.8 earthquake - 43 km southwest of Noshiro, Akita, Japan, on Sunday, September 18, 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||Sep 18, 1983 13:12:39 UTC|
|Local time at epicenter|
|Epicenter latitude / longitude||39.961°N / 139.634°E (Japan Sea, Japan)|
|Antipode||39.961°S / 40.366°W|
|Shaking intensity||Light shaking near epicenter|
|Primary data source||USGS (United States Geological Survey)|
|Nearest volcano||Megata (8 km / 5 mi)|
|Nearby towns and cities||475 km (295 mi) N of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby|
|Estimated seismic energy released||1 x 1012 joules (278 megawatt hours, equivalent to 239 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.
|4.8||41 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.