Very strong mag. 6.5 earthquake - 2.1 km west of Kumagaya, Saitama, Japan, on Monday, September 21, 1931 at 02:20 (GMT)
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Very strong magnitude 6.5 earthquake at 15 km depth
Depth: 15.0 km
Epicenter latitude / longitude: 36.131°N / 139.367°E↗ (Kumagaya, Saitama, Japan)
Antipode: 36.131°S / 40.633°W↗
Nearest volcano: Akagi (50 km / 31 mi)
Nearby towns and cities:
2 km (1 mi) WSW of Kumagaya (pop: 155,800) --> See nearby quakes!
8 km (5 mi) W of Gyōda (pop: 86,300) --> See nearby quakes!
11 km (7 mi) SE of Fukayachō (pop: 106,600) --> See nearby quakes!
15 km (9 mi) WNW of Kōnosu (pop: 88,500) --> See nearby quakes!
15 km (10 mi) WSW of Hanyū (pop: 58,700) --> See nearby quakes!
19 km (12 mi) N of Sakado (pop: 96,700) --> See nearby quakes!
27 km (17 mi) NNW of Kawagoe (pop: 337,900) --> See nearby quakes!
36 km (22 mi) NW of Saitama (pop: 1,193,400) --> See nearby quakes!
57 km (36 mi) NNW of Tokyo (pop: 8,336,600) --> See nearby quakes!
82 km (51 mi) NNW of Yokohama (Kanagawa) (pop: 3,574,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 atomic bombs!) 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.
|6.5||15 km||eastern 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 quakes)
So far, no aftershocks have been registered.