Very strong mag. 6.4 earthquake - 147 km east of Kamaishi, Iwate, Japan, on Sunday, April 23, 1933 at 07:13 GMT
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Very strong magnitude 6.4 earthquake at 15 km depth
Magnitude: 6.4
Depth: 15.0 km
Epicenter latitude / longitude: 39.098°N / 143.557°E

Antipode: 39.098°S / 36.443°W
Nearest volcano: Iwate (235 km / 146 mi)
Nearby towns and cities:
144 km (90 mi) ESE of Yamada (Shimohei-gun) (pop: 20,100) --> See nearby quakes!
146 km (91 mi) E of Ōtsuchi (Kamihei-gun) (pop: 16,500) --> See nearby quakes!
147 km (91 mi) E of Kamaishi (pop: 43,100) --> See nearby quakes!
152 km (94 mi) ESE of Miyako (pop: 51,700) --> See nearby quakes!
159 km (99 mi) E of Ofunato (pop: 35,400) --> See nearby quakes!
176 km (109 mi) E of Tōno (pop: 26,800) --> See nearby quakes!
217 km (135 mi) ESE of Morioka (pop: 295,200) --> See nearby quakes!
251 km (156 mi) ENE of Sendai (pop: 1,063,100) --> See nearby quakes!
510 km (317 mi) NE of Tokyo (pop: 8,336,600) --> See nearby quakes!
523 km (325 mi) NE of Kawasaki (pop: 1,306,800) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) | 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 |
6.4 | 15 km | off the east 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.
Aftershocks
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Recorded aftershocks, latest first (0 quake)
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