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Very strong mag. 6.3 earthquake - 446 km northeast of Tokyo, Japan, on Friday, April 11, 1958 at 00:58 GMT

Very strong mag. 6.3 earthquake - 446 km northeast of Tokyo, Japan, on Friday, April 11, 1958 at 00:58 GMT Very strong mag. 6.3 earthquake - 446 km northeast of Tokyo, Japan, on Friday, April 11, 1958 at 00:58 GMT

Very strong magnitude 6.3 earthquake at 20 km depth

Earthquake details

Date & timeApr 11, 1958 00:58:17 UTC
Local time at epicenter
Depth20.0 km
Epicenter latitude / longitude38.58°N / 143.175°E (North Pacific Ocean, Japan)
Antipode38.58°S / 36.825°W
Shaking intensityStrong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoKurikoma (211 km / 131 mi)
Nearby towns and cities137 km (85 mi) SE of Kamaishi (pop: 43,100) | Show on map | Quakes nearby
138 km (86 mi) ESE of Ofunato (pop: 35,400) | Show on map | Quakes nearby
159 km (99 mi) SE of Miyako (pop: 51,700) | Show on map | Quakes nearby
164 km (102 mi) E of Ishinomaki (pop: 117,200) | Show on map | Quakes nearby
181 km (112 mi) E of Ichinoseki (pop: 63,000) | Show on map | Quakes nearby
193 km (120 mi) E of Furukawa (pop: 76,300) | Show on map | Quakes nearby
195 km (121 mi) ESE of Kitakami (pop: 93,900) | Show on map | Quakes nearby
199 km (124 mi) ESE of Hanamaki (pop: 73,100) | Show on map | Quakes nearby
446 km (277 mi) NE of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby
470 km (292 mi) NE of Yokohama (pop: 3,574,400) | Show on map | Quakes nearby
Estimated seismic energy released1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 atomic bombs!) | about seismic energy
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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.
6.320 kmoff the east coast of Honshu, JapanUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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Recorded aftershocks, latest first (0 quake)

So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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