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Very strong mag. 6.6 earthquake - 121 km east of Miyako, Iwate, Japan, on Sunday, October 26, 1952 at 15:46 GMT

Very strong mag. 6.6 earthquake - 121 km east of Miyako, Iwate, Japan, on Sunday, October 26, 1952 at 15:46 GMT

Very strong magnitude 6.6 earthquake at 28 km depth

Date & time: Oct 26, 1952 15:46:19 UTC
Magnitude: 6.6
Depth: 27.8 km
Epicenter latitude / longitude: 39.515°N / 143.336°E (North Pacific Ocean, Japan)
Antipode: 39.515°S / 36.664°W
Nearest volcano: Nanashigure (200 km / 124 mi)
Nearby towns and cities:
119 km (74 mi) E of Yamada (Shimohei-gun) (pop: 20,100) --> See nearby quakes!
121 km (75 mi) E of Miyako (pop: 51,700) --> See nearby quakes!
129 km (80 mi) ENE of Kamaishi (pop: 43,100) --> See nearby quakes!
148 km (92 mi) ENE of Ofunato (pop: 35,400) --> See nearby quakes!
188 km (117 mi) E of Morioka (pop: 295,200) --> See nearby quakes!
191 km (119 mi) SE of Hachinohe (pop: 239,000) --> See nearby quakes!
191 km (119 mi) E of Hanamaki (pop: 73,100) --> See nearby quakes!
192 km (120 mi) E of Kitakami (pop: 93,900) --> See nearby quakes!
428 km (266 mi) SSE of Sapporo (pop: 1,883,000) --> See nearby quakes!
533 km (331 mi) NE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 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.
Mag.DepthLocationSource
6.628 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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Aftershocks

[More info]

Recorded aftershocks, latest first (8 quakes)

Date and timeMag
Depth		LocationDetails
Oct 31, 1952 16:37
70 years ago
6.5

20 km		144 km SE of Miyako, Iwate, JapanMore
Oct 28, 1952 16:45
70 years ago
6.0

15 km		131 km E of Miyako, Iwate, JapanMore
Oct 28, 1952 06:31
70 years ago
6.3

15 km		120 km E of Miyako, Iwate, JapanMore
Oct 27, 1952 03:17
70 years ago
6.5

23 km		109 km E of Miyako, Iwate, JapanMore
Oct 26, 1952 20:27
70 years ago
5.9

23 km		139 km E of Miyako, Iwate, JapanMore
Oct 26, 1952 19:19
70 years ago
6.3

24 km		107 km E of Miyako, Iwate, JapanMore
Oct 26, 1952 18:02
70 years ago
6.5

25 km		144 km E of Miyako, Iwate, JapanMore
Oct 26, 1952 15:53
70 years ago
6.5

28 km		100 km E of Miyako, Iwate, JapanMore

Earlier earthquakes in the same area

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