Major magnitude 7.3 earthquake - North Pacific Ocean, 378 km northeast of Tokyo, Japan, on Thursday, April 12, 1962 at 00:52 (GMT)

Major magnitude 7.3 earthquake - North Pacific Ocean, 378 km northeast of Tokyo, Japan, on Thursday, April 12, 1962 at 00:52 (GMT)

Major magnitude 7.3 earthquake at 28 km depth

Date & time: Apr 12, 1962 00:52:44 UTC
Magnitude: 7.3
Depth: 28.0 km
Epicenter latitude / longitude: 38.022°N / 142.789°E (North Pacific Ocean, Japan)
Antipode: 38.022°S / 37.211°W
Nearest volcano: Adachi (188 km / 117 mi)
Nearby towns and cities:
137 km (85 mi) ESE of Ishinomaki (pop: 117,200) --> See nearby quakes!
157 km (98 mi) E of Shiogama (pop: 59,500) --> See nearby quakes!
161 km (100 mi) SSE of Kamaishi (pop: 43,100) --> See nearby quakes!
170 km (106 mi) E of Sendai (pop: 1,063,100) --> See nearby quakes!
171 km (106 mi) ESE of Furukawa (pop: 76,300) --> See nearby quakes!
175 km (109 mi) SE of Ichinoseki (pop: 63,000) --> See nearby quakes!
190 km (118 mi) SE of Mizusawa (pop: 61,300) --> See nearby quakes!
200 km (124 mi) NE of Iwaki (pop: 357,300) --> See nearby quakes!
378 km (235 mi) NE of Tokyo (pop: 8,336,600) --> See nearby quakes!
401 km (249 mi) NE of Yokohama (pop: 3,574,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5.6 x 1015 joules (1562 gigawatt hours, equivalent to 1.3 x 106 tons of TNT or 84 atomic bombs!) More info
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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
7.328 kmnear 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 (13 quakes)

Date and timeMag
Depth
LocationDetails
Feb 7, 1964 12:58
58 years ago
5.8

41 km
North Pacific Ocean, 87 km E of Miyako, Iwate, JapanMore
Feb 5, 1964 11:30
58 years ago
6.0

45 km
North Pacific Ocean, 48 km SE of Hitachi, Ibaraki, JapanMore
Aug 15, 1963 06:11
58 years ago
6.5

35 km
North Pacific Ocean, 95 km SE of Sabusawa-jima Island, JapanMore
Jul 19, 1963 09:00
58 years ago
5.7

25 km
North Pacific Ocean, 78 km SE of Hitachi, Ibaraki, JapanMore
May 8, 1963 10:22
59 years ago
6.2

47 km
North Pacific Ocean, 55 km E of Katsuta, Hitachinaka-shi, Ibaraki, JapanMore
Mar 21, 1963 04:00
59 years ago
5.5

45 km
North Pacific Ocean, 55 km SE of Hitachi, Ibaraki, JapanMore
Dec 27, 1962 18:18
59 years ago
5.7

50 km
North Pacific Ocean, 21 km NE of Miyako, Iwate, JapanMore
Aug 27, 1962 16:20
59 years ago
5.7

30 km
North Pacific Ocean, 389 km NE of Tokyo, JapanMore
Jul 28, 1962 19:42
59 years ago
5.6

25 km
North Pacific Ocean, 241 km NE of Tokyo, JapanMore
Apr 30, 1962 02:26
60 years ago
6.1

15 km
Tome Shi, Honshu-miyagi-ken, 21 km S of Ichinoseki, Iwate, JapanMore
Apr 25, 1962 15:47
60 years ago
6.3

35 km
North Pacific Ocean, 401 km NE of Tokyo, JapanMore
Apr 17, 1962 20:54
60 years ago
5.6

30 km
North Pacific Ocean, 377 km NE of Tokyo, JapanMore
Apr 12, 1962 05:16
60 years ago
5.8

25 km
North Pacific Ocean, 360 km NE of Tokyo, JapanMore

Earlier earthquakes in the same area

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