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Major magnitude 7.6 earthquake - 25 km northwest of Murakami, Niigata, Japan, on Tuesday, June 16, 1964 at 04:01 GMT

Major magnitude 7.6 earthquake - 25 km northwest of Murakami, Niigata, Japan, on Tuesday, June 16, 1964 at 04:01 GMT Major magnitude 7.6 earthquake - 25 km northwest of Murakami, Niigata, Japan, on Tuesday, June 16, 1964 at 04:01 GMT

Major magnitude 7.6 earthquake at 15 km depth

Earthquake details

Date & timeJun 16, 1964 04:01:43 UTC
Local time at epicenter
StatusConfirmed
Magnitude7.6
Depth15.0 km
Epicenter latitude / longitude38.399°N / 139.29°E (Japan Sea, Japan)
Antipode38.399°S / 40.71°W
Shaking intensitySevere shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoGassan (66 km / 41 mi)
Nearby towns and cities25 km (16 mi) NW of Murakami (pop: 31,300) | Show on map | Quakes nearby
50 km (31 mi) N of Shibata (pop: 80,800) | Show on map | Quakes nearby
59 km (36 mi) SW of Tsuruoka (pop: 99,800) | Show on map | Quakes nearby
68 km (42 mi) NNE of Niitsu (pop: 65,900) | Show on map | Quakes nearby
76 km (47 mi) SW of Sakata (pop: 100,400) | Show on map | Quakes nearby
90 km (56 mi) NW of Yonezawa (pop: 94,500) | Show on map | Quakes nearby
92 km (57 mi) NNE of Sandyo (pop: 82,900) | Show on map | Quakes nearby
96 km (59 mi) W of Yamagata (pop: 254,500) | Show on map | Quakes nearby
138 km (86 mi) W of Sendai (pop: 1,063,100) | Show on map | Quakes nearby
303 km (189 mi) N of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby
Estimated seismic energy released1.6 x 1016 joules (4402 gigawatt hours, equivalent to 3.8 x 106 tons of TNT or 236.7 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.
Mag.DepthLocationSource
7.615 kmnear the west 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.

Aftershocks

[More info]

Recorded aftershocks, latest first (17 quakes)

Date and timeMag
Depth
LocationDetails
Apr 3, 1966 04:43
57 years ago
5.7

49 km
42 km E of Hitachi, Ibaraki, JapanMore
Jan 20, 1966 01:44
57 years ago
5.8

10 km
33 km SW of Ryōtsu-minato, Sado Shi, Niigata, JapanMore
Nov 14, 1965 05:54
57 years ago
5.7

40 km
53 km E of Hitachi, Ibaraki, JapanMore
Sep 25, 1965 14:53
57 years ago
5.7

28 km
121 km E of Miyako, Iwate, JapanMore
Sep 22, 1965 22:08
57 years ago
6.3

35 km
77 km SE of Kitaibaraki, JapanMore
Sep 17, 1965 16:21
57 years ago
6.8

35 km
73 km SE of Hitachi, Ibaraki, JapanMore
Sep 17, 1965 15:18
57 years ago
5.9

35 km
85 km NE of Hasaki, Chōshi-shi, Chiba, JapanMore
Sep 17, 1965 14:22
57 years ago
5.8

35 km
87 km NE of Hasaki, Chōshi-shi, Chiba, JapanMore
Apr 6, 1965 05:31
58 years ago
5.7

50 km
3.7 km S of Ishige, Jōsō-shi, Ibaraki, JapanMore
Feb 16, 1965 12:24
58 years ago
5.7

54 km
37 km SE of Ofunato, Ōfunato-shi, Iwate, JapanMore
Dec 10, 1964 15:11
58 years ago
6.3

30 km
80 km W of Noshiro, Akita, JapanMore
Nov 27, 1964 13:47
58 years ago
6.0

15 km
23 km S of Ryōtsu-minato, Sado Shi, Niigata, JapanMore
Jul 12, 1964 01:45
59 years ago
6.0

13 km
46 km W of Tsuruoka, Yamagata, JapanMore
Jun 19, 1964 10:05
59 years ago
5.7

18 km
29 km W of Tsuruoka, Yamagata, JapanMore
Jun 16, 1964 07:14
59 years ago
6.2

15 km
21 km NW of Murakami, Niigata, JapanMore
Jun 16, 1964 06:53
59 years ago
6.5

10 km
55 km W of Tsuruoka, Yamagata, JapanMore
Jun 16, 1964 04:17
59 years ago
5.7

15 km
55 km W of Tsuruoka, Yamagata, JapanMore

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