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Very strong mag. 6.5 earthquake - 112 km east of Miyako, Iwate, Japan, on Thursday, May 16, 1968 at 23:04 GMT

Very strong mag. 6.5 earthquake - 112 km east of Miyako, Iwate, Japan, on Thursday, May 16, 1968 at 23:04 GMT Very strong mag. 6.5 earthquake - 112 km east of Miyako, Iwate, Japan, on Thursday, May 16, 1968 at 23:04 GMT

Very strong magnitude 6.5 earthquake at 43 km depth

Date & time: May 16, 1968 23:04:58 UTC
Magnitude: 6.5
Depth: 43.0 km
Epicenter latitude / longitude: 39.808°N / 143.233°E (North Pacific Ocean, Japan)
Antipode: 39.808°S / 36.767°W
Nearest volcano: Nanashigure (183 km / 114 mi)
Nearby towns and cities:
112 km (70 mi) E of Miyako (pop: 51,700) --> See nearby quakes!
116 km (72 mi) ENE of Yamada (Shimohei-gun) (pop: 20,100) --> See nearby quakes!
131 km (81 mi) ENE of Kamaishi (pop: 43,100) --> See nearby quakes!
166 km (103 mi) ESE of Hachinohe (pop: 239,000) --> See nearby quakes!
179 km (111 mi) E of Morioka (pop: 295,200) --> See nearby quakes!
187 km (116 mi) ENE of Hanamaki (pop: 73,100) --> See nearby quakes!
191 km (118 mi) ENE of Kitakami (pop: 93,900) --> See nearby quakes!
195 km (121 mi) ENE of Mizusawa (pop: 61,300) --> See nearby quakes!
395 km (245 mi) SSE of Sapporo (pop: 1,883,000) --> See nearby quakes!
554 km (344 mi) NNE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 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
6.543 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 (20 quakes)

Date and timeMag
Depth
LocationDetails
Nov 11, 1968 14:41
54 years ago
5.9

27 km
141 km NE of Miyako, Iwate, JapanMore
Aug 25, 1968 09:13
54 years ago
5.7

22 km
132 km E of Miyako, Iwate, JapanMore
Aug 25, 1968 09:07
54 years ago
5.7

21 km
137 km NE of Miyako, Iwate, JapanMore
Jul 23, 1968 23:02
54 years ago
6.0

27 km
215 km E of Morioka, Iwate, JapanMore
Jul 12, 1968 03:56
54 years ago
6.0

20 km
115 km E of Miyako, Iwate, JapanMore
Jul 12, 1968 00:44
54 years ago
6.0

22 km
112 km E of Miyako, Iwate, JapanMore
Jul 10, 1968 20:40
54 years ago
5.9

20 km
145 km NE of Miyako, Iwate, JapanMore
Jun 25, 1968 23:33
54 years ago
5.8

21 km
141 km E of Miyako, Iwate, JapanMore
Jun 22, 1968 01:12
54 years ago
6.1

18 km
236 km E of Morioka, Iwate, JapanMore
Jun 14, 1968 11:52
54 years ago
5.7

25 km
497 km NE of Tokyo, JapanMore
Jun 13, 1968 21:10
54 years ago
6.2

30 km
99 km E of Yamada, Shimohei-gun, Iwate, JapanMore
Jun 13, 1968 11:56
54 years ago
5.6

30 km
116 km E of Miyako, Iwate, JapanMore
Jun 12, 1968 21:57
54 years ago
6.3

28 km
500 km NE of Tokyo, JapanMore
Jun 12, 1968 13:41
54 years ago
7.0

32 km
98 km E of Miyako, Iwate, JapanMore
Jun 1, 1968 10:31
54 years ago
5.8

45 km
78 km NE of Miyako, Iwate, JapanMore
May 25, 1968 11:52
54 years ago
6.1

32 km
129 km NE of Miyako, Iwate, JapanMore
May 22, 1968 19:29
54 years ago
6.0

49 km
83 km NE of Miyako, Iwate, JapanMore
May 20, 1968 03:16
54 years ago
5.9

15 km
253 km E of Morioka, Iwate, JapanMore
May 17, 1968 18:17
54 years ago
6.1

35 km
122 km E of Miyako, Iwate, JapanMore
May 17, 1968 10:42
54 years ago
6.1

28 km
135 km E of Miyako, Iwate, JapanMore

Earlier earthquakes in the same area

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