Very strong mag. 6.4 earthquake - 201 km east of Hachinohe, Aomori, Japan, on Friday, October 27, 1989 at 01:45 GMT

Very strong mag. 6.4 earthquake - 201 km east of Hachinohe, Aomori, Japan, on Friday, October 27, 1989 at 01:45 GMT Very strong mag. 6.4 earthquake - 201 km east of Hachinohe, Aomori, Japan, on Friday, October 27, 1989 at 01:45 GMT

Very strong magnitude 6.4 earthquake at 9 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.

Earthquake details

Date & timeOct 27, 1989 01:45:55 UTC
Local time at epicenter
StatusConfirmed
Magnitude6.4
Depth9.1 km
Epicenter latitude / longitude39.823°N / 143.692°E (North Pacific Ocean, Japan)
Antipode39.823°S / 36.308°W
Shaking intensityVery strong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoNanashigure (222 km / 138 mi)
Nearby towns and cities151 km (94 mi) E of Miyako (pop: 51,700) | Show on map | Quakes nearby
154 km (96 mi) ENE of Yamada (Shimohei-gun) (pop: 20,100) | Show on map | Quakes nearby
162 km (101 mi) ENE of Ōtsuchi (Kamihei-gun) (pop: 16,500) | Show on map | Quakes nearby
168 km (104 mi) ENE of Kamaishi (pop: 43,100) | Show on map | Quakes nearby
189 km (118 mi) ENE of Ofunato (pop: 35,400) | Show on map | Quakes nearby
193 km (120 mi) ENE of Tōno (pop: 26,800) | Show on map | Quakes nearby
201 km (125 mi) ESE of Hachinohe (pop: 239,000) | Show on map | Quakes nearby
218 km (135 mi) E of Morioka (pop: 295,200) | Show on map | Quakes nearby
410 km (255 mi) SSE of Sapporo (pop: 1,883,000) | Show on map | Quakes nearby
579 km (360 mi) NE of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby
Estimated seismic energy released2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 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
6.49.1 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 (96 quakes)

Date and timeMag
Depth
LocationDetails
Mar 21, 1990 10:14
32 years ago
4.2

33 km
137 km E of Miyako, Iwate, JapanMore
Mar 14, 1990 18:43
32 years ago
4.6

33 km
76 km E of Miyako, Iwate, JapanMore
Feb 9, 1990 16:24
33 years ago
4.6

23 km
207 km E of Hachinohe, Aomori, JapanMore
Jan 10, 1990 03:11
33 years ago
5.8

37 km
117 km E of Miyako, Iwate, JapanMore
Jan 10, 1990 03:09
33 years ago
5.7

34 km
115 km E of Miyako, Iwate, JapanMore
Dec 17, 1989 08:11
33 years ago
5.2

20 km
120 km E of Miyako, Iwate, JapanMore
Dec 16, 1989 23:25
33 years ago
5.7

22 km
122 km E of Miyako, Iwate, JapanMore
Dec 16, 1989 14:16
33 years ago
4.6

33 km
142 km E of Miyako, Iwate, JapanMore
Dec 16, 1989 12:46
33 years ago
4.9

27 km
133 km E of Miyako, Iwate, JapanMore
Dec 4, 1989 09:18
33 years ago
4.3

33 km
99 km E of Miyako, Iwate, JapanMore
Dec 2, 1989 16:05
33 years ago
4.9

27 km
106 km E of Miyako, Iwate, JapanMore
Dec 2, 1989 13:36
33 years ago
4.5

20 km
117 km E of Miyako, Iwate, JapanMore
Dec 2, 1989 12:50
33 years ago
4.6

23 km
122 km E of Miyako, Iwate, JapanMore
Dec 2, 1989 12:23
33 years ago
4.0

33 km
142 km E of Miyako, Iwate, JapanMore
Dec 2, 1989 12:20
33 years ago
5.4

33 km
78 km E of Miyako, Iwate, JapanMore
Dec 2, 1989 12:19
33 years ago
4.1

33 km
118 km E of Miyako, Iwate, JapanMore
Dec 2, 1989 12:15
33 years ago
5.6

35 km
99 km E of Miyako, Iwate, JapanMore
Nov 29, 1989 20:21
33 years ago
4.5

33 km
128 km E of Miyako, Iwate, JapanMore
Nov 26, 1989 08:43
33 years ago
4.3

33 km
137 km E of Miyako, Iwate, JapanMore
Nov 23, 1989 15:49
33 years ago
5.2

34 km
103 km E of Miyako, Iwate, JapanMore
Nov 21, 1989 10:13
33 years ago
4.9

25 km
103 km E of Miyako, Iwate, JapanMore
Nov 18, 1989 04:50
33 years ago
4.6

29 km
200 km E of Hachinohe, Aomori, JapanMore
Nov 17, 1989 11:57
33 years ago
4.3

26 km
142 km E of Miyako, Iwate, JapanMore
Nov 17, 1989 08:00
33 years ago
4.9

17 km
110 km E of Miyako, Iwate, JapanMore
Nov 15, 1989 18:31
33 years ago
4.8

33 km
96 km E of Miyako, Iwate, JapanMore
Nov 14, 1989 05:49
33 years ago
4.3

33 km
154 km E of Miyako, Iwate, JapanMore
Nov 12, 1989 03:31
33 years ago
4.3

33 km
141 km E of Miyako, Iwate, JapanMore
Nov 11, 1989 04:13
33 years ago
4.5

35 km
146 km E of Miyako, Iwate, JapanMore
Nov 7, 1989 15:13
33 years ago
4.7

33 km
174 km E of Hachinohe, Aomori, JapanMore
Nov 7, 1989 15:00
33 years ago
4.6

33 km
140 km E of Miyako, Iwate, JapanMore
Nov 7, 1989 03:27
33 years ago
4.8

33 km
146 km E of Miyako, Iwate, JapanMore
Nov 7, 1989 00:30
33 years ago
4.8

33 km
126 km E of Miyako, Iwate, JapanMore
Nov 6, 1989 22:04
33 years ago
4.7

33 km
134 km E of Hachinohe, Aomori, JapanMore
Nov 5, 1989 19:24
33 years ago
3.7

28 km
162 km E of Miyako, Iwate, JapanMore
Nov 5, 1989 19:06
33 years ago
4.7

29 km
153 km E of Miyako, Iwate, JapanMore
Nov 5, 1989 18:00
33 years ago
4.8

33 km
132 km E of Miyako, Iwate, JapanMore
Nov 5, 1989 15:56
33 years ago
5.2

29 km
146 km E of Miyako, Iwate, JapanMore
Nov 5, 1989 15:08
33 years ago
5.2

43 km
78 km NE of Miyako, Iwate, JapanMore
Nov 5, 1989 13:42
33 years ago
5.2

31 km
143 km E of Miyako, Iwate, JapanMore
Nov 5, 1989 01:25
33 years ago
4.0

37 km
141 km SE of Miyako, Iwate, JapanMore
Nov 4, 1989 21:56
33 years ago
5.3

21 km
126 km E of Miyako, Iwate, JapanMore
Nov 4, 1989 20:51
33 years ago
5.5

27 km
148 km E of Kamaishi, Iwate, JapanMore
Nov 4, 1989 20:12
33 years ago
5.9

30 km
135 km SE of Miyako, Iwate, JapanMore
Nov 4, 1989 02:49
33 years ago
4.8

33 km
115 km E of Miyako, Iwate, JapanMore
Nov 3, 1989 22:45
33 years ago
4.3

31 km
132 km E of Miyako, Iwate, JapanMore
Nov 3, 1989 08:15
33 years ago
4.3

33 km
107 km E of Miyako, Iwate, JapanMore
Nov 3, 1989 05:49
33 years ago
5.2

25 km
109 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 22:35
33 years ago
4.1

33 km
150 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 19:42
33 years ago
4.3

33 km
147 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 16:17
33 years ago
3.8

33 km
112 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 15:55
33 years ago
4.2

33 km
181 km E of Hachinohe, Aomori, JapanMore
Nov 2, 1989 13:42
33 years ago
5.5

28 km
119 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 11:59
33 years ago
5.5

29 km
151 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 11:51
33 years ago
5.3

27 km
99 km E of Yamada, Shimohei-gun, Iwate, JapanMore
Nov 2, 1989 11:30
33 years ago
4.0

33 km
173 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 10:37
33 years ago
4.0

33 km
178 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 10:03
33 years ago
4.7

33 km
103 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 09:34
33 years ago
4.9

34 km
107 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 07:09
33 years ago
3.8

33 km
60 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 04:01
33 years ago
4.1

33 km
130 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 02:22
33 years ago
4.6

33 km
133 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 01:42
33 years ago
4.8

33 km
135 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 01:13
33 years ago
4.5

30 km
123 km E of Miyako, Iwate, JapanMore
Nov 2, 1989 01:09
33 years ago
4.7

27 km
138 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 23:52
33 years ago
3.8

33 km
193 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 23:20
33 years ago
4.2

29 km
143 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 23:05
33 years ago
5.5

39 km
98 km E of Kamaishi, Iwate, JapanMore
Nov 1, 1989 23:04
33 years ago
4.3

31 km
103 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 22:34
33 years ago
4.4

33 km
131 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 22:09
33 years ago
4.1

33 km
122 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 21:53
33 years ago
4.8

33 km
92 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 21:40
33 years ago
4.8

33 km
121 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 20:20
33 years ago
5.3

57 km
77 km NE of Miyako, Iwate, JapanMore
Nov 1, 1989 19:52
33 years ago
5.1

30 km
144 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 19:29
33 years ago
4.5

33 km
142 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 18:36
33 years ago
6.0

30 km
102 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 18:25
33 years ago
7.4

29 km
73 km E of Miyako, Iwate, JapanMore
Nov 1, 1989 12:24
33 years ago
5.2

33 km
115 km E of Miyako, Iwate, JapanMore
Oct 31, 1989 05:07
33 years ago
4.7

33 km
113 km E of Miyako, Iwate, JapanMore
Oct 30, 1989 14:20
33 years ago
4.1

10 km
203 km E of Miyako, Iwate, JapanMore
Oct 29, 1989 23:18
33 years ago
5.3

10 km
109 km E of Miyako, Iwate, JapanMore
Oct 29, 1989 16:07
33 years ago
4.1

10 km
147 km E of Miyako, Iwate, JapanMore
Oct 29, 1989 15:53
33 years ago
5.5

10 km
127 km E of Miyako, Iwate, JapanMore
Oct 29, 1989 12:45
33 years ago
4.4

10 km
119 km E of Miyako, Iwate, JapanMore
Oct 29, 1989 10:51
33 years ago
5.5

18 km
127 km E of Miyako, Iwate, JapanMore
Oct 29, 1989 06:16
33 years ago
4.1

10 km
82 km NE of Miyako, Iwate, JapanMore
Oct 29, 1989 05:37
33 years ago
5.0

10 km
126 km E of Miyako, Iwate, JapanMore
Oct 29, 1989 05:25
33 years ago
6.9

9.6 km
120 km E of Miyako, Iwate, JapanMore
Oct 29, 1989 03:32
33 years ago
4.7

10 km
134 km E of Miyako, Iwate, JapanMore
Oct 29, 1989 03:09
33 years ago
5.9

10 km
130 km E of Miyako, Iwate, JapanMore
Oct 27, 1989 10:59
33 years ago
4.3

10 km
173 km E of Miyako, Iwate, JapanMore
Oct 27, 1989 08:42
33 years ago
3.9

10 km
173 km E of Miyako, Iwate, JapanMore
Oct 27, 1989 08:09
33 years ago
4.8

10 km
146 km E of Miyako, Iwate, JapanMore
Oct 27, 1989 03:03
33 years ago
4.7

10 km
154 km E of Miyako, Iwate, JapanMore
Oct 27, 1989 02:24
33 years ago
4.7

10 km
154 km E of Miyako, Iwate, JapanMore
Oct 27, 1989 02:06
33 years ago
5.3

10 km
143 km E of Miyako, Iwate, JapanMore
Show all

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