Strong mag. 6.3 earthquake - 93 km east of Ishinomaki, Honshu-miyagi-ken, Japan, on Wednesday, June 14, 1978 at 11:34 GMT

Strong mag. 6.3 earthquake - 93 km east of Ishinomaki, Honshu-miyagi-ken, Japan, on Wednesday, June 14, 1978 at 11:34 GMT Strong mag. 6.3 earthquake - 93 km east of Ishinomaki, Honshu-miyagi-ken, Japan, on Wednesday, June 14, 1978 at 11:34 GMT

Strong magnitude 6.3 earthquake at 40 km depth

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

Earthquake details

Date & timeJun 14, 1978 11:34:20 UTC
Local time at epicenter
StatusConfirmed
Magnitude6.3
Depth40.0 km
Epicenter latitude / longitude38.319°N / 142.364°E (North Pacific Ocean, Japan)
Antipode38.319°S / 37.636°W
Shaking intensityModerate shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoNarugo (149 km / 93 mi)
Nearby towns and cities93 km (58 mi) E of Ishinomaki (pop: 117,200) | Show on map | Quakes nearby
116 km (72 mi) E of Schiogama (pop: 59,500) | Show on map | Quakes nearby
126 km (78 mi) ESE of Furukawa (pop: 76,300) | Show on map | Quakes nearby
126 km (78 mi) ESE of Ichinoseki (pop: 63,000) | Show on map | Quakes nearby
131 km (81 mi) E of Sendai (pop: 1,063,100) | Show on map | Quakes nearby
152 km (95 mi) SE of Kitakami (pop: 93,900) | Show on map | Quakes nearby
175 km (109 mi) E of Yamagata (pop: 254,500) | Show on map | Quakes nearby
178 km (111 mi) ENE of Fukushima (pop: 294,200) | Show on map | Quakes nearby
186 km (116 mi) SE of Morioka (pop: 295,200) | Show on map | Quakes nearby
377 km (234 mi) NE of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby
Estimated seismic energy released1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 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
6.340 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 (32 quakes)

Date and timeMag
Depth
LocationDetails
Dec 9, 1978 05:30
44 years ago
4.3

57 km
98 km E of Ishinomaki, Honshu-miyagi-ken, JapanMore
Dec 7, 1978 05:47
44 years ago
4.6

59 km
39 km SE of Kasakai-jima Island, JapanMore
Dec 1, 1978 23:03
44 years ago
5.0

33 km
146 km E of Kasakai-jima Island, JapanMore
Nov 24, 1978 07:41
44 years ago
3.9

49 km
102 km SE of Kasakai-jima Island, JapanMore
Nov 13, 1978 03:01
44 years ago
5.2

43 km
80 km NE of Ishinomaki, Honshu-miyagi-ken, JapanMore
Oct 28, 1978 06:58
44 years ago
4.6

51 km
87 km SE of Ishinomaki, Honshu-miyagi-ken, JapanMore
Sep 23, 1978 22:43
44 years ago
5.4

31 km
146 km SE of Kamaishi, Iwate, JapanMore
Sep 22, 1978 03:57
44 years ago
4.9

33 km
125 km E of Kasakai-jima Island, JapanMore
Sep 2, 1978 16:43
44 years ago
4.0

59 km
81 km SE of Ishinomaki, Honshu-miyagi-ken, JapanMore
Aug 27, 1978 23:30
44 years ago
4.6

47 km
93 km NE of Ishinomaki, Honshu-miyagi-ken, JapanMore
Aug 20, 1978 21:31
44 years ago
4.6

57 km
47 km SE of Oki-sannō-jima Island, Honshu-miyagi-ken, JapanMore
Jul 27, 1978 07:24
44 years ago
5.2

46 km
55 km SE of Oki-sannō-jima Island, Honshu-miyagi-ken, JapanMore
Jul 20, 1978 06:33
44 years ago
4.4

33 km
181 km E of Sendai, Honshu-miyagi-ken, JapanMore
Jul 19, 1978 15:00
44 years ago
4.3

38 km
132 km E of Kasakai-jima Island, JapanMore
Jul 12, 1978 12:11
44 years ago
4.7

33 km
80 km E of Kasakai-jima Island, JapanMore
Jul 12, 1978 11:37
44 years ago
4.5

44 km
96 km E of Kasakai-jima Island, JapanMore
Jul 4, 1978 15:47
44 years ago
4.8

37 km
110 km E of Kasakai-jima Island, JapanMore
Jun 25, 1978 15:12
44 years ago
4.9

33 km
107 km E of Kasakai-jima Island, JapanMore
Jun 21, 1978 11:49
44 years ago
5.1

33 km
137 km E of Kasakai-jima Island, JapanMore
Jun 21, 1978 10:54
44 years ago
5.7

52 km
Kasakai-jima, 41 km E of Ishinomaki, Honshu-miyagi-ken, JapanMore
Jun 21, 1978 03:35
44 years ago
4.3

33 km
109 km E of Kasakai-jima Island, JapanMore
Jun 19, 1978 07:30
44 years ago
4.8

28 km
94 km E of Ishinomaki, Honshu-miyagi-ken, JapanMore
Jun 19, 1978 02:58
44 years ago
4.9

33 km
118 km SE of Kasakai-jima Island, JapanMore
Jun 18, 1978 14:59
44 years ago
5.2

33 km
129 km E of Ishinomaki, Honshu-miyagi-ken, JapanMore
Jun 17, 1978 13:02
44 years ago
4.2

33 km
132 km SE of Sangan-jima Island, Iwate, JapanMore
Jun 16, 1978 23:24
44 years ago
5.0

33 km
208 km E of Sendai, Honshu-miyagi-ken, JapanMore
Jun 16, 1978 13:40
44 years ago
4.4

33 km
93 km E of Ishinomaki, Honshu-miyagi-ken, JapanMore
Jun 16, 1978 11:58
44 years ago
4.9

33 km
133 km SE of Sangan-jima Island, Iwate, JapanMore
Jun 16, 1978 10:15
44 years ago
5.2

33 km
212 km E of Sendai, Honshu-miyagi-ken, JapanMore
Jun 16, 1978 08:35
44 years ago
4.9

33 km
214 km E of Sendai, Honshu-miyagi-ken, JapanMore
Jun 16, 1978 05:33
44 years ago
5.6

34 km
210 km E of Sendai, Honshu-miyagi-ken, JapanMore
Jun 15, 1978 15:03
44 years ago
5.4

42 km
49 km SE of Oki-sannō-jima Island, Honshu-miyagi-ken, JapanMore

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