Very strong mag. 6.8 earthquake - East China Sea, 47 km south of Suwanose-jima Island, Japan, on Friday, October 30, 2009 at 07:03 (GMT)

Very strong mag. 6.8 earthquake - East China Sea, 47 km south of Suwanose-jima Island, Japan, on Friday, October 30, 2009 at 07:03 (GMT)

Very strong magnitude 6.8 earthquake at 34 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Oct 30, 2009 07:03:39 UTC
Magnitude: 6.8
Depth: 34.0 km
Epicenter latitude / longitude: 29.218°N / 129.782°E (East China Sea, Japan)
Antipode: 29.218°S / 50.218°W
Nearest volcano: Akuseki-jima (32 km / 20 mi)
Nearby towns and cities:
99 km (62 mi) NNE of Naze (pop: 41,400) --> See nearby quakes!
239 km (149 mi) SSW of Ibusuki (pop: 29,700) --> See nearby quakes!
262 km (163 mi) SSW of Kanoya (pop: 82,300) --> See nearby quakes!
271 km (169 mi) SSW of Kagoshima (pop: 555,400) --> See nearby quakes!
293 km (182 mi) S of Sendai (pop: 73,100) --> See nearby quakes!
295 km (183 mi) SSW of Kokubu-matsuki (pop: 57,900) --> See nearby quakes!
339 km (210 mi) SSW of Miyazaki (pop: 311,200) --> See nearby quakes!
393 km (244 mi) NNE of Naha (pop: 300,800) --> See nearby quakes!
393 km (244 mi) S of Nagasaki (pop: 410,200) --> See nearby quakes!
408 km (254 mi) SSW of Kumamoto (pop: 680,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1 x 1015 joules (278 gigawatt hours, equivalent to 2.4 x 105 tons of TNT or 14.9 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
6.834 kmRyukyu Islands, 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 (10 quakes)

Date and timeMag
Depth
LocationDetails
Apr 11, 2010 13:02
12 years ago
5.1

46 km
East China Sea, 68 km E of Suwanose-jima Island, JapanMore
Mar 31, 2010 06:53
12 years ago
4.0

30 km
East China Sea, 61 km W of Kaminone-sho Island, Kagoshima, JapanMore
Mar 15, 2010 14:10
12 years ago
4.5

35 km
East China Sea, 47 km W of Kaminone-sho Island, Kagoshima, JapanMore
Mar 15, 2010 10:52
12 years ago
4.2

47 km
East China Sea, 42 km W of Kaminone-sho Island, Kagoshima, JapanMore
Mar 15, 2010 09:35
12 years ago
5.2

35 km
East China Sea, 54 km W of Kaminone-sho Island, Kagoshima, JapanMore
Mar 15, 2010 02:57
12 years ago
4.6

55 km
East China Sea, 64 km W of Kaminone-sho Island, Kagoshima, JapanMore
Mar 15, 2010 02:10
12 years ago
4.4

56 km
East China Sea, 51 km W of Kaminone-sho Island, Kagoshima, JapanMore
Jan 15, 2010 07:14
12 years ago
4.3

57 km
East China Sea, 22 km SE of Kakeroma Jima Island, Kagoshima, JapanMore
Dec 17, 2009 02:14
12 years ago
4.4

48 km
East China Sea, 22 km SE of Amami Ōshima Island, Kagoshima, JapanMore
Dec 12, 2009 13:50
12 years ago
4.6

10 km
East China Sea, 20 km S of Naze, Amami Shi, Kagoshima, JapanMore

Earlier earthquakes in the same area

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