Mag. 4.0 earthquake - Philippines Sea, 1061 km south of Tokyo, Japan, on Tuesday, 31 July 2012 at 00:40 (GMT)

Mag. 4.0 earthquake - Philippines Sea, 1061 km south of Tokyo, Japan, on Tuesday, 31 July 2012 at 00:40 (GMT)

Light magnitude 4.0 earthquake at 28 km depth

Date & time: 31 Jul 2012 00:40:33 UTC
Magnitude: 4
Depth: 27.6 km
Epicenter latitude / longitude: 26.294°N / 141.634°E (Philippines Sea, Japan)
Nearest volcano: Kaitoku (56 km / 35 mi)
Nearby towns and cities:
1061 km (659 mi) S of Tokyo (pop: 8,336,600) --> See nearby quakes!
103 km (64 mi) SSW of Chichijima Island (pop: 2,000) --> See nearby quakes!
102 km (63 mi) NNE of San Alexander Island --> See nearby quakes!
171 km (106 mi) N of Iwo Jima Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) 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.
MagnitudeDepthLocationSource
M 4.028 kmBonin Islands, Japan regionUSGS
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 yet. If you felt it be the first to report it!
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Earlier earthquakes in the same area

Mag. 4.0 earthquake - Philippines Sea, 1061 km south of Tokyo, Japan, on Tuesday, 31 July 2012 at 00:40 (GMT)
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