M 7.8 earthquake – Bonin Islands, Japan region
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Local time: May 30, 2015 · 20:23 (UTC+9)
MajorDeep · 664 kmPAGER greenTsunami information issued
Reviewed by a seismologist
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- Magnitude
- 7.8moment magnitude (mww)
- Depth
- 664 kmDeep earthquake
- Epicenter
- 27.839, 140.493772 km from Kushimoto
- Energy released
- 7.6 megatons of TNTabout 504 × Hiroshima
- Felt reports
- 360"Did You Feel It?" responses
- Shaking intensity
- 3.4max. instrumental (MMI)
- Aftershocks
- 24M2.5+ within 218 km, up to 60 days
- Significance
- 1,152USGS score, 0–1,000+
The strongest within 300 km on record
No earthquake this strong has been recorded this close since our catalog begins in 1900.
How strong was it?
Major earthquake. It released 7.6 megatons of TNT, 15,849 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
24 earthquakes of M2.5+ within 218 km in the 60 days after.
- 4.4 Bonin Islands, Japan region May 30, 2015
- 4.5 Bonin Islands, Japan region May 30, 2015
- 4.0 Bonin Islands, Japan region May 30, 2015
- 4.4 Bonin Islands, Japan region May 31, 2015
- 4.3 Bonin Islands, Japan region May 31, 2015
- 4.9 Bonin Islands, Japan region Jun 2, 2015
- 4.1 Bonin Islands, Japan region Jun 3, 2015
- 4.0 Bonin Islands, Japan region Jun 4, 2015
- 4.4 Izu Islands, Japan region Jun 6, 2015
- 4.9 Bonin Islands, Japan region Jun 14, 2015
The strongest earthquakes within 300 km
Since 1900, around Japan.
- 7.4 Bonin Islands, Japan region Aug 6, 2000
- 7.4 Izu Islands, Japan region Mar 6, 1984
- 7.3 Bonin Islands, Japan region Oct 7, 1968
- 7.1 Bonin Islands, Japan region May 27, 1970
- 7.1 Bonin Islands, Japan region Aug 20, 1998
- 7.1 Bonin Islands, Japan region Jul 11, 1951
- 6.9 Bonin Islands, Japan region Dec 7, 1955
- 6.8 Bonin Islands, Japan region Nov 30, 2010
In the week before
Earthquakes within 218 km in the 7 days before this one: possible foreshocks.