M 7.1 earthquake – Bonin Islands, Japan region
·
Local time: Aug 20, 1998 · 15:40 (UTC+9)
MajorDeep · 441 km
Reviewed by a seismologist
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- Magnitude
- 7.1moment magnitude (mwb)
- Depth
- 441 kmDeep earthquake
- Epicenter
- 28.932, 139.329608 km from Kushimoto
- Energy released
- 674 kilotons of TNTabout 45 × Hiroshima
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- —not estimated
- Aftershocks
- 0M2.5+ within 84 km
- Significance
- 776USGS score, 0–1,000+
The strongest here since 1984
The last earthquake at least as strong within 300 km struck on Mar 6, 1984.
How strong was it?
Major earthquake. It released 674 kilotons of TNT, 1,413 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
The strongest earthquakes within 300 km
Since 1900, around Japan.
- 7.8 Bonin Islands, Japan region May 30, 2015
- 7.4 Bonin Islands, Japan region Aug 6, 2000
- 7.4 Izu Islands, Japan region Mar 6, 1984
- 7.3 Izu Islands, Japan region Feb 18, 1956
- 7.1 Bonin Islands, Japan region May 27, 1970
- 7.1 west of the Bonin Islands, Japan Jul 4, 1982
- 7.1 Bonin Islands, Japan region Jul 11, 1951
- 6.9 Izu Islands, Japan region Apr 24, 1984