M 8.2 earthquake – 1920 Hualien, Taiwan Earthquake
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Local time: Jun 5, 1920 · 12:21 (UTC+8)
GreatShallow · 20 km
Reviewed by a seismologist
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- Magnitude
- 8.2moment magnitude (mw)
- Depth
- 20 kmShallow earthquake
- Epicenter
- 23.688, 121.95448 km from Hualien City
- Energy released
- 30 megatons of TNTabout 2,006 × Hiroshima
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- 6.9max. instrumental (MMI)
- Aftershocks
- 0M2.5+ within 375 km
- Significance
- 1,042USGS 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?
Great earthquake. It released 30 megatons of TNT, 63,096 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 Taiwan.
- 7.8 Taiwan Nov 24, 1951
- 7.7 21 km S of Puli, Taiwan Sep 20, 1999
- 7.7 50 km SSE of Yilan, Taiwan Sep 1, 1922
- 7.5 38 km SW of Yonakuni, Japan Mar 12, 1966
- 7.5 58 km SSW of Hualien City, Taiwan Oct 21, 1951
- 7.4 15 km S of Hualien City, Taiwan Apr 2, 2024
- 7.4 8 km SSW of Hualien City, Taiwan Nov 14, 1986
- 7.4 85 km ENE of Hengchun, Taiwan Jul 23, 1978