M 7.3 earthquake – 151 km W of Kangding, China
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Local time: May 25, 1948 · 16:11 (UTC+9)
MajorShallow · 55 km
Reviewed by a seismologist
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- Magnitude
- 7.3moment magnitude (mw)
- Depth
- 55 kmShallow earthquake
- Epicenter
- 30.124, 100.391121 km from Daocheng
- Energy released
- 1.3 megatons of TNTabout 90 × Hiroshima
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- 6.4max. instrumental (MMI)
- Aftershocks
- 1M2.5+ within 110 km, up to 60 days
- Significance
- 820USGS 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 1.3 megatons of TNT, 2,818 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
1 earthquakes of M2.5+ within 110 km in the 60 days after.
The strongest earthquakes within 300 km
Since 1900, around China.
- 7.9 58 km W of Tianpeng, China May 12, 2008
- 7.4 203 km NW of Kangding, China Feb 6, 1973
- 7.1 19 km WSW of Kangding, China Apr 14, 1955
- 7.1 150 km WNW of Kangding, China Aug 30, 1904
- 7.0 184 km NW of Kangding, China Mar 24, 1923
- 6.8 143 km WSW of Kangding, China Feb 9, 1908
- 6.8 131 km NW of Kangding, China Jan 23, 1981
- 6.6 59 km N of Xichang, China Sep 30, 1952