M 7.3 earthquake – 15 km NNW of Karpathos, Greece
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Local time: Feb 9, 1948 · 14:58 (UTC+2)
MajorShallow · 15 km
Reviewed by a seismologist
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- Magnitude
- 7.3moment magnitude (mw)
- Depth
- 15 kmShallow earthquake
- Epicenter
- 35.640, 27.158130 km from Rhodes
- Energy released
- 1.3 megatons of TNTabout 90 × Hiroshima
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- 7.1max. instrumental (MMI)
- Aftershocks
- 4M2.5+ 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
4 earthquakes of M2.5+ within 110 km in the 60 days after.
The strongest earthquakes within 300 km
Since 1900, around Greece.
- 7.7 19 km SSE of Amorgós, Greece Jul 9, 1956
- 7.3 34 km S of Sarigerme, Turkey Apr 25, 1957
- 7.1 27 km SSE of Sarigerme, Turkey Apr 24, 1957
- 7.0 13 km NNE of Néon Karlovásion, Greece Oct 30, 2020
- 7.0 5 km NNW of Kéfalos, Greece Jun 26, 1926
- 6.8 70 km WSW of Beykonak, Turkey Mar 18, 1926
- 6.7 33 km SE of Karpathos, Greece Aug 13, 1922
- 6.6 11 km ENE of Kos, Greece Jul 20, 2017