M 7.4 earthquake – 24 km N of Manjīl, Iran
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Local time: Jun 21, 1990 · 00:30 (UTC+3:30)
MajorShallow · 19 km
Reviewed by a seismologist
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- Magnitude
- 7.4moment magnitude (mw)
- Depth
- 19 kmShallow earthquake
- Epicenter
- 36.957, 49.40924 km from Manjīl
- Energy released
- 1.9 megatons of TNTabout 127 × Hiroshima
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- 9.3max. instrumental (MMI)
- Aftershocks
- 43M2.5+ within 127 km, up to 60 days
- Significance
- 842USGS 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 1.9 megatons of TNT, 3,981 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
43 earthquakes of M2.5+ within 127 km in the 60 days after.
- 4.7 27 km ESE of Khalkhāl, Iran Jun 20, 1990
- 4.5 11 km SSE of Hashtpar, Iran Jun 20, 1990
- 4.6 28 km E of Pādegān-e Manjīl, Iran Jun 20, 1990
- 4.6 20 km SSW of Fūman, Iran Jun 20, 1990
- 4.9 11 km NNE of Pādegān-e Manjīl, Iran Jun 20, 1990
- 4.9 23 km NE of Pādegān-e Manjīl, Iran Jun 20, 1990
- 4.7 16 km SE of Amlash, Iran Jun 20, 1990
- 4.5 23 km SE of Rasht, Iran Jun 20, 1990
- 5.1 39 km ESE of Pādegān-e Manjīl, Iran Jun 20, 1990
- 4.6 9 km ENE of Şowme‘eh Sarā, Iran Jun 21, 1990
The strongest earthquakes within 300 km
Since 1900, around Iran.
- 7.0 23 km WSW of Bū’īn Zahrā, Iran Sep 1, 1962
- 6.5 59 km SSW of Abhar, Iran Jun 22, 2002
- 6.4 26 km SW of Ahar, Iran Aug 11, 2012
- 6.3 41 km SSE of Nowshahr, Iran May 28, 2004
- 6.2 30 km WSW of Ahar, Iran Aug 11, 2012
- 6.2 29 km NNE of Hashtpar, Iran May 4, 1980
- 6.1 29 km SW of Ardabīl, Iran Feb 28, 1997
- 6.1 13 km S of Hashtpar, Iran Nov 4, 1978