M 8.6 earthquake – 2012 Wharton Basin Earthquake
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Local time: Apr 11, 2012 · 15:38 (UTC+7)
GreatShallow · 20 kmPAGER yellow
Reviewed by a seismologist
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- Magnitude
- 8.6moment magnitude (mw)
- Depth
- 20 kmShallow earthquake
- Epicenter
- 2.327, 93.063396 km from Meulaboh
- Energy released
- 120 megatons of TNTabout 7,986 × Hiroshima
- Felt reports
- 3,311"Did You Feel It?" responses
- Shaking intensity
- 6.8max. instrumental (MMI)
- Aftershocks
- 476M2.5+ within 500 km, up to 60 days
- Significance
- 2,048USGS 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 120 megatons of TNT, 251,189 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
476 earthquakes of M2.5+ within 500 km in the 60 days after.
- 5.8 North Indian Ocean Apr 11, 2012
- 4.9 off the west coast of northern Sumatra Apr 11, 2012
- 5.9 North Indian Ocean Apr 11, 2012
- 5.3 North Indian Ocean Apr 11, 2012
- 5.0 North Indian Ocean Apr 11, 2012
- 5.2 North Indian Ocean Apr 11, 2012
- 4.9 off the west coast of northern Sumatra Apr 11, 2012
- 4.7 off the west coast of northern Sumatra Apr 11, 2012
- 4.5 North Indian Ocean Apr 11, 2012
- 4.8 North Indian Ocean Apr 11, 2012
The strongest earthquakes within 300 km
Since 1900.
- 8.2 2012 Wharton Basin Aftershock Apr 11, 2012
- 8.2 The 1907 Sumatra Earthquake and Tsunami Jan 4, 1907
- 7.5 209 km WSW of Sinabang, Indonesia Nov 21, 1969
- 7.2 off the west coast of northern Sumatra Jan 10, 2012
- 6.9 164 km WSW of Sinabang, Indonesia Nov 8, 1995
- 6.8 99 km WNW of Sinabang, Indonesia Feb 26, 2005
- 6.8 276 km WSW of Sinabang, Indonesia Sep 29, 1979
- 6.7 171 km W of Meulaboh, Indonesia Dec 9, 1929
In the week before
Earthquakes within 500 km in the 7 days before this one: possible foreshocks.
- 4.1 121 km SW of Singkil, Indonesia Apr 5, 2012
- 4.4 191 km SSE of Sinabang, Indonesia Apr 8, 2012
- 4.3 153 km WSW of Banda Aceh, Indonesia Apr 8, 2012
- 4.5 133 km WSW of Banda Aceh, Indonesia Apr 8, 2012
- 4.6 127 km WSW of Meulaboh, Indonesia Apr 9, 2012
- 4.7 107 km NNE of Sinabang, Indonesia Apr 10, 2012
- 4.5 121 km SW of Singkil, Indonesia Apr 10, 2012