M 4.2 earthquake – 6 km W of Blackey, Kentucky
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Local time: Nov 10, 2012 · 12:08 (UTC-5)
LightShallow · 17 kmPAGER green
Reviewed by a seismologist
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- Magnitude
- 4.2moment magnitude (mw)
- Depth
- 17 kmShallow earthquake
- Epicenter
- 37.139, -83.05479 km from Kingsport
- Energy released
- 30 tons of TNTless than one Hiroshima bomb
- Felt reports
- 2"Did You Feel It?" responses
- Shaking intensity
- 5.0max. instrumental (MMI)
- Aftershocks
- 1M2.5+ within 30 km, up to 60 days
- Significance
- 272USGS score, 0–1,000+
The strongest here since 2006
The last earthquake at least as strong within 300 km struck on Nov 23, 2006.
How strong was it?
Light earthquake. It released 30 tons of TNT, 16 times less than a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
1 earthquakes of M2.5+ within 30 km in the 60 days after.
The strongest earthquakes within 300 km
Since 1900, around United States.
- 5.2 Near Asheville, North Carolina Feb 21, 1916
- 5.1 4 km SE of Sparta, North Carolina Aug 9, 2020
- 5.0 2 km SW of Sharpsburg, Kentucky Jul 27, 1980
- 4.7 1 km NE of Alcoa, Tennessee Nov 30, 1973
- 4.6 6 km W of Owingsville, Kentucky Sep 7, 1988
- 4.5 8 km ENE of Athens, West Virginia Nov 20, 1969
- 4.5 5 km S of Greeneville, Tennessee Nov 3, 1928
- 4.4 12 km NNE of Decatur, Tennessee Dec 12, 2018