QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Sangerville, ME

USGS: 3 km N of Sangerville, Maine

8:42 am EST, Feb 12, 2016 · · 2.0 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Somerset County 58 kmPenobscot County 59 kmPiscataquis County 82 kmWaldo County 83 kmFranklin County 86 kmKennebec County 92 kmHancock County 105 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
8:42 am EST on 12 February 2016 ()
Where
4 km (2 mi) N of Sangerville, ME · earthquakes near Sangerville
Magnitude
M 1.8 (ml)
Depth
2.0 km below the surface
Felt
no reports yet
Nearest
Somerset County, 58 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3811 days ago

A magnitude 1.8 earthquake was recorded 4 km (2 mi) N of Sangerville, ME, at 8:42 am EST on 12 February 2016 (13:42 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Dover-Foxcroft, Dexter, Garland, Charleston, Brownville, Milo.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 45.1970, -69.3600. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Somerset County, ME 58 km (36 mi) NW earthquakes near Somerset County
Penobscot County, ME 59 km (37 mi) ENE earthquakes near Penobscot County
Piscataquis County, ME 82 km (51 mi) NNE earthquakes near Piscataquis County
Waldo County, ME 83 km (51 mi) SSE earthquakes near Waldo County
Franklin County, ME 86 km (54 mi) WSW earthquakes near Franklin County
Kennebec County, ME 92 km (57 mi) SSW earthquakes near Kennebec County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

19 earthquakes have been recorded within 50 km since this one.

  1. 1.5 15 km ENE of Greenville, Maine
  2. 2.0 5 km ENE of Dover-Foxcroft, Maine
  3. 2.0 7 km ESE of Dover-Foxcroft, Maine
  4. 1.5 7 km ESE of Cambridge, Maine
  5. 1.7 3 km N of Sangerville, Maine
  6. 1.9 3 km SW of Sebec, Maine
  7. 1.6 4 km NNE of Bowerbank, Maine
  8. 1.9 0 km ENE of Sebec, Maine
  9. 2.5 5 km SSW of Sebec, Maine
  10. 1.5 6 km SSE of Willimantic, Maine
  11. 1.9 9 km NW of Brownville, Maine
  12. 2.0 9 km NNW of Lake View, Maine
  13. 2.1 7 km S of Sebec, Maine
  14. 1.6 7 km SSE of Willimantic, Maine
  15. 1.6 4 km NW of Kenduskeag, Maine

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.