QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near West Paris, ME

USGS: 6 km NE of West Paris, Maine

4:51 pm EST, Jan 21, 2017 · · 3.9 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Oxford County 23 kmAndroscoggin County 33 kmKennebec County 60 kmCumberland County 64 kmFranklin County 69 kmCoos County 69 kmSagadahoc County 73 kmCarroll County 78 kmLincoln County 90 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
4:51 pm EST on 21 January 2017 ()
Where
6 km (4 mi) NE of West Paris, ME · earthquakes near West Paris
Magnitude
M 2.1 (ml)
Depth
3.9 km below the surface
Felt
22 reports · strongest reported intensity IV
Nearest
Oxford County, 23 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3461 days ago

A magnitude 2.1 earthquake was recorded 6 km (4 mi) NE of West Paris, ME, at 4:51 pm EST on 21 January 2017 (21:51 UTC). 22 people have reported feeling it to USGS. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Woodstock, Paris, Hartford, Buckfield, South Paris, Norway.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 44.3636, -70.5170. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Oxford County, ME 23 km (14 mi) NW earthquakes near Oxford County
Androscoggin County, ME 33 km (20 mi) SE earthquakes near Androscoggin County
Kennebec County, ME 60 km (37 mi) E earthquakes near Kennebec County
Cumberland County, ME 64 km (39 mi) SSE earthquakes near Cumberland County
Franklin County, ME 69 km (43 mi) N earthquakes near Franklin County
Coos County, NH 69 km (43 mi) WNW earthquakes near Coos County

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

Aftershocks so far

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

  1. 1.6 5 km SSE of Monmouth, Maine
  2. 1.6 2 km NW of Hanover, Maine
  3. 1.7 6 km S of Livermore, Maine
  4. 1.8 6 km SSE of Turner, Maine
  5. 1.7 6 km SSW of Livermore, Maine
  6. 1.6 6 km ENE of Buckfield, Maine
  7. 1.7 4 km S of Carthage, Maine
  8. 1.5 6 km S of Monmouth, Maine
  9. 2.5 6 km N of Turner, Maine
  10. 2.4 Maine
  11. 1.5 2 km ENE of Lewiston, Maine
  12. 2.0 7 km WNW of Andover, Maine
  13. 1.8 2 km SSE of West Paris, Maine
  14. 1.7 5 km NW of Greene, Maine
  15. 2.1 9 km NNW of Harrison, 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.