QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

6 km SE of Newfield, Maine

· 7.2 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N York County 23 kmStrafford County 40 kmCumberland County 43 kmCarroll County 44 kmBelknap County 52 kmRockingham County 73 kmAndroscoggin County 78 kmMerrimack County 79 kmSagadahoc County 84 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
Magnitude
M 1.5 (ml)
Depth
7.2 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
York County, 23 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1009 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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.

Where

Epicentre 43.6080, -70.7938. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
York County, ME 23 km (14 mi) NNW of here earthquakes near York County
Strafford County, NH 40 km (25 mi) NNE of here earthquakes near Strafford County
Cumberland County, ME 43 km (27 mi) WSW of here earthquakes near Cumberland County
Carroll County, NH 44 km (27 mi) SE of here earthquakes near Carroll County
Belknap County, NH 52 km (32 mi) E of here earthquakes near Belknap County
Rockingham County, NH 73 km (45 mi) NNE of here earthquakes near Rockingham County

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

Aftershocks so far

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

  1. 1.8 2 km SW of Gray, Maine
  2. 1.9 8 km ENE of Lake Arrowhead, Maine
  3. 2.0 5 km S of Alton, New Hampshire
  4. 1.9 3 km WSW of Dayton, 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.