QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

42 km SE of Old Orchard Beach, Maine

· 10 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N York County 59 kmCumberland County 65 kmSagadahoc County 71 kmStrafford County 87 kmLincoln County 87 kmRockingham County 98 kmAndroscoggin County 100 kmEssex County 102 kmKnox County 112 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 2.4 (ml)
Depth
10 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
York County, 59 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1687 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 43.2861, -69.9643. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
York County, ME 59 km (37 mi) ESE of here earthquakes near York County
Cumberland County, ME 65 km (40 mi) SSE of here earthquakes near Cumberland County
Sagadahoc County, ME 71 km (44 mi) S of here earthquakes near Sagadahoc County
Strafford County, NH 87 km (54 mi) E of here earthquakes near Strafford County
Lincoln County, ME 87 km (54 mi) SSW of here earthquakes near Lincoln County
Rockingham County, NH 98 km (61 mi) ENE of here earthquakes near Rockingham County

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

Aftershocks so far

1 earthquake has been recorded within 50 km since this one.

  1. 2.1 34 km SE of York Beach, 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.