QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

29 km ESE of York 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 50 kmStrafford County 66 kmRockingham County 68 kmEssex County 69 kmCumberland County 81 kmSagadahoc County 99 kmSuffolk County 103 kmBelknap County 105 kmMiddlesex County 113 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
no reports yet
Nearest
York County, 50 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 607 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

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 43.0810, -70.2715. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
York County, ME 50 km (31 mi) SE of here earthquakes near York County
Strafford County, NH 66 km (41 mi) ESE of here earthquakes near Strafford County
Rockingham County, NH 68 km (42 mi) E of here earthquakes near Rockingham County
Essex County, MA 69 km (43 mi) NE of here earthquakes near Essex County
Cumberland County, ME 81 km (50 mi) S of here earthquakes near Cumberland County
Sagadahoc County, ME 99 km (62 mi) SSW of here earthquakes near Sagadahoc County

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

Aftershocks so far

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

  1. 2.1 34 km SE of York Beach, Maine
  2. 2.0 13 km SE of York Harbor, Maine
  3. 2.0 10 km SE of York Harbor, Maine
  4. 3.8 9 km SE of York Harbor, Maine
  5. 2.3 54 km E of Rockport, Massachusetts
  6. 1.9 42 km ENE of Rockport, Massachusetts
  7. 2.0 15 km N of Rockport, Massachusetts
  8. 2.4 42 km SE of Old Orchard Beach, Maine
  9. 2.6 38 km SE of Old Orchard 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.