QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

7 km ESE of Cambridge, Maine

· 9.4 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Waldo County 63 kmSomerset County 71 kmPenobscot County 72 kmKennebec County 72 kmFranklin County 81 kmHancock County 94 kmPiscataquis County 103 kmKnox County 111 kmLincoln 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 1.5 (ml)
Depth
9.4 km below the surface
Felt
no reports yet
Nearest
Waldo County, 63 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 298 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 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 45.0093, -69.3855. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Waldo County, ME 63 km (39 mi) NNW of here earthquakes near Waldo County
Somerset County, ME 71 km (44 mi) SE of here earthquakes near Somerset County
Penobscot County, ME 72 km (45 mi) SW of here earthquakes near Penobscot County
Kennebec County, ME 72 km (45 mi) NNE of here earthquakes near Kennebec County
Franklin County, ME 81 km (50 mi) E of here earthquakes near Franklin County
Hancock County, ME 94 km (58 mi) WNW of here earthquakes near Hancock County

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

Aftershocks so far

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

  1. 1.6 3 km SE of Madison, Maine
  2. 2.0 5 km ENE of Dover-Foxcroft, Maine
  3. 2.0 7 km ESE of Dover-Foxcroft, 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.