QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

3 km SE of Morrill, Maine

· 5.8 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Waldo County 6 kmKnox County 43 kmKennebec County 52 kmLincoln County 57 kmHancock County 61 kmSagadahoc County 81 kmAndroscoggin County 91 kmPenobscot County 116 kmCumberland County 118 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 1.8 (ml)
Depth
5.8 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Waldo County, 6 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 619 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 44.4206, -69.1165. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Waldo County, ME 6 km (4 mi) S of here earthquakes near Waldo County
Knox County, ME 43 km (26 mi) N of here earthquakes near Knox County
Kennebec County, ME 52 km (32 mi) E of here earthquakes near Kennebec County
Lincoln County, ME 57 km (35 mi) NNE of here earthquakes near Lincoln County
Hancock County, ME 61 km (38 mi) WSW of here earthquakes near Hancock County
Sagadahoc County, ME 81 km (50 mi) NE of here earthquakes near Sagadahoc 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. 2.5 4 km SW of Vinalhaven, Maine
  2. 2.1 3 km NE of Morrill, Maine
  3. 1.8 4 km SW of Blue Hill, 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.