QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

2 km ESE of Eastbrook, Maine

· 5.0 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hancock County 16 kmWashington County 59 kmWaldo County 74 kmPenobscot County 89 kmKnox County 95 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
5.0 km below the surface
Felt
no reports yet
Nearest
Hancock County, 16 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1148 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 44.6733, -68.2321. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hancock County, ME 16 km (10 mi) NE of here earthquakes near Hancock County
Washington County, ME 59 km (37 mi) WSW of here earthquakes near Washington County
Waldo County, ME 74 km (46 mi) ENE of here earthquakes near Waldo County
Penobscot County, ME 89 km (55 mi) SSE of here earthquakes near Penobscot County
Knox County, ME 95 km (59 mi) NE of here earthquakes near Knox County
Lincoln County, ME 127 km (79 mi) NE of here earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 1.6 15 km S of Lowell, Maine
  2. 1.8 2 km NNW of Ellsworth, Maine
  3. 1.5 4 km WNW of Milbridge, Maine
  4. 1.8 4 km SW of Blue Hill, Maine
  5. 1.7 1 km NE of Aurora, 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.