QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

6 km ESE of Brooklin, Maine

· 10 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hancock County 38 kmKnox County 48 kmWaldo County 56 kmLincoln County 85 kmKennebec County 102 kmWashington County 108 kmSagadahoc 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 1.8 (ml)
Depth
10 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Hancock County, 38 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 311 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 44.2351, -68.5031. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hancock County, ME 38 km (24 mi) SSW of here earthquakes near Hancock County
Knox County, ME 48 km (30 mi) ENE of here earthquakes near Knox County
Waldo County, ME 56 km (35 mi) ESE of here earthquakes near Waldo County
Lincoln County, ME 85 km (53 mi) ENE of here earthquakes near Lincoln County
Kennebec County, ME 102 km (64 mi) E of here earthquakes near Kennebec County
Washington County, ME 108 km (67 mi) SW of here earthquakes near Washington 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. 1.8 2 km NNW of Ellsworth, 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.