QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

4 km W of Tremont, Maine

· 5.0 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hancock County 34 kmKnox County 56 kmWaldo County 62 kmLincoln County 93 kmWashington County 101 kmKennebec County 110 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 1.9 (ml)
Depth
5.0 km below the surface
Felt
19 reports · strongest reported intensity IV
Nearest
Hancock County, 34 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1687 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 19 people have reported feeling it to USGS.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 44.2583, -68.4029. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hancock County, ME 34 km (21 mi) S of here earthquakes near Hancock County
Knox County, ME 56 km (35 mi) ENE of here earthquakes near Knox County
Waldo County, ME 62 km (38 mi) ESE of here earthquakes near Waldo County
Lincoln County, ME 93 km (58 mi) ENE of here earthquakes near Lincoln County
Washington County, ME 101 km (63 mi) SW of here earthquakes near Washington County
Kennebec County, ME 110 km (68 mi) E of here earthquakes near Kennebec County

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

Aftershocks so far

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

  1. 1.8 2 km NNW of Ellsworth, Maine
  2. 1.5 4 km WNW of Milbridge, Maine
  3. 1.8 6 km ESE of Brooklin, Maine
  4. 2.5 4 km SW of Vinalhaven, Maine
  5. 1.8 4 km SW of Blue Hill, Maine
  6. 1.5 2 km ESE of Eastbrook, Maine
  7. 1.9 6 km SE of North Penobscot, Maine
  8. 1.6 6 km ESE of Dedham, Maine
  9. 2.0 7 km E of Dedham, Maine
  10. 2.0 7 km ESE of Dedham, Maine
  11. 3.3 7 km ESE of Dedham, Maine
  12. 1.8 7 km ESE of Dedham, Maine
  13. 1.9 8 km ESE of Dedham, Maine
  14. 1.9 4 km WNW of Steuben, Maine
  15. 1.9 7 km E of Dedham, 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.