QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

36 km ENE of Greenville, Maine

· 1.5 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Piscataquis County 32 kmPenobscot County 49 kmSomerset County 60 kmFranklin County 120 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
1.5 km below the surface
Felt
2 reports · strongest reported intensity I
Nearest
Piscataquis County, 32 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1666 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 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 45.6375, -69.2042. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Piscataquis County, ME 32 km (20 mi) SSW of here earthquakes near Piscataquis County
Penobscot County, ME 49 km (30 mi) WNW of here earthquakes near Penobscot County
Somerset County, ME 60 km (38 mi) ENE of here earthquakes near Somerset County
Franklin County, ME 120 km (74 mi) NE of here earthquakes near Franklin County
Aroostook County, ME 128 km (79 mi) SSW of here earthquakes near Aroostook County
Hancock County, ME 136 km (85 mi) NNW of here earthquakes near Hancock County

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

Aftershocks so far

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

  1. 1.5 15 km ENE of Greenville, Maine
  2. 2.0 5 km ENE of Dover-Foxcroft, Maine
  3. 1.5 20 km WSW of Millinocket, Maine
  4. 1.5 23 km WNW of Millinocket, Maine
  5. 2.5 35 km NW of Millinocket, Maine
  6. 1.9 3 km SW of Sebec, Maine
  7. 1.6 4 km NNE of Bowerbank, Maine
  8. 1.5 31 km W of Millinocket, Maine
  9. 1.5 24 km WNW of Millinocket, Maine
  10. 1.8 19 km SW of Millinocket, Maine
  11. 1.8 38 km WNW of Millinocket, Maine
  12. 1.8 Maine
  13. 1.6 Maine
  14. 1.6 34 km WNW of Millinocket, Maine
  15. 1.8 33 km WNW of Millinocket, 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.