QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

6 km ESE of Casco, Maine

· 5.8 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cumberland County 22 kmAndroscoggin County 28 kmSagadahoc County 49 kmOxford County 61 kmCarroll County 61 kmYork County 65 kmKennebec County 73 kmLincoln County 75 kmStrafford County 90 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 1.6 (ml)
Depth
5.8 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Cumberland County, 22 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2794 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 43.9866, -70.4518. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cumberland County, ME 22 km (14 mi) NNW of here earthquakes near Cumberland County
Androscoggin County, ME 28 km (17 mi) SW of here earthquakes near Androscoggin County
Sagadahoc County, ME 49 km (31 mi) W of here earthquakes near Sagadahoc County
Oxford County, ME 61 km (38 mi) SSE of here earthquakes near Oxford County
Carroll County, NH 61 km (38 mi) ENE of here earthquakes near Carroll County
York County, ME 65 km (40 mi) NNE of here earthquakes near York 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. 1.6 5 km SSE of Monmouth, Maine
  2. 1.8 2 km SW of Gray, Maine
  3. 1.9 8 km ENE of Lake Arrowhead, Maine
  4. 1.7 6 km S of Livermore, Maine
  5. 1.8 6 km SSE of Turner, Maine
  6. 1.7 6 km SSW of Livermore, Maine
  7. 1.6 6 km ENE of Buckfield, Maine
  8. 1.5 6 km S of Monmouth, Maine
  9. 2.5 6 km N of Turner, Maine
  10. 2.4 Maine
  11. 1.5 2 km ENE of Lewiston, Maine
  12. 1.8 2 km SSE of West Paris, Maine
  13. 1.7 5 km NW of Greene, Maine
  14. 2.1 9 km NNW of Harrison, Maine
  15. 2.2 1 km SW of Sabattus, 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.