QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

33 km SSW of Lac-Mégantic, Canada

· 5.0 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Franklin County 56 kmCoos County 75 kmSomerset County 83 kmEssex County 86 kmOxford County 90 kmOrleans County 112 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
Franklin County, 56 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1844 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 45.2877, -70.9774. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Franklin County, ME 56 km (35 mi) NW of here earthquakes near Franklin County
Coos County, NH 75 km (46 mi) NNE of here earthquakes near Coos County
Somerset County, ME 83 km (52 mi) WSW of here earthquakes near Somerset County
Essex County, VT 86 km (54 mi) NE of here earthquakes near Essex County
Oxford County, ME 90 km (56 mi) NNW of here earthquakes near Oxford County
Orleans County, VT 112 km (70 mi) ENE of here earthquakes near Orleans County

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

Aftershocks so far

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

  1. 1.7 5 km NNW of Dallas, Maine
  2. 1.7 20 km WNW of Lac-Mégantic, Canada

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.