QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Bangor, ME

No earthquake was likely felt in Bangor in the 24 hours to 5:43 am EST (10:43 UTC). The last one was M 3.8, 241 km (149 mi) SW, at 10:22 am EST on 27 January 2025, estimated intensity II (weak) in town; 42,440 felt reports to USGS. Every earthquake near Bangor

This page: a magnitude 1.8 earthquake was recorded 47 km (29 mi) south-southeast of Bangor, ME, at 11:13 pm EDT on 24 March 2025 (03:13 UTC), 10 km deep.

USGS: 4 km SW of Blue Hill, Maine

11:13 pm EDT, Mar 24, 2025 · · 10 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Hancock County 28 kmWaldo County 40 kmKnox County 51 kmLincoln County 83 kmKennebec County 90 kmWashington County 103 kmSagadahoc County 111 kmPenobscot 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
11:13 pm EDT on 24 March 2025 ()
Where
47 km (29 mi) south-southeast of Bangor, ME · earthquakes near Bangor
Magnitude
M 1.8 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Hancock County, 28 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 533 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 13 km (8 mi) from the epicentre. In Bangor, 47 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Sedgwick, Penobscot, Castine, Surry, Deer Isle, Trenton.

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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 44.3914, -68.6271. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hancock County, ME 28 km (17 mi) NE earthquakes near Hancock County
Waldo County, ME 40 km (25 mi) WNW earthquakes near Waldo County
Knox County, ME 51 km (32 mi) SW earthquakes near Knox County
Lincoln County, ME 83 km (52 mi) WSW earthquakes near Lincoln County
Kennebec County, ME 90 km (56 mi) W earthquakes near Kennebec County
Washington County, ME 103 km (64 mi) NE earthquakes near Washington County

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

Aftershocks so far

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

  1. 1.5 2 km WSW of Jackson, Maine
  2. 1.8 2 km NNW of Ellsworth, Maine
  3. 1.8 6 km ESE of Brooklin, Maine
  4. 2.5 4 km SW of Vinalhaven, Maine
  5. 2.1 3 km NE of Morrill, 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.