Earthquake · reviewed by a seismologist
M 1.8ml
9 km N of Oakland, Maine
- When
- Magnitude
- M 1.8 (ml)
- Depth
- 8.1 km below the surface
- Felt
- 4 reports · strongest reported intensity IV
- Nearest
- Kennebec County, 23 km SSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 799 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.
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.
- Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 710,000× the energy of this one
- Around the size people start to feel M 3.0 63× the energy of this one
- 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.
Where
Epicentre 44.6209, -69.7040. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Kennebec County, ME | 23 km (14 mi) | NNE of here | earthquakes near Kennebec County |
| Waldo County, ME | 49 km (31 mi) | WNW of here | earthquakes near Waldo County |
| Androscoggin County, ME | 64 km (40 mi) | NE of here | earthquakes near Androscoggin County |
| Franklin County, ME | 69 km (43 mi) | SE of here | earthquakes near Franklin County |
| Lincoln County, ME | 71 km (44 mi) | NNW of here | earthquakes near Lincoln County |
| Sagadahoc County, ME | 79 km (49 mi) | N of here | earthquakes near Sagadahoc County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
6 earthquakes have been recorded within 50 km since this one.
- 1.6 3 km SE of Madison, Maine
- 1.5 7 km ESE of Cambridge, Maine
- 1.6 6 km W of Oakland, Maine
- 1.9 3 km SSW of Embden, Maine
- 2.8 6 km W of Gardiner, Maine
- 2.1 6 km NNE of Windsor, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.