Earthquake · reviewed by a seismologist
M 1.8ml
2 km SW of Gray, Maine
- When
- Magnitude
- M 1.8 (ml)
- Depth
- 9.3 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Cumberland County, 7 km SSE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 200 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has 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 43.8676, -70.3566. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Cumberland County, ME | 7 km (4 mi) | NNW of here | earthquakes near Cumberland County |
| Androscoggin County, ME | 35 km (22 mi) | SSW of here | earthquakes near Androscoggin County |
| Sagadahoc County, ME | 41 km (26 mi) | W of here | earthquakes near Sagadahoc County |
| York County, ME | 55 km (34 mi) | NNE of here | earthquakes near York County |
| Carroll County, NH | 68 km (42 mi) | E of here | earthquakes near Carroll County |
| Lincoln County, ME | 69 km (43 mi) | WSW of here | earthquakes near Lincoln County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
1 earthquake has been recorded within 50 km since this one.
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.