Earthquake · reviewed by a seismologist
M 2.1mb_lg
18 km NE of New Shoreham, Rhode Island
- When
- Magnitude
- M 2.1 (mb_lg)
- Depth
- 5.0 km below the surface
- Felt
- 2 reports · strongest reported intensity I
- Nearest
- Washington County, 25 km NW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1526 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 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
- Magna, Utah 2020 M 5.7 250,000× the energy of this one
- Around the size people start to feel M 3.0 22× the energy of this one
- This earthquake M 2.1 about 43 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 41.2699, -71.3791. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Washington County, RI | 25 km (15 mi) | SE of here | earthquakes near Washington County |
| Newport County, RI | 27 km (17 mi) | SSW of here | earthquakes near Newport County |
| Kent County, RI | 48 km (30 mi) | SSE of here | earthquakes near Kent County |
| Bristol County, RI | 49 km (31 mi) | S of here | earthquakes near Bristol County |
| Dukes County, MA | 58 km (36 mi) | WSW of here | earthquakes near Dukes County |
| Bristol County, MA | 58 km (36 mi) | SSW of here | earthquakes near Bristol County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
4 earthquakes have been recorded within 50 km since this one.
- 1.9 4 km ESE of Narragansett, Rhode Island
- 1.6 4 km S of Bristol, Rhode Island
- 2.0 18 km NE of New Shoreham, Rhode Island
- 2.2 18 km SSE of Narragansett Pier, Rhode Island
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.