QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1mb_lg

1 km SSE of Crown Heights, New York

· 8.3 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Dutchess County 22 kmPutnam County 27 kmOrange County 40 kmUlster County 45 kmRockland County 53 kmWestchester County 55 kmWestern Connecticut Planning Region 56 kmNorthwest Hills Planning Region 64 kmSullivan County 70 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.1 (mb_lg)
Depth
8.3 km below the surface
Felt
72 reports · strongest reported intensity IV
Nearest
Dutchess County, 22 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 752 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 72 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.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. 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 41.6267, -73.9341. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Dutchess County, NY 22 km (13 mi) SW of here earthquakes near Dutchess County
Putnam County, NY 27 km (17 mi) NW of here earthquakes near Putnam County
Orange County, NY 40 km (25 mi) NE of here earthquakes near Orange County
Ulster County, NY 45 km (28 mi) SE of here earthquakes near Ulster County
Rockland County, NY 53 km (33 mi) N of here earthquakes near Rockland County
Westchester County, NY 55 km (34 mi) NNW of here earthquakes near Westchester County

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

Aftershocks so far

No further earthquakes have 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.