QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4mb_lg

2 km N of Paramus, New Jersey

· 8.2 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bergen County 1 kmPassaic County 20 kmRockland County 21 kmNew York County 23 kmBronx County 23 kmEssex County 24 kmHudson County 26 kmWestchester County 35 kmKings County 38 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
Magnitude
M 2.4 (mb_lg)
Depth
8.2 km below the surface
Felt
979 reports · strongest reported intensity V
Nearest
Bergen County, 1 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 418 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 979 people have reported feeling it to USGS.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 40.9663, -74.0804. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bergen County, NJ 1 km (1 mi) NNW of here earthquakes near Bergen County
Passaic County, NJ 20 km (12 mi) ESE of here earthquakes near Passaic County
Rockland County, NY 21 km (13 mi) SSW of here earthquakes near Rockland County
New York County, NY 23 km (14 mi) NNW of here earthquakes near New York County
Bronx County, NY 23 km (14 mi) NW of here earthquakes near Bronx County
Essex County, NJ 24 km (15 mi) NE of here earthquakes near Essex County

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

Aftershocks so far

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

  1. 1.5 2 km SW of Purchase, New York
  2. 2.2 1 km E of Elmsford, New York
  3. 1.5 3 km NNW of Chappaqua, New York
  4. 2.8 1 km N of Hillsdale, New Jersey
  5. 3.0 0 km W of Little Ferry, New Jersey
  6. 2.0 3 km SE of Randolph, New Jersey
  7. 1.6 3 km SSE of Randolph, New Jersey

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.