QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8mb_lg

Earthquake near Hillsdale, NJ

No earthquake was likely felt in Hillsdale in the 24 hours to 4:19 pm EST (21:19 UTC). The last one was M 2.2, 20 km (13 mi) ENE, at 10:17 am EDT on 10 March 2026, estimated intensity II (weak) in town; 1,474 felt reports to USGS. Every earthquake near Hillsdale

This page: a magnitude 2.8 earthquake was recorded in Hillsdale, NJ, at 12:11 pm EDT on 5 August 2025 (16:11 UTC), 12 km deep. 3,546 people have reported feeling it to USGS.

USGS: 1 km N of Hillsdale, New Jersey

40 km (25 mi) NNW of New York, NY · 15 km (9 mi) NE of Paterson, NJ

12:11 pm EDT, Aug 5, 2025 · · 12 km deep · released about 480 lb of TNT

10 km30 km60 km120 km N Bergen County 7 kmRockland County 16 kmPassaic County 22 kmBronx County 24 kmNew York County 27 kmWestchester County 29 kmEssex County 31 kmHudson County 32 kmKings County 43 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
12:11 pm EDT on 5 August 2025 ()
Where
in Hillsdale, NJ · earthquakes near Hillsdale
New Jersey today
every earthquake in New Jersey in the last 24 hours
Magnitude
M 2.8 (mb_lg)
Depth
12 km below the surface
Felt
3,546 reports · strongest reported intensity IV
Nearest
Bergen County, 7 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 364 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 61 km (38 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Woodcliff Lake, Park Ridge, Westwood, River Vale, Montvale, Old Tappan.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 41.0145, -74.0383. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Bergen County, NJ 7 km (4 mi) SSW earthquakes near Bergen County
Rockland County, NY 16 km (10 mi) N earthquakes near Rockland County
Passaic County, NJ 22 km (14 mi) W earthquakes near Passaic County
Bronx County, NY 24 km (15 mi) SE earthquakes near Bronx County
New York County, NY 27 km (17 mi) SSE earthquakes near New York County
Westchester County, NY 29 km (18 mi) ENE earthquakes near Westchester 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. 1.6 4 km SE of Randolph, New Jersey
  2. 1.5 2 km SW of Purchase, New York
  3. 2.2 1 km E of Elmsford, New York
  4. 1.5 3 km NNW of Chappaqua, New York

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.