QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

2 km W of Morristown, New Jersey

· 5.0 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Morris County 7 kmEssex County 23 kmUnion County 23 kmSomerset County 27 kmPassaic County 32 kmHudson County 37 kmSussex County 41 kmMiddlesex County 41 kmBergen County 41 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 1.7 (ml)
Depth
5.0 km below the surface
Felt
172 reports · strongest reported intensity IV
Nearest
Morris County, 7 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 904 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 172 people have reported feeling it to USGS.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 970,000× the energy of this one
  3. Around the size people start to feel M 3.0 86× the energy of this one
  4. This earthquake M 1.7 about 11 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 40.7987, -74.5138. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Morris County, NJ 7 km (5 mi) SSE of here earthquakes near Morris County
Essex County, NJ 23 km (14 mi) W of here earthquakes near Essex County
Union County, NJ 23 km (14 mi) NW of here earthquakes near Union County
Somerset County, NJ 27 km (17 mi) NNE of here earthquakes near Somerset County
Passaic County, NJ 32 km (20 mi) SW of here earthquakes near Passaic County
Hudson County, NJ 37 km (23 mi) WNW of here earthquakes near Hudson County

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

Aftershocks so far

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

  1. 2.1 6 km W of Gladstone, New Jersey
  2. 1.5 5 km E of Califon, New Jersey
  3. 1.5 5 km NNE of Whitehouse Station, New Jersey
  4. 1.5 5 km N of Whitehouse Station, New Jersey
  5. 1.5 3 km NNE of Whitehouse Station, New Jersey
  6. 1.8 4 km SW of Gladstone, New Jersey
  7. 1.9 5 km SW of Gladstone, New Jersey
  8. 1.7 6 km ESE of Califon, New Jersey
  9. 1.5 5 km ESE of Califon, New Jersey
  10. 1.9 5 km SW of Gladstone, New Jersey
  11. 2.6 5 km WSW of Gladstone, New Jersey
  12. 1.6 6 km NNE of Whitehouse Station, New Jersey
  13. 1.6 6 km NNE of Whitehouse Station, New Jersey
  14. 1.5 7 km WSW of Gladstone, New Jersey
  15. 2.2 6 km NNE of Whitehouse Station, 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

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