QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

3 km SSE of Sugar Hill, New Hampshire

· 5.4 km deep · released about 30 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grafton County 29 kmCaledonia County 40 kmOrange County 51 kmCarroll County 59 kmEssex County 60 kmCoos County 65 kmWashington County 66 kmBelknap County 80 kmOrleans County 80 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 2.0 (ml)
Depth
5.4 km below the surface
Felt
no reports yet
Nearest
Grafton County, 29 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3699 days ago

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

How big was it?

This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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 44.1883, -71.7883. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grafton County, NH 29 km (18 mi) N of here earthquakes near Grafton County
Caledonia County, VT 40 km (25 mi) SE of here earthquakes near Caledonia County
Orange County, VT 51 km (32 mi) ENE of here earthquakes near Orange County
Carroll County, NH 59 km (37 mi) NW of here earthquakes near Carroll County
Essex County, VT 60 km (37 mi) S of here earthquakes near Essex County
Coos County, NH 65 km (40 mi) SW of here earthquakes near Coos 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. 2.6 3 km SE of Haverhill, New Hampshire
  2. 1.5 4 km WSW of North Woodstock, New Hampshire
  3. 1.7 5 km SSE of Lisbon, New Hampshire
  4. 2.0 7 km WSW of Maidstone, Vermont
  5. 1.5 2 km N of Livermore, New Hampshire
  6. 1.6 9 km NW of Groton, Vermont
  7. 2.3 10 km NNW of Livermore, New Hampshire

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.