QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

2 km N of Livermore, New Hampshire

· 5.0 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carroll County 29 kmGrafton County 42 kmCoos County 63 kmBelknap County 64 kmOxford County 68 kmCaledonia County 72 kmEssex County 76 kmOrange County 80 kmCumberland County 90 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 1.5 (ml)
Depth
5.0 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Carroll County, 29 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2241 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 44.0927, -71.3769. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carroll County, NH 29 km (18 mi) NNW of here earthquakes near Carroll County
Grafton County, NH 42 km (26 mi) ENE of here earthquakes near Grafton County
Coos County, NH 63 km (39 mi) S of here earthquakes near Coos County
Belknap County, NH 64 km (40 mi) N of here earthquakes near Belknap County
Oxford County, ME 68 km (42 mi) SW of here earthquakes near Oxford County
Caledonia County, VT 72 km (45 mi) SE of here earthquakes near Caledonia County

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

Aftershocks so far

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

  1. 1.6 2 km SW of Center Sandwich, New Hampshire
  2. 1.8 3 km SW of Center Sandwich, New Hampshire
  3. 2.9 4 km SW of Center Sandwich, New Hampshire
  4. 1.5 4 km WSW of North Woodstock, New Hampshire
  5. 1.7 5 km SSE of Lisbon, New Hampshire
  6. 1.9 0 km NNE of Gorham, New Hampshire
  7. 2.9 0 km SSW of Gorham, New Hampshire
  8. 2.0 5 km SW of Albany, New Hampshire
  9. 2.0 3 km ENE of Sandwich, New Hampshire
  10. 1.6 1 km SW of Sandwich, 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.