QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

2 km W of Bedford, New Hampshire

· 11 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hillsborough County 15 kmRockingham County 36 kmMerrimack County 41 kmMiddlesex County 53 kmStrafford County 56 kmCheshire County 58 kmBelknap County 64 kmEssex County 65 kmSullivan County 72 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 2.2 (ml)
Depth
11 km below the surface
Felt
369 reports · strongest reported intensity V
Nearest
Hillsborough County, 15 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3146 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 369 people have reported feeling it to USGS.

How big was it?

This earthquake released about 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 42.9458, -71.5412. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hillsborough County, NH 15 km (10 mi) ENE of here earthquakes near Hillsborough County
Rockingham County, NH 36 km (23 mi) W of here earthquakes near Rockingham County
Merrimack County, NH 41 km (25 mi) SSE of here earthquakes near Merrimack County
Middlesex County, MA 53 km (33 mi) NNW of here earthquakes near Middlesex County
Strafford County, NH 56 km (35 mi) SW of here earthquakes near Strafford County
Cheshire County, NH 58 km (36 mi) E of here earthquakes near Cheshire County

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

Aftershocks so far

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

  1. 1.5 2 km S of Bedford, New Hampshire
  2. 2.1 2 km NNW of Milford, New Hampshire
  3. 1.7 2 km NE of Danville, New Hampshire
  4. 1.9 2 km N of Webster, New Hampshire
  5. 1.5 5 km SSE of Boscawen, New Hampshire
  6. 1.6 2 km S of Henniker, New Hampshire
  7. 1.7 3 km SW of Townsend, Massachusetts
  8. 2.0 2 km WNW of Loudon, New Hampshire
  9. 2.7 5 km SW of Chichester, New Hampshire
  10. 2.1 4 km SE of Warner, New Hampshire
  11. 1.9 0 km SW of Bow Bog, New Hampshire
  12. 2.3 3 km NNE of Antrim, New Hampshire
  13. 1.8 5 km NNW of Contoocook, New Hampshire
  14. 1.9 4 km SSE of Canterbury, New Hampshire
  15. 1.8 4 km S of Canterbury, 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.