QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

5 km WNW of Albany, New Hampshire

· 5.0 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carroll County 11 kmGrafton County 49 kmBelknap County 52 kmOxford County 71 kmCumberland County 74 kmYork County 75 kmCoos County 76 kmStrafford County 77 kmMerrimack County 83 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 1.9 (ml)
Depth
5.0 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Carroll County, 11 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1777 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 43.9675, -71.2291. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carroll County, NH 11 km (7 mi) N of here earthquakes near Carroll County
Grafton County, NH 49 km (31 mi) E of here earthquakes near Grafton County
Belknap County, NH 52 km (32 mi) NNE of here earthquakes near Belknap County
Oxford County, ME 71 km (44 mi) SW of here earthquakes near Oxford County
Cumberland County, ME 74 km (46 mi) WNW of here earthquakes near Cumberland County
York County, ME 75 km (47 mi) NW of here earthquakes near York County

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

Aftershocks so far

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

  1. 1.6 2 km SW of Center Sandwich, New Hampshire
  2. 2.2 4 km NW of Gilford, New Hampshire
  3. 1.8 3 km SW of Center Sandwich, New Hampshire
  4. 2.9 4 km SW of Center Sandwich, New Hampshire
  5. 1.5 4 km WSW of North Woodstock, New Hampshire
  6. 2.3 5 km NE of Wolfeboro, New Hampshire
  7. 1.9 0 km NNE of Gorham, New Hampshire
  8. 2.9 0 km SSW of Gorham, New Hampshire
  9. 2.0 5 km SW of Albany, New Hampshire
  10. 2.0 3 km ENE of Sandwich, New Hampshire
  11. 2.1 9 km NNW of Harrison, Maine
  12. 1.6 1 km SW of Sandwich, New Hampshire
  13. 1.5 2 km N 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.