QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

10 km S of Franklin, Arizona

· 13 km deep · released about 680 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 67 kmGreenlee County 74 kmHidalgo County 82 kmGraham County 84 kmCochise County 106 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 2.9 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Grant County, 67 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 817 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 32.5845, -109.0755. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, NM 67 km (42 mi) WSW of here earthquakes near Grant County
Greenlee County, AZ 74 km (46 mi) SSE of here earthquakes near Greenlee County
Hidalgo County, NM 82 km (51 mi) NNW of here earthquakes near Hidalgo County
Graham County, AZ 84 km (52 mi) ESE of here earthquakes near Graham County
Cochise County, AZ 106 km (66 mi) NE of here earthquakes near Cochise County

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

Aftershocks so far

1 earthquake has been recorded within 50 km since this one.

  1. 2.6 8 km W of San Simon, Arizona

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.