QuakeIndex

mining explosion · reviewed by a seismologist

M 2.6ml

9 km N of San Jose, Arizona

· 0.0 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Graham County 25 kmGreenlee County 50 kmGrant County 117 kmCochise County 120 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 2.6 (ml)
Depth
0.0 km below the surface
Felt
no reports yet
Nearest
Graham County, 25 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 302 days ago

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

USGS catalogues this as mining explosion, not an earthquake.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 32.9076, -109.6119. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Graham County, AZ 25 km (16 mi) E of here earthquakes near Graham County
Greenlee County, AZ 50 km (31 mi) SW of here earthquakes near Greenlee County
Grant County, NM 117 km (72 mi) W of here earthquakes near Grant County
Cochise County, AZ 120 km (74 mi) N of here earthquakes near Cochise County
Hidalgo County, NM 138 km (86 mi) NW of here earthquakes near Hidalgo County
Gila County, AZ 148 km (92 mi) SE of here earthquakes near Gila 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. 2.8 0 km NE of Clifton, 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.