QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

9 km SE of York, Arizona

· 5.0 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Greenlee County 47 kmGraham County 70 kmGrant County 71 kmHidalgo County 109 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 2.8 (ml)
Depth
5.0 km below the surface
Felt
14 reports · strongest reported intensity III
Nearest
Greenlee County, 47 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1962 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 14 people have reported feeling it to USGS.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 32.8241, -109.1356. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Greenlee County, AZ 47 km (29 mi) SSE of here earthquakes near Greenlee County
Graham County, AZ 70 km (44 mi) E of here earthquakes near Graham County
Grant County, NM 71 km (44 mi) W of here earthquakes near Grant County
Hidalgo County, NM 109 km (68 mi) NNW of here earthquakes near Hidalgo County
Cochise County, AZ 125 km (78 mi) NNE of here earthquakes near Cochise County
Catron County, NM 138 km (86 mi) SSW of here earthquakes near Catron County

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

Aftershocks so far

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

  1. 2.8 0 km NE of Clifton, Arizona
  2. 2.6 9 km N of San Jose, Arizona
  3. 2.9 10 km S of Franklin, Arizona
  4. 2.5 1 km SSE of Franklin, Arizona
  5. 3.3 3 km WSW of Franklin, Arizona
  6. 2.8 4 km SSW of Duncan, Arizona
  7. 2.7 3 km NNE of Franklin, Arizona
  8. 3.0 11 km S of Virden, New Mexico
  9. 3.1 15 km S of Virden, New Mexico
  10. 2.8 Arizona
  11. 2.6 2 km NNE of Morenci, Arizona
  12. 2.7 6 km WSW of Franklin, 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.