QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

18 km SSW of McKinney Acres, Texas

· 4.4 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Andrews County 17 kmEctor County 34 kmWinkler County 54 kmGaines County 65 kmMartin County 65 kmMidland County 71 kmCrane County 83 kmWard County 85 kmDawson County 91 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 2.1 (ml)
Depth
4.4 km below the surface
Felt
no reports yet
Nearest
Andrews County, 17 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1908 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 32.1588, -102.6327. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Andrews County, TX 17 km (11 mi) S of here earthquakes near Andrews County
Ector County, TX 34 km (21 mi) NNW of here earthquakes near Ector County
Winkler County, TX 54 km (33 mi) NE of here earthquakes near Winkler County
Gaines County, TX 65 km (40 mi) S of here earthquakes near Gaines County
Martin County, TX 65 km (41 mi) WSW of here earthquakes near Martin County
Midland County, TX 71 km (44 mi) WNW of here earthquakes near Midland County

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

Aftershocks so far

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

  1. 1.9 15 km NNW of Midland, Texas
  2. 2.3 8 km SE of Gardendale, Texas
  3. 2.9 15 km NNW of Midland, Texas
  4. 1.9 14 km NE of Jal, New Mexico
  5. 2.7 13 km NE of Jal, New Mexico
  6. 1.6 6 km S of Gardendale, Texas
  7. 3.4 30 km E of McKinney Acres, Texas
  8. 2.9 29 km E of McKinney Acres, Texas
  9. 1.8 13 km NE of Jal, New Mexico
  10. 2.2 29 km E of McKinney Acres, Texas
  11. 1.9 10 km NE of Jal, New Mexico
  12. 1.9 10 km NE of Jal, New Mexico
  13. 2.5 12 km NE of Jal, New Mexico
  14. 2.6 15 km NNW of Midland, Texas
  15. 1.8 15 km NNW of Midland, Texas

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.