QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

25 km N of Coahoma, Texas

· 7.9 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Borden County 26 kmHoward County 26 kmMitchell County 46 kmScurry County 47 kmDawson County 62 kmMartin County 63 kmGarza County 74 kmGlasscock County 75 kmSterling County 81 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 1.5 (ml)
Depth
7.9 km below the surface
Felt
no reports yet
Nearest
Borden County, 26 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 76 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 32.5220, -101.3350. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Borden County, TX 26 km (16 mi) SSE of here earthquakes near Borden County
Howard County, TX 26 km (16 mi) NNE of here earthquakes near Howard County
Mitchell County, TX 46 km (28 mi) WNW of here earthquakes near Mitchell County
Scurry County, TX 47 km (29 mi) WSW of here earthquakes near Scurry County
Dawson County, TX 62 km (39 mi) ESE of here earthquakes near Dawson County
Martin County, TX 63 km (39 mi) ENE of here earthquakes near Martin County

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

Aftershocks so far

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

  1. 1.7 19 km NW of Westbrook, Texas
  2. 1.5 15 km NNW of Sand Springs, Texas
  3. 1.5 14 km NNW of Sand Springs, Texas
  4. 2.3 6 km SE of Ackerly, Texas
  5. 1.5 12 km W of Forsan, Texas
  6. 1.5 14 km SW of Westbrook, Texas
  7. 1.5 19 km NW of Westbrook, Texas
  8. 1.5 22 km S of Westbrook, Texas
  9. 1.5 6 km ESE of Big Spring, Texas
  10. 1.5 7 km NNE of Westbrook, Texas
  11. 1.7 11 km NNW of Snyder, Texas
  12. 1.7 17 km SE of Ackerly, Texas
  13. 1.9 17 km SE of Ackerly, Texas
  14. 2.8 17 km SE of Ackerly, Texas
  15. 2.2 12 km W of Forsan, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2021-12-28 — it released about 45,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.