QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

14 km ENE of Hermleigh, Texas

· 9.4 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fisher County 21 kmScurry County 29 kmNolan County 45 kmMitchell County 51 kmKent County 58 kmStonewall County 65 kmJones County 70 kmBorden County 77 kmTaylor 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 2.3 (ml)
Depth
9.4 km below the surface
Felt
no reports yet
Nearest
Fisher County, 21 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 978 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 32.6830, -100.6170. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fisher County, TX 21 km (13 mi) WSW of here earthquakes near Fisher County
Scurry County, TX 29 km (18 mi) ESE of here earthquakes near Scurry County
Nolan County, TX 45 km (28 mi) NNW of here earthquakes near Nolan County
Mitchell County, TX 51 km (32 mi) NE of here earthquakes near Mitchell County
Kent County, TX 58 km (36 mi) SSE of here earthquakes near Kent County
Stonewall County, TX 65 km (40 mi) SSW of here earthquakes near Stonewall County

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

Aftershocks so far

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

  1. 1.6 17 km NE of Hermleigh, Texas
  2. 1.9 16 km NE of Hermleigh, Texas
  3. 2.1 17 km NE of Hermleigh, Texas
  4. 1.8 15 km N of Snyder, Texas
  5. 1.6 15 km N of Snyder, Texas
  6. 2.9 15 km N of Snyder, Texas
  7. 1.8 17 km NE of Hermleigh, Texas
  8. 2.3 7 km NE of Hermleigh, Texas
  9. 1.7 16 km NE of Hermleigh, Texas
  10. 1.6 8 km NE of Hermleigh, Texas
  11. 1.9 18 km WSW of Rotan, Texas
  12. 1.7 16 km N of Snyder, Texas
  13. 1.5 10 km W of Rotan, Texas
  14. 1.5 15 km WSW of Rotan, Texas
  15. 1.6 12 km N of Snyder, 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 4.7 on 2023-02-16 — it released about 4,000 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.