QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

13 km ENE of Hermleigh, Texas

· 0.0 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fisher County 22 kmScurry County 27 kmNolan County 47 kmMitchell County 51 kmKent County 56 kmStonewall County 65 kmJones County 71 kmBorden County 76 kmTaylor County 82 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
0.0 km below the surface
Felt
no reports yet
Nearest
Fisher County, 22 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1353 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 32.6907, -100.6294. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fisher County, TX 22 km (14 mi) WSW of here earthquakes near Fisher County
Scurry County, TX 27 km (17 mi) ESE of here earthquakes near Scurry County
Nolan County, TX 47 km (29 mi) NNW of here earthquakes near Nolan County
Mitchell County, TX 51 km (32 mi) NNE of here earthquakes near Mitchell County
Kent County, TX 56 km (35 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

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

  1. 2.6 15 km NE of Hermleigh, Texas
  2. 2.4 18 km N of Snyder, Texas
  3. 1.6 16 km NE of Hermleigh, Texas
  4. 1.7 16 km NE of Hermleigh, Texas
  5. 3.5 16 km NE of Hermleigh, Texas
  6. 2.4 16 km NE of Hermleigh, Texas
  7. 2.4 16 km NE of Hermleigh, Texas
  8. 1.6 16 km NE of Hermleigh, Texas
  9. 2.6 16 km NE of Hermleigh, Texas
  10. 1.6 16 km NE of Hermleigh, Texas
  11. 1.7 16 km NE of Hermleigh, Texas
  12. 2.7 western Texas
  13. 2.6 16 km NE of Hermleigh, Texas
  14. 2.7 16 km NE of Hermleigh, Texas
  15. 2.0 17 km NE of Hermleigh, 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 4.0 on 2019-09-30 — it released about 710 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.