QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml(texnet)

9 km NE of Hermleigh, Texas

· 2.2 km deep · released about 1,300 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Scurry County 21 kmFisher County 28 kmMitchell County 49 kmNolan County 51 kmKent County 54 kmStonewall County 67 kmBorden County 69 kmJones County 77 kmGarza County 77 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 3.1 (ml(texnet))
Depth
2.2 km below the surface
Felt
no reports yet
Nearest
Scurry County, 21 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1023 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× more

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 32.7050, -100.6980. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Scurry County, TX 21 km (13 mi) ESE of here earthquakes near Scurry County
Fisher County, TX 28 km (17 mi) W of here earthquakes near Fisher County
Mitchell County, TX 49 km (31 mi) NNE of here earthquakes near Mitchell County
Nolan County, TX 51 km (32 mi) NNW of here earthquakes near Nolan County
Kent County, TX 54 km (33 mi) S of here earthquakes near Kent County
Stonewall County, TX 67 km (42 mi) SW of here earthquakes near Stonewall County

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

Aftershocks so far

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

  1. 2.2 17 km NE of Hermleigh, Texas
  2. 2.4 17 km NE of Hermleigh, Texas
  3. 2.8 16 km NE of Hermleigh, Texas
  4. 3.8 17 km NE of Hermleigh, Texas
  5. 2.3 17 km NE of Hermleigh, Texas
  6. 2.8 14 km NNW of Snyder, Texas
  7. 1.8 9 km NE of Hermleigh, Texas
  8. 3.3 15 km NE of Hermleigh, Texas
  9. 2.2 17 km SW of Rotan, Texas
  10. 2.2 17 km SW of Rotan, Texas
  11. 2.3 8 km NE of Hermleigh, Texas
  12. 2.1 16 km NNE of Hermleigh, Texas
  13. 2.2 15 km NE of Hermleigh, Texas
  14. 1.5 8 km NE of Hermleigh, Texas
  15. 2.2 19 km WSW of Rotan, 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 250 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.