QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

16 km NNE of Hermleigh, Texas

· 3.4 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Scurry County 19 kmFisher County 29 kmKent County 45 kmMitchell County 56 kmNolan County 59 kmStonewall County 62 kmBorden County 68 kmGarza County 71 kmJones County 79 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 2.7 (ml)
Depth
3.4 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Scurry County, 19 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1769 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 32.7786, -100.7152. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Scurry County, TX 19 km (12 mi) ENE of here earthquakes near Scurry County
Fisher County, TX 29 km (18 mi) W of here earthquakes near Fisher County
Kent County, TX 45 km (28 mi) S of here earthquakes near Kent County
Mitchell County, TX 56 km (35 mi) NNE of here earthquakes near Mitchell County
Nolan County, TX 59 km (37 mi) NNW of here earthquakes near Nolan County
Stonewall County, TX 62 km (39 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

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

  1. 2.5 16 km NE of Hermleigh, Texas
  2. 2.4 18 km NNW of Snyder, Texas
  3. 2.1 23 km N of Snyder, Texas
  4. 1.5 16 km NE of Hermleigh, Texas
  5. 2.2 16 km NE of Hermleigh, Texas
  6. 1.8 19 km N of Snyder, Texas
  7. 2.9 17 km NNE of Hermleigh, Texas
  8. 2.4 western Texas
  9. 2.7 western Texas
  10. 2.2 27 km SW of Girard, Texas
  11. 2.3 western Texas
  12. 2.0 19 km N of Snyder, Texas
  13. 1.9 17 km NNE of Hermleigh, Texas
  14. 3.2 18 km NNE of Hermleigh, Texas
  15. 3.0 17 km NNE 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 89 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.