QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

33 km SE of Balmorhea, Texas

· 1.9 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Reeves County 62 kmJeff Davis County 70 kmPecos County 73 kmWard County 88 kmBrewster County 111 kmPresidio County 115 kmLoving County 118 kmCrane County 118 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 1.8 (ml)
Depth
1.9 km below the surface
Felt
no reports yet
Nearest
Reeves County, 62 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 891 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 30.7900, -103.4820. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Reeves County, TX 62 km (38 mi) SSE of here earthquakes near Reeves County
Jeff Davis County, TX 70 km (44 mi) ENE of here earthquakes near Jeff Davis County
Pecos County, TX 73 km (45 mi) W of here earthquakes near Pecos County
Ward County, TX 88 km (55 mi) SSW of here earthquakes near Ward County
Brewster County, TX 111 km (69 mi) NNW of here earthquakes near Brewster County
Presidio County, TX 115 km (71 mi) NE of here earthquakes near Presidio 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. 2.0 13 km N of Balmorhea, Texas
  2. 2.5 9 km NNE of Balmorhea, Texas
  3. 3.0 24 km SW of Coyanosa, Texas
  4. 2.2 22 km SW of Coyanosa, Texas
  5. 1.7 10 km NNE of Balmorhea, Texas
  6. 1.5 34 km SSE of Lindsay, Texas
  7. 2.5 24 km SW of Coyanosa, Texas
  8. 1.5 28 km ESE of Balmorhea, Texas
  9. 1.7 32 km ESE of Balmorhea, Texas
  10. 2.2 16 km SSE of Toyah, Texas
  11. 2.1 16 km SSE of Toyah, Texas
  12. 1.5 23 km SSE of Lindsay, Texas
  13. 1.5 22 km SSE of Lindsay, Texas
  14. 1.9 33 km SE of Balmorhea, Texas
  15. 1.6 17 km S of Lindsay, 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.

On USGS

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