QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Van Horn, TX

USGS: 9 km ENE of Van Horn, Texas

5:14 pm CST, Feb 11, 2018 · · 5.0 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Culberson County 46 kmJeff Davis County 72 kmHudspeth County 74 kmReeves County 101 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
5:14 pm CST on 11 February 2018 ()
Where
10 km (6 mi) ENE of Van Horn, TX · earthquakes near Van Horn
Magnitude
M 2.5 (ml)
Depth
5.0 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Culberson County, 46 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3074 days ago

A magnitude 2.5 earthquake was recorded 10 km (6 mi) ENE of Van Horn, TX, at 5:14 pm CST on 11 February 2018 (23:14 UTC). 1 person has reported feeling it to USGS. 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 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 31.0690, -104.7342. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Culberson County, TX 46 km (29 mi) NNE earthquakes near Culberson County
Jeff Davis County, TX 72 km (44 mi) SE earthquakes near Jeff Davis County
Hudspeth County, TX 74 km (46 mi) NW earthquakes near Hudspeth County
Reeves County, TX 101 km (63 mi) ENE earthquakes near Reeves County
Presidio County, TX 127 km (79 mi) SSE earthquakes near Presidio County
Loving County, TX 141 km (87 mi) NE earthquakes near Loving County

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

Aftershocks so far

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

  1. 2.6 33 km SW of Van Horn, Texas
  2. 2.2 39 km N of Van Horn, Texas
  3. 2.4 17 km NNW of Valentine, Texas
  4. 2.5 21 km NW of Valentine, Texas
  5. 1.7 13 km N of Van Horn, Texas
  6. 1.9 32 km WNW of Valentine, Texas
  7. 2.6 21 km NNE of Van Horn, Texas
  8. 2.6 18 km SW of Van Horn, 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.