QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Big Spring, TX

Yes: an earthquake was likely felt in Big Spring in the last 24 hours. M 2.5, 41 km (26 mi) ESE of Big Spring, at 5:05 pm CST on 11 November 2026 (23:05 UTC); the estimated shaking in Big Spring was intensity II (weak). Every earthquake near Big Spring

This page: a magnitude 1.7 earthquake was recorded 34 km (21 mi) west-northwest of Big Spring, TX, at 9:47 pm CST on 20 January 2024 (03:47 UTC), 3.0 km deep.

USGS: 13 km SSW of Ackerly, Texas

54 km (33 mi) NE of Midland, TX

9:47 pm CST, Jan 20, 2024 · · 3.0 km deep · released about 11 lb of TNT

10 km30 km60 km120 km N Martin County 21 kmHoward County 35 kmDawson County 39 kmBorden County 48 kmGlasscock County 66 kmMidland County 70 kmAndrews County 81 kmMitchell County 82 kmLynn County 85 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
9:47 pm CST on 20 January 2024 ()
Where
34 km (21 mi) west-northwest of Big Spring, TX · earthquakes near Big Spring
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 1.7 (ml)
Depth
3.0 km below the surface
Felt
no reports yet
Nearest
Martin County, 21 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1022 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 12 km (7 mi) from the epicentre. In Big Spring, 34 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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

The largest earthquake within 50 km since 2016 was M 5.2 on 2022-12-16 — about 180,000 times the energy of this one.

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 32.4180, -101.7830. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Martin County, TX 21 km (13 mi) SW earthquakes near Martin County
Howard County, TX 35 km (22 mi) ESE earthquakes near Howard County
Dawson County, TX 39 km (24 mi) NNW earthquakes near Dawson County
Borden County, TX 48 km (30 mi) NE earthquakes near Borden County
Glasscock County, TX 66 km (41 mi) SSE earthquakes near Glasscock County
Midland County, TX 70 km (44 mi) SSW earthquakes near Midland County

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

Aftershocks so far

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

  1. 1.6 37 km NW of Stanton, Texas
  2. 2.2 19 km NW of Stanton, Texas
  3. 1.6 34 km ENE of McKinney Acres, Texas
  4. 3.8 37 km SSW of Los Ybanez, Texas
  5. 1.5 33 km ENE of McKinney Acres, Texas
  6. 1.6 37 km NW of Stanton, Texas
  7. 1.7 12 km W of Forsan, Texas
  8. 1.6 19 km SE of Ackerly, Texas
  9. 2.2 32 km WSW of Ackerly, Texas
  10. 1.6 10 km SSE of Ackerly, Texas
  11. 1.6 8 km ESE of Ackerly, Texas
  12. 1.7 31 km WSW of Ackerly, Texas
  13. 1.5 30 km WSW of Ackerly, Texas
  14. 1.6 33 km SSW of Los Ybanez, Texas
  15. 1.8 31 km WSW of Ackerly, 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.