QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Lamesa, TX

No earthquake was likely felt in Lamesa in the 24 hours to 3:30 pm CST (21:30 UTC). The last one was M 3.7, 244 km (152 mi) WSW, at 4:27 pm CDT on 28 October 2026, estimated intensity II (weak) in town; 2 felt reports to USGS. Every earthquake near Lamesa

This page: a magnitude 1.5 earthquake was recorded 30 km (19 mi) south of Lamesa, TX, at 1:03 am CDT on 20 May 2026 (06:03 UTC), 8.3 km deep.

USGS: 27 km WSW of Ackerly, Texas

51 km (32 mi) NNE of Midland, TX

1:03 am CDT, May 20, 2026 · · 8.3 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Martin County 18 kmDawson County 31 kmHoward County 56 kmBorden County 60 kmAndrews County 63 kmGaines County 66 kmMidland County 73 kmLynn County 80 kmGlasscock County 81 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
1:03 am CDT on 20 May 2026 ()
Where
30 km (19 mi) south of Lamesa, TX · earthquakes near Lamesa
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 1.5 (ml)
Depth
8.3 km below the surface
Felt
no reports yet
Nearest
Martin County, 18 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 177 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Lamesa, 30 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 350,000 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 32.4710, -102.0010. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Martin County, TX 18 km (11 mi) SSE earthquakes near Martin County
Dawson County, TX 31 km (19 mi) N earthquakes near Dawson County
Howard County, TX 56 km (35 mi) ESE earthquakes near Howard County
Borden County, TX 60 km (38 mi) ENE earthquakes near Borden County
Andrews County, TX 63 km (39 mi) WSW earthquakes near Andrews County
Gaines County, TX 66 km (41 mi) WNW earthquakes near Gaines County

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

Aftershocks so far

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

  1. 1.9 16 km NW of Stanton, Texas
  2. 2.4 28 km WSW of Ackerly, Texas
  3. 1.5 36 km SSW of Los Ybanez, Texas
  4. 2.4 16 km N of Midland, Texas
  5. 2.8 36 km SSW of Los Ybanez, Texas
  6. 1.7 29 km WSW of Ackerly, Texas
  7. 2.6 10 km WSW of Stanton, Texas
  8. 2.9 12 km W of Stanton, Texas
  9. 2.0 33 km E of McKinney Acres, Texas
  10. 2.0 12 km SSW of Ackerly, Texas
  11. 1.8 38 km ENE of McKinney Acres, Texas
  12. 1.6 17 km SE of Ackerly, Texas
  13. 1.7 11 km WSW of Stanton, Texas
  14. 3.1 12 km WSW of Stanton, Texas
  15. 1.5 13 km WSW of Stanton, 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.