QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Midland, TX

No earthquake was likely felt in Midland in the 24 hours to 4:31 pm CST (22:31 UTC). The last one was M 2.5, 35 km (22 mi) ESE, at 4:17 am CST on 4 November 2026, estimated intensity II (weak) in town. Every earthquake near Midland

This page: a magnitude 2.5 earthquake was recorded 12 km (8 mi) north of Midland, TX, at 5:14 pm CDT on 20 September 2021 (22:14 UTC), 9.5 km deep. 7 people have reported feeling it to USGS.

USGS: 12 km N of Midland, Texas

9 km (6 mi) N of Midland, TX

5:14 pm CDT, Sep 20, 2021 · · 9.5 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Martin County 26 kmMidland County 34 kmEctor County 49 kmAndrews County 56 kmGlasscock County 61 kmHoward County 66 kmDawson County 72 kmUpton County 84 kmCrane County 84 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 CDT on 20 September 2021 ()
Where
12 km (8 mi) north of Midland, TX · earthquakes near Midland
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 2.5 (ml)
Depth
9.5 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Martin County, 26 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1805 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 45 km (28 mi) from the epicentre. In Midland, 12 km away, the estimate is intensity III (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.

Likely felt in: Midland 12 km, intensity III · Gardendale 28 km, intensity II · Stanton 30 km, intensity II · Odessa 38 km, intensity II. Estimated for each town centre; each link is that town's own record.

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

The largest earthquake within 50 km since 2016 was M 4.0 on 2020-12-31 — about 180 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 32.1066, -102.1021. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Martin County, TX 26 km (16 mi) NNE earthquakes near Martin County
Midland County, TX 34 km (21 mi) SSE earthquakes near Midland County
Ector County, TX 49 km (31 mi) WSW earthquakes near Ector County
Andrews County, TX 56 km (35 mi) WNW earthquakes near Andrews County
Glasscock County, TX 61 km (38 mi) ESE earthquakes near Glasscock County
Howard County, TX 66 km (41 mi) ENE earthquakes near Howard County

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

Aftershocks so far

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

  1. 2.6 17 km N of Stanton, Texas
  2. 2.4 17 km N of Stanton, Texas
  3. 4.6 17 km N of Stanton, Texas
  4. 2.4 6 km SE of Gardendale, Texas
  5. 2.1 6 km SE of Gardendale, Texas
  6. 2.0 21 km W of Garden City, Texas
  7. 3.3 14 km ENE of Gardendale, Texas
  8. 1.9 14 km ENE of Gardendale, Texas
  9. 1.6 13 km ENE of Gardendale, Texas
  10. 3.7 14 km ENE of Gardendale, Texas
  11. 3.6 14 km ENE of Gardendale, Texas
  12. 3.1 14 km ENE of Gardendale, Texas
  13. 1.9 10 km NNE of Odessa, Texas
  14. 2.2 23 km W of Garden City, Texas
  15. 2.4 23 km W of Garden City, 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.