QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Midland, TX

No earthquake was likely felt in Midland in the 24 hours to 2:00 am CST (08:00 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 1.6 earthquake was recorded 9 km (5 mi) southeast of Midland, TX, at 6:59 am CDT on 18 August 2021 (11:59 UTC), 12 km deep.

USGS: 8 km SE of Midland, Texas

13 km (8 mi) SE of Midland, TX

6:59 am CDT, Aug 18, 2021 · · 12 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Midland County 14 kmMartin County 42 kmGlasscock County 48 kmEctor County 50 kmUpton County 65 kmHoward County 68 kmAndrews County 72 kmCrane County 72 kmReagan County 79 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
6:59 am CDT on 18 August 2021 ()
Where
9 km (5 mi) southeast of Midland, TX · earthquakes near Midland
Texas today
every earthquake in Texas in the last 24 hours
Magnitude
M 1.6 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Midland County, 14 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1902 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 Midland, 9 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 4,000 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 31.9354, -102.0196. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Midland County, TX 14 km (8 mi) S earthquakes near Midland County
Martin County, TX 42 km (26 mi) N earthquakes near Martin County
Glasscock County, TX 48 km (30 mi) E earthquakes near Glasscock County
Ector County, TX 50 km (31 mi) W earthquakes near Ector County
Upton County, TX 65 km (40 mi) S earthquakes near Upton County
Howard County, TX 68 km (42 mi) NE earthquakes near Howard 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. 3.7 14 km ENE of Gardendale, Texas
  2. 3.6 14 km ENE of Gardendale, Texas
  3. 3.1 14 km ENE of Gardendale, Texas
  4. 1.9 10 km NNE of Odessa, Texas
  5. 2.2 23 km W of Garden City, Texas
  6. 2.4 23 km W of Garden City, Texas
  7. 2.5 22 km W of Garden City, Texas
  8. 2.3 10 km SSE of Gardendale, Texas
  9. 2.0 20 km NW of Stanton, Texas
  10. 2.4 16 km NW of Midland, Texas
  11. 2.2 10 km NNE of Odessa, Texas
  12. 2.0 6 km SE of Gardendale, Texas
  13. 2.4 7 km ESE of Gardendale, Texas
  14. 2.1 23 km W of Garden City, Texas
  15. 2.7 15 km NNW of Midland, 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.