QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

17 km NNE of Midland, Texas

· 8.7 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Martin County 19 kmMidland County 37 kmGlasscock County 54 kmHoward County 55 kmEctor County 60 kmAndrews County 63 kmDawson County 67 kmBorden County 84 kmUpton County 88 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
Magnitude
M 2.1 (ml)
Depth
8.7 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Martin County, 19 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 87 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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.

Where

Epicentre 32.1430, -101.9970. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Martin County, TX 19 km (12 mi) S of here earthquakes near Martin County
Midland County, TX 37 km (23 mi) N of here earthquakes near Midland County
Glasscock County, TX 54 km (34 mi) NW of here earthquakes near Glasscock County
Howard County, TX 55 km (34 mi) WSW of here earthquakes near Howard County
Ector County, TX 60 km (37 mi) ENE of here earthquakes near Ector County
Andrews County, TX 63 km (39 mi) ESE of here earthquakes near Andrews County

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

Aftershocks so far

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

  1. 1.8 35 km ENE of McKinney Acres, Texas
  2. 1.6 10 km WSW of Stanton, Texas
  3. 1.7 37 km SSW of Los Ybanez, Texas
  4. 2.5 29 km SSE of Midland, Texas
  5. 1.7 11 km W of Forsan, Texas
  6. 1.5 14 km E of Stanton, Texas
  7. 2.3 34 km SSW of Los Ybanez, Texas
  8. 1.5 16 km ESE of Stanton, Texas
  9. 1.6 15 km W of Stanton, Texas
  10. 1.6 29 km SSE of Midland, Texas
  11. 1.6 11 km WSW of Stanton, Texas
  12. 1.7 11 km WSW of Stanton, Texas
  13. 1.5 11 km WSW of Stanton, Texas
  14. 1.8 12 km WSW of Stanton, Texas
  15. 2.6 12 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.2 on 2022-12-16 — it released about 45,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.