QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

6 km S of Ackerly, Texas

· 10 km deep · released about 60 lb of TNT

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10 km30 km60 km120 km N Martin County 29 kmHoward County 32 kmDawson County 38 kmBorden County 40 kmGlasscock County 69 kmMitchell County 76 kmMidland County 77 kmLynn County 80 kmScurry 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
Magnitude
M 2.2 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Martin County, 29 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1809 days ago

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

How big was it?

This earthquake released about 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 32.4655, -101.7162. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Martin County, TX 29 km (18 mi) NE of here earthquakes near Martin County
Howard County, TX 32 km (20 mi) NW of here earthquakes near Howard County
Dawson County, TX 38 km (23 mi) SE of here earthquakes near Dawson County
Borden County, TX 40 km (25 mi) SW of here earthquakes near Borden County
Glasscock County, TX 69 km (43 mi) NNW of here earthquakes near Glasscock County
Mitchell County, TX 76 km (48 mi) WNW of here earthquakes near Mitchell County

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

Aftershocks so far

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

  1. 1.8 17 km NW of Stanton, Texas
  2. 1.6 33 km E of McKinney Acres, Texas
  3. 1.5 38 km ENE of McKinney Acres, Texas
  4. 1.9 18 km SSE of Ackerly, Texas
  5. 1.5 33 km NNW of Midland, Texas
  6. 1.9 33 km NNW of Midland, Texas
  7. 1.5 33 km NNW of Midland, Texas
  8. 1.6 37 km ENE of McKinney Acres, Texas
  9. 2.3 34 km WSW of Ackerly, Texas
  10. 1.7 34 km NNW of Midland, Texas
  11. 2.0 16 km SSE of Ackerly, Texas
  12. 2.1 17 km SSE of Ackerly, Texas
  13. 3.0 16 km SSE of Ackerly, Texas
  14. 2.3 38 km SSW of Los Ybanez, Texas
  15. 2.2 37 km SSW of Los Ybanez, 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 4.0 on 2020-12-31 — it released about 500 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.