Earthquake · reviewed by a seismologist
M 1.6ml
Earthquake near Big Spring, TX
Yes: an earthquake was likely felt in Big Spring in the last 24 hours. M 2.5, 41 km (26 mi) ESE of Big Spring, at 5:05 pm CST on 11 November 2026 (23:05 UTC); the estimated shaking in Big Spring was intensity II (weak). Every earthquake near Big Spring
This page: a magnitude 1.6 earthquake was recorded 48 km (30 mi) east of Big Spring, TX, at 9:58 pm CDT on 29 March 2026 (02:58 UTC), 7.3 km deep.
USGS: 18 km SSE of Westbrook, Texas
- When
- 9:58 pm CDT on 29 March 2026 ()
- Where
- 48 km (30 mi) east of Big Spring, TX · earthquakes near Big Spring
- Texas today
- every earthquake in Texas in the last 24 hours
- Magnitude
- M 1.6 (ml)
- Depth
- 7.3 km below the surface
- Felt
- no reports yet
- Nearest
- Mitchell County, 13 km NNE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 227 days ago
Earthquake alerts for Big Spring, TX
Get a notification in this browser when USGS records an earthquake near Big Spring, TX. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 2 km (1 mi) from the epicentre. In Big Spring, 48 km away, the estimate is intensity I (not felt). 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.
Earthquakes near other towns within 30 km: Colorado City.
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.
- Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- 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 4.3 on 2025-10-12 — about 11,000 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 32.1910, -100.9720. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Mitchell County, TX | 13 km (8 mi) | NNE | earthquakes near Mitchell County |
| Sterling County, TX | 40 km (25 mi) | S | earthquakes near Sterling County |
| Howard County, TX | 46 km (28 mi) | WNW | earthquakes near Howard County |
| Coke County, TX | 47 km (29 mi) | SE | earthquakes near Coke County |
| Nolan County, TX | 54 km (33 mi) | ENE | earthquakes near Nolan County |
| Scurry County, TX | 62 km (38 mi) | N | earthquakes near Scurry County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 1.6 26 km N of Sterling City, Texas
- 1.5 7 km NNE of Westbrook, Texas
- 2.3 23 km NW of Westbrook, Texas
- 1.8 23 km NW of Westbrook, Texas
- 2.2 15 km SE of Coahoma, Texas
- 1.6 24 km SSW of Westbrook, Texas
- 1.6 8 km NNW of Forsan, Texas
- 1.5 19 km NW of Westbrook, Texas
- 1.6 24 km E of Forsan, Texas
- 1.5 21 km E of Forsan, Texas
- 2.6 5 km SSW of Westbrook, Texas
- 1.7 19 km SSE of Westbrook, Texas
- 1.6 28 km E of Forsan, Texas
- 1.5 20 km NW of Westbrook, Texas
- 1.5 5 km SSW of Westbrook, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.