QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

1 km WSW of Chico, Texas

· 1.4 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Wise County 17 kmJack County 34 kmMontague County 44 kmParker County 57 kmDenton County 65 kmClay County 67 kmCooke County 68 kmTarrant County 75 kmPalo Pinto County 76 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
1.4 km below the surface
Felt
no reports yet
Nearest
Wise County, 17 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1502 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 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 33.2895, -97.8126. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Wise County, TX 17 km (10 mi) WNW of here earthquakes near Wise County
Jack County, TX 34 km (21 mi) E of here earthquakes near Jack County
Montague County, TX 44 km (27 mi) S of here earthquakes near Montague County
Parker County, TX 57 km (35 mi) N of here earthquakes near Parker County
Denton County, TX 65 km (40 mi) W of here earthquakes near Denton County
Clay County, TX 67 km (41 mi) SE of here earthquakes near Clay County

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

Aftershocks so far

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

  1. 1.8 4 km SSE of Chico, Texas
  2. 1.8 9 km S of Jacksboro, Texas
  3. 2.2 10 km S of Jacksboro, 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.