QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

11 km NNE of Guerrero, Mexico

· 2.9 km deep · released about 680 lb of TNT

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10 km30 km60 km120 km N Maverick County 36 kmDimmit County 55 kmZavala County 75 kmKinney County 105 kmUvalde County 118 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 2.9 (ml)
Depth
2.9 km below the surface
Felt
no reports yet
Nearest
Maverick County, 36 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 457 days ago

A magnitude 2.9 earthquake was recorded 11 km NNE of Guerrero, Mexico at 05:38 UTC on 2020-12-01. This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

Earthquakes near other towns within 30 km: Rosita South, Rosita North.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 28.4040, -100.3240. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Maverick County, TX 36 km (23 mi) N earthquakes near Maverick County
Dimmit County, TX 55 km (34 mi) E earthquakes near Dimmit County
Zavala County, TX 75 km (47 mi) NE earthquakes near Zavala County
Kinney County, TX 105 km (65 mi) N earthquakes near Kinney County
Uvalde County, TX 118 km (74 mi) NNE earthquakes near Uvalde County
Webb County, TX 120 km (75 mi) SE earthquakes near Webb 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. 2.7 17 km NE of El Indio, Texas
  2. 2.2 21 km W of Carrizo Springs, Texas
  3. 2.0 13 km WSW of Asherton, Texas
  4. 2.0 17 km E of El Indio, Texas
  5. 3.6 18 km E of El Indio, Texas
  6. 2.3 28 km SW of Asherton, Texas
  7. 2.3 5 km SW of Carrizo Hill, Texas
  8. 2.2 15 km ENE of El Indio, Texas
  9. 2.5 19 km E of El Indio, Texas
  10. 2.5 19 km E of El Indio, Texas
  11. 2.6 16 km ENE of El Indio, Texas
  12. 2.2 18 km E of El Indio, Texas
  13. 2.4 8 km WSW of Asherton, Texas
  14. 2.7 7 km ESE of El Indio, Texas
  15. 3.4 3 km S of El Indio, 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

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