QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9mb_lg

20 km WSW of Panhandle, Texas

· 5.0 km deep · released about 680 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carson County 26 kmPotter County 34 kmArmstrong County 37 kmRandall County 43 kmHutchinson County 68 kmGray County 71 kmMoore County 72 kmDonley County 76 kmSwisher County 82 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 (mb_lg)
Depth
5.0 km below the surface
Felt
8 reports · strongest reported intensity V
Nearest
Carson County, 26 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2017 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have reported feeling it to USGS.

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 35.2448, -101.5672. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carson County, TX 26 km (16 mi) SW of here earthquakes near Carson County
Potter County, TX 34 km (21 mi) ESE of here earthquakes near Potter County
Armstrong County, TX 37 km (23 mi) NNW of here earthquakes near Armstrong County
Randall County, TX 43 km (27 mi) NE of here earthquakes near Randall County
Hutchinson County, TX 68 km (43 mi) SSW of here earthquakes near Hutchinson County
Gray County, TX 71 km (44 mi) WSW of here earthquakes near Gray County

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

Aftershocks so far

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

  1. 2.8 13 km S of Claude, Texas
  2. 1.8 8 km NE of Amarillo, Texas
  3. 1.8 8 km NE of Amarillo, Texas
  4. 2.0 8 km NE of Amarillo, Texas
  5. 2.1 7 km NNE of Amarillo, Texas
  6. 1.9 8 km NE of Amarillo, Texas
  7. 1.7 8 km NE of Amarillo, Texas
  8. 2.5 8 km NE of Amarillo, Texas
  9. 2.0 11 km NE of Amarillo, Texas
  10. 1.9 8 km NE of Amarillo, Texas
  11. 2.2 8 km NE of Amarillo, Texas
  12. 2.7 8 km NE of Amarillo, Texas
  13. 2.3 8 km NE of Amarillo, Texas
  14. 2.8 15 km NE of Amarillo, Texas
  15. 2.6 13 km NNE of Amarillo, 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.