QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4ml

15 km NE of Amarillo, Texas

· 6.8 km deep · released about 1.9 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Potter County 20 kmCarson County 33 kmRandall County 43 kmArmstrong County 50 kmMoore County 60 kmHutchinson County 66 kmGray County 81 kmOldham County 82 kmSwisher County 88 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 3.4 (ml)
Depth
6.8 km below the surface
Felt
17 reports · strongest reported intensity III
Nearest
Potter County, 20 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 512 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 17 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.9 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 89,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 2,800× the energy of this one
  4. This earthquake M 3.4 about 1.9 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 4× more

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 35.3146, -101.7018. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Potter County, TX 20 km (12 mi) ESE of here earthquakes near Potter County
Carson County, TX 33 km (21 mi) WSW of here earthquakes near Carson County
Randall County, TX 43 km (27 mi) NNE of here earthquakes near Randall County
Armstrong County, TX 50 km (31 mi) NW of here earthquakes near Armstrong County
Moore County, TX 60 km (38 mi) SSE of here earthquakes near Moore County
Hutchinson County, TX 66 km (41 mi) SSW of here earthquakes near Hutchinson County

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

Aftershocks so far

31 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. 2.2 11 km WNW of Fritch, Texas
  5. 2.0 8 km NE of Amarillo, Texas
  6. 2.1 7 km NNE of Amarillo, Texas
  7. 1.9 8 km NE of Amarillo, Texas
  8. 1.7 8 km NE of Amarillo, Texas
  9. 2.0 18 km E of Boys Ranch, Texas
  10. 2.5 8 km NE of Amarillo, Texas
  11. 2.0 11 km NE of Amarillo, Texas
  12. 1.9 8 km NE of Amarillo, Texas
  13. 2.2 8 km NE of Amarillo, Texas
  14. 2.7 8 km NE of Amarillo, Texas
  15. 2.3 8 km NE 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

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