QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

0 km WSW of Sherwood Shores, Texas

· 17 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Marshall County 20 kmGrayson County 28 kmLove County 41 kmCooke County 43 kmBryan County 53 kmJohnston County 54 kmCarter County 62 kmFannin County 72 kmMurray County 74 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 1.9 (ml)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Marshall County, 20 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1852 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 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 730,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 520,000× the energy of this one
  3. Around the size people start to feel M 3.0 46× the energy of this one
  4. This earthquake M 1.9 about 21 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 33.8508, -96.8205. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Marshall County, OK 20 km (13 mi) SSW of here earthquakes near Marshall County
Grayson County, TX 28 km (18 mi) NNW of here earthquakes near Grayson County
Love County, OK 41 km (25 mi) ESE of here earthquakes near Love County
Cooke County, TX 43 km (27 mi) ENE of here earthquakes near Cooke County
Bryan County, OK 53 km (33 mi) WSW of here earthquakes near Bryan County
Johnston County, OK 54 km (33 mi) SSW of here earthquakes near Johnston County

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

Aftershocks so far

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

  1. 2.3 13 km ENE of Leon, Oklahoma
  2. 1.5 6 km SSE of Tishomingo, Oklahoma
  3. 1.5 4 km W of Durant, Oklahoma
  4. 1.6 2 km NNW of Durant, Oklahoma
  5. 1.7 1 km WSW of Durant, Oklahoma
  6. 2.0 2 km SW of Durant, Oklahoma
  7. 2.4 4 km WSW of Durant, Oklahoma
  8. 1.7 3 km SW of Armstrong, Oklahoma
  9. 1.7 3 km SW of Armstrong, Oklahoma
  10. 2.1 0 km SW of Durant, Oklahoma
  11. 1.5 13 km ENE of Leon, Oklahoma
  12. 2.3 6 km SSE of Tishomingo, Oklahoma
  13. 1.8 13 km W of Marietta, Oklahoma
  14. 1.9 6 km SSE of Tishomingo, Oklahoma
  15. 1.7 5 km S of Tishomingo, Oklahoma

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.