QuakeIndex

quarry blast · reviewed by a seismologist

M 1.6ml

4 km WSW of Mill Creek, Oklahoma

· 0.0 km deep · released about 7.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Murray County 20 kmJohnston County 22 kmPontotoc County 40 kmCarter County 41 kmMarshall County 42 kmGarvin County 53 kmCoal County 58 kmLove County 59 kmBryan 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 1.6 (ml)
Depth
0.0 km below the surface
Felt
no reports yet
Nearest
Murray County, 20 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1500 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as quarry blast, not an earthquake.

How big was it?

This earthquake released about 7.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.1 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 34.3932, -96.8790. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Murray County, OK 20 km (13 mi) ESE of here earthquakes near Murray County
Johnston County, OK 22 km (14 mi) WNW of here earthquakes near Johnston County
Pontotoc County, OK 40 km (25 mi) SSW of here earthquakes near Pontotoc County
Carter County, OK 41 km (25 mi) ENE of here earthquakes near Carter County
Marshall County, OK 42 km (26 mi) NNW of here earthquakes near Marshall County
Garvin County, OK 53 km (33 mi) SE of here earthquakes near Garvin County

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

Aftershocks so far

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

  1. 1.8 2 km WSW of Mill Creek, Oklahoma
  2. 1.6 10 km W of Davis, Oklahoma
  3. 1.6 3 km SW of Mill Creek, Oklahoma
  4. 1.6 6 km N of Mill Creek, Oklahoma
  5. 1.9 12 km SE of Katie, Oklahoma
  6. 1.6 3 km SW of Mill Creek, Oklahoma
  7. 1.6 8 km ESE of Ada, Oklahoma
  8. 1.5 Oklahoma
  9. 1.7 3 km WSW of Mill Creek, Oklahoma
  10. 1.7 1 km SSW of Mill Creek, Oklahoma
  11. 1.6 4 km W of Mill Creek, Oklahoma
  12. 1.6 9 km N of Bromide, Oklahoma
  13. 1.7 9 km W of Davis, Oklahoma
  14. 1.5 1 km W of Milburn, Oklahoma
  15. 1.6 8 km SW of Mill Creek, 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.