QuakeIndex

quarry blast · reviewed by a seismologist

M 1.6ml

0 km SSE of Rocky Mountain, Oklahoma

· 0.0 km deep · released about 7.3 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Adair County 15 kmCherokee County 24 kmSequoyah County 33 kmWashington County 53 kmCrawford County 53 kmMuskogee County 60 kmDelaware County 66 kmWagoner County 70 kmMayes County 70 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
Adair County, 15 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 212 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 7.3 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 7.3 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 35.8002, -94.7640. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Adair County, OK 15 km (9 mi) SW of here earthquakes near Adair County
Cherokee County, OK 24 km (15 mi) ESE of here earthquakes near Cherokee County
Sequoyah County, OK 33 km (21 mi) N of here earthquakes near Sequoyah County
Washington County, AR 53 km (33 mi) WSW of here earthquakes near Washington County
Crawford County, AR 53 km (33 mi) WNW of here earthquakes near Crawford County
Muskogee County, OK 60 km (37 mi) ENE of here earthquakes near Muskogee County

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

Aftershocks so far

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

  1. 1.4 4 km SW of Hulbert, Oklahoma
  2. 1.4 2 km N of Notiechtown, Oklahoma
  3. 1.7 2 km SE of Zeb, Oklahoma
  4. 1.5 2 km NNW of Notiechtown, Oklahoma
  5. 1.5 4 km SW of Hulbert, Oklahoma
  6. 1.7 2 km SE of Zeb, Oklahoma
  7. 1.5 2 km SSE of Rocky Mountain, Oklahoma
  8. 1.7 3 km SW of Hulbert, Oklahoma
  9. 1.5 1 km SE of Rocky Mountain, Oklahoma
  10. 1.6 4 km SW of Hulbert, Oklahoma
  11. 1.6 2 km NNE of Notiechtown, Oklahoma
  12. 1.7 3 km SW of Hulbert, Oklahoma
  13. 1.8 3 km SW of Hulbert, Oklahoma
  14. 1.8 2 km SE of Zeb, Oklahoma
  15. 1.9 2 km SE of Zeb, 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

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