QuakeIndex

quarry blast · reviewed by a seismologist

M 1.7ml

2 km ESE of Rocky Mountain, Oklahoma

· 0.0 km deep · released about 9.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Adair County 13 kmCherokee County 26 kmSequoyah County 33 kmWashington County 51 kmCrawford County 51 kmMuskogee County 62 kmDelaware County 66 kmHaskell County 72 kmMayes County 72 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 1.7 (ml)
Depth
0.0 km below the surface
Felt
no reports yet
Nearest
Adair County, 13 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 866 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 9.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 99× the energy of this one
  4. This earthquake M 1.7 about 9.6 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 35.7997, -94.7370. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Adair County, OK 13 km (8 mi) SW of here earthquakes near Adair County
Cherokee County, OK 26 km (16 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 51 km (32 mi) WSW of here earthquakes near Washington County
Crawford County, AR 51 km (32 mi) WNW of here earthquakes near Crawford County
Muskogee County, OK 62 km (38 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

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

  1. 1.8 3 km SW of Hulbert, Oklahoma
  2. 1.8 2 km SE of Zeb, Oklahoma
  3. 1.9 2 km SE of Zeb, Oklahoma
  4. 1.9 4 km SW of Hulbert, Oklahoma
  5. 1.8 4 km SW of Hulbert, Oklahoma
  6. 1.6 0 km SSE of Rocky Mountain, Oklahoma
  7. 1.8 3 km WSW of Hulbert, Oklahoma
  8. 1.6 3 km SE of Sour John, Oklahoma
  9. 1.8 1 km ENE of Notiechtown, Oklahoma
  10. 1.8 3 km SW of Hulbert, Oklahoma
  11. 2.0 2 km SE of Zeb, Oklahoma
  12. 1.7 3 km SSW of Hulbert, Oklahoma
  13. 2.1 3 km SE of Zeb, Oklahoma
  14. 1.6 3 km SW of Hulbert, Oklahoma
  15. 1.7 1 km SE of Rocky Mountain, 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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