QuakeIndex

quarry blast · reviewed by a seismologist

M 1.7ml

9 km WSW of Pawhuska, Oklahoma

· 0.0 km deep · released about 9.3 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Osage County 3 kmPawnee County 43 kmWashington County 48 kmChautauqua County 60 kmKay County 66 kmTulsa County 73 kmCowley County 75 kmNowata County 76 kmNoble County 76 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
Osage County, 3 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1594 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 9.3 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 3.0 100× the energy of this one
  4. This earthquake M 1.7 about 9.3 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 36.6403, -96.4418. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Osage County, OK 3 km (2 mi) WNW of here earthquakes near Osage County
Pawnee County, OK 43 km (27 mi) NNE of here earthquakes near Pawnee County
Washington County, OK 48 km (30 mi) W of here earthquakes near Washington County
Chautauqua County, KS 60 km (37 mi) SSW of here earthquakes near Chautauqua County
Kay County, OK 66 km (41 mi) ESE of here earthquakes near Kay County
Tulsa County, OK 73 km (45 mi) NW of here earthquakes near Tulsa County

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

Aftershocks so far

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

  1. 2.4 15 km NW of Pawnee, Oklahoma
  2. 1.5 12 km NW of Pawnee, Oklahoma
  3. 2.2 12 km NW of Pawnee, Oklahoma
  4. 2.4 17 km NE of Pawhuska, Oklahoma
  5. 3.2 11 km NW of Pawnee, Oklahoma
  6. 2.1 12 km NW of Pawnee, Oklahoma
  7. 1.7 13 km NW of Pawnee, Oklahoma
  8. 2.2 12 km NW of Pawnee, Oklahoma
  9. 1.8 5 km N of Terlton, Oklahoma
  10. 1.7 4 km ESE of Skedee, Oklahoma
  11. 1.9 9 km NNW of Pawnee, Oklahoma
  12. 3.0 9 km NNW of Pawnee, Oklahoma
  13. 1.7 12 km NW of Pawnee, Oklahoma
  14. 1.9 Oklahoma
  15. 2.8 10 km NW of Pawnee, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.8 on 2016-09-03 — it released about 1,600,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.