QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

4 km NNW of IXL, Oklahoma

· 16 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Okfuskee County 13 kmCreek County 39 kmOkmulgee County 42 kmLincoln County 45 kmSeminole County 48 kmHughes County 58 kmPottawatomie County 63 kmMcIntosh County 71 kmTulsa 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 1.8 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Okfuskee County, 13 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1469 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 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× the energy of this one
  4. This earthquake M 1.8 about 14 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 35.5607, -96.4162. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Okfuskee County, OK 13 km (8 mi) NW of here earthquakes near Okfuskee County
Creek County, OK 39 km (24 mi) S of here earthquakes near Creek County
Okmulgee County, OK 42 km (26 mi) WSW of here earthquakes near Okmulgee County
Lincoln County, OK 45 km (28 mi) ESE of here earthquakes near Lincoln County
Seminole County, OK 48 km (30 mi) NNE of here earthquakes near Seminole County
Hughes County, OK 58 km (36 mi) NNW of here earthquakes near Hughes County

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

Aftershocks so far

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

  1. 2.3 8 km NW of Prague, Oklahoma
  2. 1.6 9 km E of Meeker, Oklahoma
  3. 1.6 8 km WNW of Prague, Oklahoma
  4. 5.1 8 km NW of Prague, Oklahoma
  5. 1.5 8 km NW of Prague, Oklahoma
  6. 2.3 8 km NW of Prague, Oklahoma
  7. 1.8 8 km NNW of Prague, Oklahoma
  8. 2.2 Oklahoma
  9. 2.9 7 km SSW of Chandler, Oklahoma
  10. 1.6 5 km N of Stroud, Oklahoma
  11. 1.5 5 km N of Stroud, Oklahoma
  12. 2.0 8 km NW of Prague, Oklahoma
  13. 1.6 8 km NW of Prague, Oklahoma
  14. 1.5 8 km NW of Prague, Oklahoma
  15. 2.0 8 km NW of Prague, 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 4.2 on 2017-07-14 — it released about 4,300 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.