QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Hennessey, OK

No earthquake was likely felt in Hennessey in the 24 hours to 2:23 pm CST (20:23 UTC). The last one was M 3.4, 57 km (35 mi) SSW, at 5:53 am CST on 7 November 2026, estimated intensity III (weak) in town; 23 felt reports to USGS. Every earthquake near Hennessey

This page: a magnitude 1.8 earthquake was recorded 3 km (2 mi) east-southeast of Hennessey, OK, at 8:48 pm CDT on 14 October 2025 (01:48 UTC), 6.1 km deep.

USGS: 3 km ESE of Hennessey, Oklahoma

77 km (48 mi) NNW of Oklahoma City, OK · 34 km (21 mi) S of Enid, OK

8:48 pm CDT, Oct 14, 2025 · · 6.1 km deep · released about 14 lb of TNT

10 km30 km60 km120 km N Kingfisher County 18 kmGarfield County 32 kmLogan County 42 kmBlaine County 56 kmCanadian County 63 kmNoble County 65 kmMajor County 65 kmOklahoma County 73 kmGrant County 77 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
8:48 pm CDT on 14 October 2025 ()
Where
3 km (2 mi) east-southeast of Hennessey, OK · earthquakes near Hennessey
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.8 (ml)
Depth
6.1 km below the surface
Felt
no reports yet
Nearest
Kingfisher County, 18 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 393 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 14 km (9 mi) from the epicentre. In Hennessey, 3 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Hennessey 3 km, intensity II. Estimated for each town centre; each link is that town's own record.

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 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.6 on 2018-04-09 — about 18,000 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 36.0982, -97.8635. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kingfisher County, OK 18 km (11 mi) SSW earthquakes near Kingfisher County
Garfield County, OK 32 km (20 mi) NNE earthquakes near Garfield County
Logan County, OK 42 km (26 mi) ESE earthquakes near Logan County
Blaine County, OK 56 km (35 mi) WSW earthquakes near Blaine County
Canadian County, OK 63 km (39 mi) S earthquakes near Canadian County
Noble County, OK 65 km (40 mi) ENE earthquakes near Noble 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. 1.7 5 km W of Dover, Oklahoma
  2. 1.8 4 km N of Dover, Oklahoma
  3. 1.6 15 km WNW of Okarche, Oklahoma
  4. 1.6 15 km WNW of Okarche, Oklahoma
  5. 1.5 16 km NW of Okarche, Oklahoma
  6. 1.6 14 km WNW of Okarche, Oklahoma
  7. 1.6 4 km SSE of Dover, Oklahoma
  8. 1.7 5 km SSE of Dover, Oklahoma
  9. 1.6 9 km ESE of Dover, Oklahoma
  10. 1.7 15 km SSW of Loyal, Oklahoma
  11. 1.6 5 km NW of Mulhall, Oklahoma
  12. 1.8 5 km N of North Enid, Oklahoma
  13. 1.7 9 km W of Loyal, Oklahoma
  14. 1.6 10 km W of Loyal, Oklahoma
  15. 2.5 9 km W of Loyal, 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.