QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Ardmore, OK

No earthquake was likely felt in Ardmore in the 24 hours to 11:16 pm CST (05:16 UTC). The last one was M 3.4, 180 km (112 mi) NNW, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Ardmore

This page: a magnitude 1.5 earthquake was recorded 30 km (18 mi) south-southwest of Ardmore, OK, at 4:46 am CDT on 26 October 2024 (09:46 UTC), 11 km deep.

USGS: 13 km ENE of Leon, Oklahoma

4:46 am CDT, Oct 26, 2024 · · 11 km deep · released about 5.9 lb of TNT

10 km30 km60 km120 km N Love County 6 kmCarter County 34 kmCooke County 35 kmMontague County 49 kmMarshall County 50 kmJefferson County 52 kmMurray County 64 kmGrayson County 68 kmJohnston County 73 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
4:46 am CDT on 26 October 2024 ()
Where
30 km (18 mi) south-southwest of Ardmore, OK · earthquakes near Ardmore
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.5 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Love County, 6 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 745 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Ardmore, 30 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.

Earthquakes near other towns within 30 km: Marietta, Lone Grove, Wilson.

How big was it?

This earthquake released about 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 33.9435, -97.3057. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Love County, OK 6 km (4 mi) ENE earthquakes near Love County
Carter County, OK 34 km (21 mi) N earthquakes near Carter County
Cooke County, TX 35 km (22 mi) SSE earthquakes near Cooke County
Montague County, TX 49 km (30 mi) SW earthquakes near Montague County
Marshall County, OK 50 km (31 mi) E earthquakes near Marshall County
Jefferson County, OK 52 km (33 mi) WNW earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 2.1 8 km SE of Loco, Oklahoma
  2. 2.4 10 km N of Ringling, Oklahoma
  3. 2.0 9 km NW of Healdton, Oklahoma
  4. 1.6 8 km N of Ringling, Oklahoma
  5. 2.3 9 km SE of Loco, Oklahoma
  6. 1.8 9 km WNW of Healdton, Oklahoma
  7. 1.6 7 km E of Loco, Oklahoma
  8. 1.5 11 km NW of Healdton, Oklahoma
  9. 2.2 9 km N of Ringling, Oklahoma
  10. 1.6 9 km NW of Healdton, Oklahoma
  11. 2.3 9 km N of Ringling, Oklahoma
  12. 1.5 9 km NW of Healdton, Oklahoma
  13. 1.6 9 km WNW of Healdton, Oklahoma
  14. 1.7 6 km NNE of Ringling, Oklahoma
  15. 1.9 9 km ESE of Loco, 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.