QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near Ada, OK

No earthquake was likely felt in Ada in the 24 hours to 6:19 pm CST (00:19 UTC). The last one was M 3.4, 155 km (96 mi) NW, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Ada

This page: a magnitude 2.3 earthquake was recorded 8 km (5 mi) east of Ada, OK, at 10:49 pm CDT on 29 September 2024 (03:49 UTC), 20 km deep. 2 people have reported feeling it to USGS.

USGS: 7 km E of Ada, Oklahoma

10:49 pm CDT, Sep 29, 2024 · · 20 km deep · released about 88 lb of TNT

10 km30 km60 km120 km N Pontotoc County 10 kmCoal County 35 kmSeminole County 44 kmHughes County 45 kmJohnston County 51 kmMurray County 53 kmPottawatomie County 59 kmGarvin County 66 kmAtoka County 66 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
10:49 pm CDT on 29 September 2024 ()
Where
8 km (5 mi) east of Ada, OK · earthquakes near Ada
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.3 (ml)
Depth
20 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Pontotoc County, 10 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 697 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 32 km (20 mi) from the epicentre. In Ada, 8 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: Ada 8 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 88 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 34.7660, -96.5968. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pontotoc County, OK 10 km (6 mi) WSW earthquakes near Pontotoc County
Coal County, OK 35 km (22 mi) SE earthquakes near Coal County
Seminole County, OK 44 km (27 mi) N earthquakes near Seminole County
Hughes County, OK 45 km (28 mi) NE earthquakes near Hughes County
Johnston County, OK 51 km (31 mi) S earthquakes near Johnston County
Murray County, OK 53 km (33 mi) SW earthquakes near Murray County

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

Aftershocks so far

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

  1. 1.1 4 km SSW of Mill Creek, Oklahoma
  2. 1.5 1 km SSE of Mill Creek, Oklahoma
  3. 1.4 6 km N of Mill Creek, Oklahoma
  4. 1.4 3 km S of Mill Creek, Oklahoma
  5. 1.2 3 km SW of Mill Creek, Oklahoma
  6. 1.6 10 km SSE of Ada, Oklahoma
  7. 1.2 4 km SE of Mill Creek, Oklahoma
  8. 1.3 3 km SW of Mill Creek, Oklahoma
  9. 1.1 3 km WSW of Mill Creek, Oklahoma
  10. 1.4 15 km SSW of Stonewall, Oklahoma
  11. 1.3 1 km W of Mill Creek, Oklahoma
  12. 1.3 6 km N of Mill Creek, Oklahoma
  13. 1.3 3 km SE of Mill Creek, Oklahoma
  14. 1.1 2 km S of Mill Creek, Oklahoma
  15. 1.3 3 km SSW of Mill Creek, 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.