QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near El Reno, OK

No earthquake was likely felt in El Reno in the 24 hours to 5:51 pm CST (23:51 UTC). The last one was M 1.9, 12 km (7 mi) NW, at 8:54 pm CST on 7 November 2026, estimated intensity II (weak) in town. Every earthquake near El Reno

This page: a magnitude 1.9 earthquake was recorded 9 km (5 mi) southwest of El Reno, OK, at 10:20 am CDT on 12 August 2023 (15:20 UTC), 4.7 km deep. 1 person has reported feeling it to USGS.

USGS: 8 km SW of El Reno, Oklahoma

46 km (28 mi) W of Oklahoma City, OK

10:20 am CDT, Aug 12, 2023 · · 4.7 km deep · released about 19 lb of TNT

10 km30 km60 km120 km N Canadian County 9 kmCaddo County 47 kmGrady County 52 kmKingfisher County 53 kmOklahoma County 56 kmBlaine County 58 kmCleveland County 70 kmLogan County 71 kmMcClain County 72 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
10:20 am CDT on 12 August 2023 ()
Where
9 km (5 mi) southwest of El Reno, OK · earthquakes near El Reno
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.9 (ml)
Depth
4.7 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Canadian County, 9 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1185 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 19 km (12 mi) from the epicentre. In El Reno, 9 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: El Reno 9 km, intensity II · Union City 11 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 810,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 580,000× the energy of this one
  3. Around the size people start to feel M 3.0 51× the energy of this one
  4. This earthquake M 1.9 about 19 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 35.4735, -98.0187. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Canadian County, OK 9 km (5 mi) NNE earthquakes near Canadian County
Caddo County, OK 47 km (29 mi) SW earthquakes near Caddo County
Grady County, OK 52 km (32 mi) SSE earthquakes near Grady County
Kingfisher County, OK 53 km (33 mi) N earthquakes near Kingfisher County
Oklahoma County, OK 56 km (35 mi) E earthquakes near Oklahoma County
Blaine County, OK 58 km (36 mi) NW earthquakes near Blaine County

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

Aftershocks so far

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

  1. 1.5 11 km W of Kingfisher, Oklahoma
  2. 2.4 11 km W of Kingfisher, Oklahoma
  3. 1.8 7 km WSW of Minco, Oklahoma
  4. 1.9 9 km WSW of Minco, Oklahoma
  5. 1.7 9 km NW of Pocasset, Oklahoma
  6. 1.6 8 km SW of Minco, Oklahoma
  7. 1.9 Oklahoma
  8. 2.0 Oklahoma
  9. 2.1 9 km SW of Minco, Oklahoma
  10. 1.7 8 km NW of Pocasset, Oklahoma
  11. 1.6 8 km SW of Minco, Oklahoma
  12. 1.8 7 km SW of Minco, Oklahoma
  13. 1.8 7 km WSW of Minco, Oklahoma
  14. 2.1 9 km SW of Minco, Oklahoma
  15. 1.9 9 km SW of Minco, 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.