QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near El Reno, OK

No earthquake was likely felt in El Reno in the 24 hours to 2:12 pm CST (20:12 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 1.6 earthquake was recorded 11 km (7 mi) west of El Reno, OK, at 9:23 pm CST on 27 February 2023 (03:23 UTC), 6.2 km deep.

USGS: 9 km SSE of Calumet, Oklahoma

51 km (32 mi) W of Oklahoma City, OK

9:23 pm CST, Feb 27, 2023 · · 6.2 km deep · released about 7.8 lb of TNT

10 km30 km60 km120 km N Canadian County 9 kmCaddo County 48 kmKingfisher County 49 kmBlaine County 51 kmGrady County 58 kmOklahoma County 60 kmLogan County 71 kmCleveland County 76 kmMcClain County 80 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
9:23 pm CST on 27 February 2023 ()
Where
11 km (7 mi) west of El Reno, OK · earthquakes near El Reno
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.6 (ml)
Depth
6.2 km below the surface
Felt
no reports yet
Nearest
Canadian County, 9 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1352 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 5 km (3 mi) from the epicentre. In El Reno, 11 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: Union City, Okarche, Geary, Minco, Hinton, Yukon.

How big was it?

This earthquake released about 7.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 35.5210, -98.0733. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Canadian County, OK 9 km (5 mi) ENE earthquakes near Canadian County
Caddo County, OK 48 km (30 mi) SW earthquakes near Caddo County
Kingfisher County, OK 49 km (31 mi) NNE earthquakes near Kingfisher County
Blaine County, OK 51 km (32 mi) NW earthquakes near Blaine County
Grady County, OK 58 km (36 mi) SSE earthquakes near Grady County
Oklahoma County, OK 60 km (37 mi) E earthquakes near Oklahoma County

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

Aftershocks so far

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

  1. 1.6 3 km NE of Amber, Oklahoma
  2. 1.7 3 km NNE of Amber, Oklahoma
  3. 1.9 2 km ENE of Amber, Oklahoma
  4. 1.6 3 km NNE of Amber, Oklahoma
  5. 1.6 2 km NNE of Amber, Oklahoma
  6. 1.9 2 km NNE of Amber, Oklahoma
  7. 1.6 14 km WNW of Greenfield, Oklahoma
  8. 2.4 1 km NE of Amber, Oklahoma
  9. 1.7 2 km NE of Amber, Oklahoma
  10. 1.5 2 km NE of Amber, Oklahoma
  11. 1.5 3 km NNE of Amber, Oklahoma
  12. 1.5 10 km NNW of El Reno, Oklahoma
  13. 1.6 9 km NW of Pocasset, Oklahoma
  14. 2.1 3 km WNW of Okarche, Oklahoma
  15. 2.3 10 km NW of Pocasset, 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.