QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near El Reno, OK

No earthquake was likely felt in El Reno in the 24 hours to 7:44 pm CST (01:44 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 2.3 earthquake was recorded 9 km (6 mi) southeast of El Reno, OK, at 9:21 pm CDT on 3 May 2017 (02:21 UTC), 7.1 km deep. 2 people have reported feeling it to USGS.

USGS: 8 km SE of El Reno, Oklahoma

34 km (21 mi) W of Oklahoma City, OK

9:21 pm CDT, May 3, 2017 · · 7.1 km deep · released about 85 lb of TNT

Every earthquake near El Reno Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 11 kmOklahoma County 44 kmGrady County 50 kmKingfisher County 53 kmCaddo County 56 kmCleveland County 59 kmLogan County 63 kmMcClain County 65 kmBlaine 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
9:21 pm CDT on 3 May 2017 ()
Where
9 km (6 mi) southeast of El Reno, OK · earthquakes near El Reno
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.3 (ml)
Depth
7.1 km below the surface
Felt
2 reports · strongest reported intensity IV
Nearest
Canadian County, 11 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3393 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 36 km (22 mi) from the epicentre. In El Reno, 9 km away, the estimate is intensity III (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 III · Union City 10 km, intensity II · Yukon 12 km, intensity II · Mustang 18 km, intensity II · Minco 19 km, intensity II · Tuttle 21 km, intensity II · Bethany 24 km, intensity II · Okarche 29 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 85 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 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× 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 85 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 4.2 on 2016-01-01 — about 710 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 35.4737, -97.8875. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Canadian County, OK 11 km (7 mi) NW earthquakes near Canadian County
Oklahoma County, OK 44 km (27 mi) ENE earthquakes near Oklahoma County
Grady County, OK 50 km (31 mi) S earthquakes near Grady County
Kingfisher County, OK 53 km (33 mi) N earthquakes near Kingfisher County
Caddo County, OK 56 km (35 mi) SW earthquakes near Caddo County
Cleveland County, OK 59 km (37 mi) ESE earthquakes near Cleveland 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. 2.3 0 km N of Bridge Creek, Oklahoma
  2. 2.7 0 km N of Bridge Creek, Oklahoma
  3. 2.2 5 km NE of Edmond, Oklahoma
  4. 2.0 0 km WSW of Bridge Creek, Oklahoma
  5. 2.8 13 km W of Union City, Oklahoma
  6. 2.6 3 km E of Bridge Creek, Oklahoma
  7. 2.2 2 km SW of Yukon, Oklahoma
  8. 2.7 13 km W of Union City, Oklahoma
  9. 2.7 13 km W of Union City, Oklahoma
  10. 2.4 2 km E of Bridge Creek, Oklahoma
  11. 2.5 12 km W of Union City, Oklahoma
  12. 2.2 3 km ESE of Bridge Creek, Oklahoma
  13. 2.4 3 km ESE of Bridge Creek, Oklahoma
  14. 3.3 7 km NNE of Lake Aluma, Oklahoma
  15. 2.8 6 km W of Arcadia, 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.