QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

9 km SE of El Reno, Oklahoma

· 6.0 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 12 kmOklahoma County 44 kmGrady County 50 kmKingfisher County 53 kmCaddo County 57 kmCleveland County 59 kmLogan County 63 kmMcClain County 64 kmBlaine County 67 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
Magnitude
M 1.7 (ml)
Depth
6.0 km below the surface
Felt
no reports yet
Nearest
Canadian County, 12 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1606 days ago

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

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 930,000× the energy of this one
  3. Around the size people start to feel M 3.0 83× the energy of this one
  4. This earthquake M 1.7 about 11 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.

Where

Epicentre 35.4743, -97.8830. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 12 km (7 mi) SE of here earthquakes near Canadian County
Oklahoma County, OK 44 km (27 mi) WSW of here earthquakes near Oklahoma County
Grady County, OK 50 km (31 mi) N of here earthquakes near Grady County
Kingfisher County, OK 53 km (33 mi) S of here earthquakes near Kingfisher County
Caddo County, OK 57 km (35 mi) NE of here earthquakes near Caddo County
Cleveland County, OK 59 km (37 mi) WNW of here earthquakes near Cleveland 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 5 km SW of Minco, Oklahoma
  2. 1.6 6 km WSW of Minco, Oklahoma
  3. 2.1 4 km ENE of Union City, Oklahoma
  4. 1.7 7 km ENE of Okarche, Oklahoma
  5. 1.7 4 km ENE of Union City, Oklahoma
  6. 1.9 4 km ENE of Union City, Oklahoma
  7. 1.5 4 km ENE of Union City, Oklahoma
  8. 1.6 6 km W of Arcadia, Oklahoma
  9. 1.7 5 km ENE of Union City, Oklahoma
  10. 1.5 5 km ENE of Union City, Oklahoma
  11. 2.4 5 km ENE of Union City, Oklahoma
  12. 1.7 4 km ENE of Union City, Oklahoma
  13. 1.5 3 km E of Union City, Oklahoma
  14. 1.6 6 km E of Union City, Oklahoma
  15. 1.7 6 km ENE of Edmond, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.2 on 2016-01-01 — it released about 5,200 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.