QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Okarche, OK

No earthquake was likely felt in Okarche in the 24 hours to 5:38 pm CST (23:38 UTC). The last one was M 1.9, 14 km (9 mi) SSW, at 8:54 pm CST on 7 November 2026, estimated intensity II (weak) in town. Every earthquake near Okarche

This page: a magnitude 2.4 earthquake was recorded 4 km (3 mi) west of Okarche, OK, at 2:07 am CDT on 11 July 2017 (07:07 UTC), 7.1 km deep. 1 person has reported feeling it to USGS.

USGS: 4 km W of Okarche, Oklahoma

54 km (34 mi) WNW of Oklahoma City, OK

2:07 am CDT, Jul 11, 2017 · · 7.1 km deep · released about 120 lb of TNT

Every earthquake near Okarche Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 21 kmKingfisher County 26 kmBlaine County 40 kmLogan County 56 kmOklahoma County 59 kmCaddo County 70 kmGarfield County 75 kmGrady County 79 kmMajor 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
2:07 am CDT on 11 July 2017 ()
Where
4 km (3 mi) west of Okarche, OK · earthquakes near Okarche
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.4 (ml)
Depth
7.1 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Canadian County, 21 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3323 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 41 km (25 mi) from the epicentre. In Okarche, 4 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: Okarche 4 km, intensity III · Kingfisher 17 km, intensity II · El Reno 22 km, intensity II · Yukon 34 km, intensity II · Watonga 38 km, intensity II · Union City 38 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 2016-03-29 — about 500 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 35.7265, -98.0237. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Canadian County, OK 21 km (13 mi) S earthquakes near Canadian County
Kingfisher County, OK 26 km (16 mi) NNE earthquakes near Kingfisher County
Blaine County, OK 40 km (25 mi) WNW earthquakes near Blaine County
Logan County, OK 56 km (35 mi) ENE earthquakes near Logan County
Oklahoma County, OK 59 km (36 mi) ESE earthquakes near Oklahoma County
Caddo County, OK 70 km (44 mi) SSW earthquakes near Caddo County

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

Aftershocks so far

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

  1. 1.9 6 km SSW of Yukon, Oklahoma
  2. 2.1 6 km S of Yukon, Oklahoma
  3. 2.3 6 km SSW of Yukon, Oklahoma
  4. 2.5 Oklahoma
  5. 2.6 16 km W of Union City, Oklahoma
  6. 2.6 6 km SSW of Yukon, Oklahoma
  7. 2.7 15 km W of Union City, Oklahoma
  8. 2.7 15 km W of Union City, Oklahoma
  9. 2.6 15 km W of Union City, Oklahoma
  10. 2.6 10 km ESE of Hennessey, Oklahoma
  11. 2.1 6 km SSW of Yukon, Oklahoma
  12. 2.6 10 km ESE of Hennessey, Oklahoma
  13. 2.4 1 km NE of Dover, Oklahoma
  14. 2.3 5 km N of Dover, Oklahoma
  15. 2.7 5 km S of Dover, OK

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.