QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Blanchard, OK

No earthquake was likely felt in Blanchard in the 24 hours to 3:40 am CST (09:40 UTC). The last one was M 3.4, 63 km (39 mi) NNW, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Blanchard

This page: a magnitude 1.6 earthquake was recorded 3 km (2 mi) south of Blanchard, OK, at 3:39 am CDT on 22 May 2024 (08:39 UTC), 6.3 km deep.

USGS: 3 km SSW of Blanchard, Oklahoma

42 km (26 mi) SSW of Oklahoma City, OK · 30 km (19 mi) SW of Moore, OK

3:39 am CDT, May 22, 2024 · · 6.3 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N McClain County 22 kmGrady County 22 kmCleveland County 33 kmGarvin County 55 kmOklahoma County 55 kmCanadian County 56 kmCaddo County 65 kmPottawatomie County 65 kmStephens 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
3:39 am CDT on 22 May 2024 ()
Where
3 km (2 mi) south of Blanchard, OK · earthquakes near Blanchard
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.6 (ml)
Depth
6.3 km below the surface
Felt
no reports yet
Nearest
McClain County, 22 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 904 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 4 km (2 mi) from the epicentre. In Blanchard, 3 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: Blanchard 3 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 7.6 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 2,000,000× 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 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 35.1073, -97.6655. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
McClain County, OK 22 km (14 mi) ESE earthquakes near McClain County
Grady County, OK 22 km (14 mi) WSW earthquakes near Grady County
Cleveland County, OK 33 km (21 mi) ENE earthquakes near Cleveland County
Garvin County, OK 55 km (34 mi) SE earthquakes near Garvin County
Oklahoma County, OK 55 km (34 mi) NNE earthquakes near Oklahoma County
Canadian County, OK 56 km (35 mi) NNW earthquakes near Canadian County

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

Aftershocks so far

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

  1. 2.6 10 km N of Alex, Oklahoma
  2. 1.9 3 km S of Union City, Oklahoma
  3. 2.1 10 km N of Alex, Oklahoma
  4. 2.5 11 km N of Alex, Oklahoma
  5. 2.6 11 km W of Dibble, Oklahoma
  6. 1.7 10 km N of Alex, Oklahoma
  7. 2.2 11 km N of Alex, Oklahoma
  8. 1.7 10 km N of Alex, Oklahoma
  9. 1.5 1 km ENE of Goldsby, Oklahoma
  10. 1.9 9 km WSW of Minco, Oklahoma
  11. 2.1 4 km SSW of Union City, Oklahoma
  12. 1.9 4 km SSW of Union City, Oklahoma
  13. 1.6 3 km SSW of Union City, Oklahoma
  14. 1.7 6 km NW of Minco, Oklahoma
  15. 1.5 5 km NW 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.