QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Oklahoma

Yes. A magnitude 1.6 earthquake was recorded in Oklahoma, 61 km (38 mi) S of Oklahoma City, OK, at 10:25 am CDT on 1 July 2022 (15:25 UTC), 9.4 km deep.

61 km (38 mi) S of Oklahoma City, OK · 43 km (26 mi) SW of Norman, OK

· 9.4 km deep · released about 6.8 lb of TNT

10 km30 km60 km120 km N McClain County 18 kmGrady County 28 kmGarvin County 36 kmCleveland County 41 kmStephens County 54 kmPottawatomie County 67 kmMurray County 69 kmOklahoma County 72 kmCaddo County 76 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
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.6 (ml)
Depth
9.4 km below the surface
Felt
no reports yet
Nearest
McClain County, 18 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1594 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. 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: Lindsay, Maysville, Blanchard, Purcell, Lexington, Goldsby.

How big was it?

This earthquake released about 6.8 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 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 34.9227, -97.6050. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
McClain County, OK 18 km (11 mi) NE earthquakes near McClain County
Grady County, OK 28 km (17 mi) WNW earthquakes near Grady County
Garvin County, OK 36 km (22 mi) SE earthquakes near Garvin County
Cleveland County, OK 41 km (25 mi) NE earthquakes near Cleveland County
Stephens County, OK 54 km (34 mi) SSW earthquakes near Stephens County
Pottawatomie County, OK 67 km (42 mi) ENE earthquakes near Pottawatomie County

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

Aftershocks so far

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

  1. 1.9 1 km NW of Bridge Creek, Oklahoma
  2. 1.8 1 km SE of Erin Springs, Oklahoma
  3. 1.7 1 km NNW of Bridge Creek, Oklahoma
  4. 2.4 1 km NNW of Bridge Creek, Oklahoma
  5. 1.5 1 km N of Bridge Creek, Oklahoma
  6. 2.7 Oklahoma
  7. 2.0 1 km N of Bridge Creek, Oklahoma
  8. 1.5 2 km NNE of Bridge Creek, Oklahoma
  9. 1.6 2 km NE of Bridge Creek, Oklahoma
  10. 1.6 10 km SSW of Bradley, Oklahoma
  11. 1.7 3 km WSW of Washington, Oklahoma
  12. 1.7 5 km SW of Washington, Oklahoma
  13. 2.0 3 km WSW of Washington, Oklahoma
  14. 2.0 4 km WSW of Washington, Oklahoma
  15. 1.9 4 km WSW of Washington, 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.