QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Lindsay, OK

No earthquake was likely felt in Lindsay in the 24 hours to 4:51 pm CST (22:51 UTC). The last one was M 3.4, 95 km (59 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 Lindsay

This page: a magnitude 1.9 earthquake was recorded 10 km (6 mi) southwest of Lindsay, OK, at 7:07 pm CDT on 2 May 2021 (00:07 UTC), 5.2 km deep.

USGS: 8 km SW of Erin Springs, Oklahoma

79 km (49 mi) S of Oklahoma City, OK

7:07 pm CDT, May 2, 2021 · · 5.2 km deep · released about 22 lb of TNT

10 km30 km60 km120 km N Grady County 34 kmGarvin County 34 kmMcClain County 35 kmStephens County 36 kmCleveland County 58 kmMurray County 64 kmCarter County 68 kmComanche County 74 kmJefferson County 75 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
7:07 pm CDT on 2 May 2021 ()
Where
10 km (6 mi) southwest of Lindsay, OK · earthquakes near Lindsay
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.9 (ml)
Depth
5.2 km below the surface
Felt
no reports yet
Nearest
Grady County, 34 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2018 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 21 km (13 mi) from the epicentre. In Lindsay, 10 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: Lindsay 10 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 34.7692, -97.6788. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Grady County, OK 34 km (21 mi) NW earthquakes near Grady County
Garvin County, OK 34 km (21 mi) E earthquakes near Garvin County
McClain County, OK 35 km (21 mi) NE earthquakes near McClain County
Stephens County, OK 36 km (22 mi) SSW earthquakes near Stephens County
Cleveland County, OK 58 km (36 mi) NNE earthquakes near Cleveland County
Murray County, OK 64 km (40 mi) ESE earthquakes near Murray 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. 1.7 3 km E of Bradley, Oklahoma
  2. 2.2 11 km E of Comanche, Oklahoma
  3. 1.7 7 km SSE of Erin Springs, Oklahoma
  4. 1.8 7 km SSE of Erin Springs, Oklahoma
  5. 1.7 10 km SE of Katie, Oklahoma
  6. 1.9 3 km S of Blanchard, Oklahoma
  7. 1.8 7 km SSE of Erin Springs, Oklahoma
  8. 2.2 7 km SSE of Erin Springs, Oklahoma
  9. 1.7 7 km NE of Alex, Oklahoma
  10. 2.7 6 km NNE of Alex, Oklahoma
  11. 1.6 6 km S of Ratliff City, Oklahoma
  12. 1.6 8 km SW of Dibble, Oklahoma
  13. 1.6 10 km ESE of Katie, Oklahoma
  14. 1.6 11 km W of Davis, Oklahoma
  15. 1.8 8 km SE of Ratliff City, 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.