QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Lindsay, OK

No earthquake was likely felt in Lindsay in the 24 hours to 8:49 pm CST (02:49 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 1.7 earthquake was recorded 9 km (6 mi) south-southeast of Lindsay, OK, at 2:30 am CST on 22 November 2020 (08:30 UTC), 7.3 km deep.

USGS: 7 km SE of Erin Springs, Oklahoma

79 km (49 mi) S of Oklahoma City, OK · 57 km (35 mi) SSW of Norman, OK

2:30 am CST, Nov 22, 2020 · · 7.3 km deep · released about 11 lb of TNT

10 km30 km60 km120 km N Garvin County 23 kmMcClain County 30 kmStephens County 41 kmGrady County 42 kmMurray County 54 kmCleveland County 54 kmCarter County 62 kmPottawatomie County 75 kmJefferson County 77 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
2:30 am CST on 22 November 2020 ()
Where
9 km (6 mi) south-southeast of Lindsay, OK · earthquakes near Lindsay
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.7 (ml)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Garvin County, 23 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2179 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 11 km (7 mi) from the epicentre. In Lindsay, 9 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 9 km, intensity II. Estimated for each town centre; each link is that town's own record.

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 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 970,000× the energy of this one
  3. Around the size people start to feel M 3.0 86× 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.

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 34.7595, -97.5617. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Garvin County, OK 23 km (15 mi) ESE earthquakes near Garvin County
McClain County, OK 30 km (19 mi) NNE earthquakes near McClain County
Stephens County, OK 41 km (25 mi) SW earthquakes near Stephens County
Grady County, OK 42 km (26 mi) NW earthquakes near Grady County
Murray County, OK 54 km (34 mi) SE earthquakes near Murray County
Cleveland County, OK 54 km (34 mi) NNE earthquakes near Cleveland 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. 1.9 11 km SE of Ratliff City, Oklahoma
  2. 1.7 11 km SE of Ratliff City, Oklahoma
  3. 1.6 10 km SE of Ratliff City, Oklahoma
  4. 1.7 15 km NE of Healdton, Oklahoma
  5. 1.6 11 km SE of Ratliff City, Oklahoma
  6. 2.7 12 km SE of Ratliff City, Oklahoma
  7. 1.5 13 km SE of Ratliff City, Oklahoma
  8. 1.7 14 km SE of Ratliff City, Oklahoma
  9. 1.6 13 km SE of Ratliff City, Oklahoma
  10. 1.6 10 km SE of Ratliff City, Oklahoma
  11. 1.7 11 km SE of Ratliff City, Oklahoma
  12. 2.2 10 km SE of Ratliff City, Oklahoma
  13. 1.8 9 km SE of Ratliff City, Oklahoma
  14. 1.7 10 km SE of Ratliff City, Oklahoma
  15. 1.7 12 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.