Earthquake · reviewed by a seismologist
M 1.7ml
Earthquake near Perry, OK
No earthquake was likely felt in Perry in the 24 hours to 3:43 pm CST (21:43 UTC). The last one was M 3.4, 102 km (63 mi) SW, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Perry
This page: a magnitude 1.7 earthquake was recorded 10 km (6 mi) north-northwest of Perry, OK, at 9:14 pm CST on 18 January 2021 (03:14 UTC), 7.5 km deep.
USGS: 9 km NNW of Perry, Oklahoma
36 km (22 mi) NW of Stillwater, OK · 101 km (63 mi) N of Oklahoma City, OK
- When
- 9:14 pm CST on 18 January 2021 ()
- Where
- 10 km (6 mi) north-northwest of Perry, OK · earthquakes near Perry
- Oklahoma today
- every earthquake in Oklahoma in the last 24 hours
- Magnitude
- M 1.7 (ml)
- Depth
- 7.5 km below the surface
- Felt
- no reports yet
- Nearest
- Noble County, 10 km ENE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2122 days ago
Earthquake alerts for Perry, OK
Get a notification in this browser when USGS records an earthquake near Perry, OK. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 8 km (5 mi) from the epicentre. In Perry, 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.
How big was it?
This earthquake released about 9.3 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.
- Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
- Around the size people start to feel M 3.0 100× the energy of this one
- This earthquake M 1.7 about 9.3 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 5.8 on 2016-09-03 — about 1,600,000 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 36.3653, -97.3442. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Noble County, OK | 10 km (6 mi) | ENE | earthquakes near Noble County |
| Garfield County, OK | 40 km (25 mi) | W | earthquakes near Garfield County |
| Payne County, OK | 46 km (29 mi) | SE | earthquakes near Payne County |
| Logan County, OK | 51 km (32 mi) | S | earthquakes near Logan County |
| Kay County, OK | 53 km (33 mi) | NNE | earthquakes near Kay County |
| Pawnee County, OK | 58 km (36 mi) | E | earthquakes near Pawnee 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.
- 2.3 5 km E of Enid, Oklahoma
- 2.4 10 km W of Lamont, Oklahoma
- 2.4 9 km W of Lamont, Oklahoma
- 1.7 9 km ESE of Jefferson, Oklahoma
- 1.7 10 km ESE of Jefferson, Oklahoma
- 1.7 8 km WSW of Langston, Oklahoma
- 2.0 10 km W of Lamont, Oklahoma
- 2.6 9 km ESE of Jefferson, Oklahoma
- 1.8 8 km NW of Perry, Oklahoma
- 1.7 9 km ESE of Mulhall, Oklahoma
- 1.9 5 km WNW of Lucien, Oklahoma
- 1.7 5 km WNW of Lucien, Oklahoma
- 1.6 6 km ENE of Hunter, Oklahoma
- 1.6 9 km NW of Perry, Oklahoma
- 1.6 4 km W of Lucien, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.