Earthquake · reviewed by a seismologist
M 2.9ml
Earthquake near Enid, OK
No earthquake was likely felt in Enid in the 24 hours to 2:55 am CST (08:55 UTC). The last one was M 3.4, 89 km (55 mi) S, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Enid
This page: a magnitude 2.9 earthquake was recorded 22 km (14 mi) south of Enid, OK, at 11:56 pm CDT on 7 October 2018 (04:56 UTC), 5.0 km deep. 1 person has reported feeling it to USGS.
USGS: 0 km WNW of Bison, Oklahoma
88 km (55 mi) NNW of Oklahoma City, OK · 23 km (15 mi) S of Enid, OK
- When
- 11:56 pm CDT on 7 October 2018 ()
- Where
- 22 km (14 mi) south of Enid, OK · earthquakes near Enid
- Oklahoma today
- every earthquake in Oklahoma in the last 24 hours
- Magnitude
- M 2.9 (ml)
- Depth
- 5.0 km below the surface
- Felt
- 1 report · strongest reported intensity III
- Nearest
- Garfield County, 22 km NNE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2884 days ago
Earthquake alerts for Enid, OK
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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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 67 km (42 mi) from the epicentre. In Enid, 22 km away, the estimate is intensity III (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: Hennessey 10 km, intensity III · Enid 22 km, intensity III · Kingfisher 38 km, intensity II · Okeene 39 km, intensity II · Crescent 39 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
- Magna, Utah 2020 M 5.7 16,000× the energy of this one
- Around the size people start to feel M 3.0 1.4× the energy of this one
- This earthquake M 2.9 about 680 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 4.6 on 2018-04-09 — about 350 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 36.1981, -97.8989. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Garfield County, OK | 22 km (14 mi) | NNE | earthquakes near Garfield County |
| Kingfisher County, OK | 28 km (17 mi) | S | earthquakes near Kingfisher County |
| Logan County, OK | 51 km (32 mi) | SE | earthquakes near Logan County |
| Major County, OK | 59 km (37 mi) | WNW | earthquakes near Major County |
| Blaine County, OK | 60 km (37 mi) | SW | earthquakes near Blaine County |
| Noble County, OK | 63 km (39 mi) | ENE | earthquakes near Noble County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
57 earthquakes have been recorded within 50 km since this one.
- 2.6 5 km WSW of Lucien, Oklahoma
- 2.5 1 km N of Goltry, Oklahoma
- 2.3 9 km ESE of Bison, Oklahoma
- 2.5 5 km NNE of Okeene, Oklahoma
- 2.3 8 km SW of Goltry, Oklahoma
- 2.3 5 km N of Ames, Oklahoma
- 2.4 8 km NNE of Marshall, Oklahoma
- 3.3 4 km ESE of Meno, Oklahoma
- 2.2 5 km WNW of Lucien, Oklahoma
- 2.4 11 km SSE of Marshall, Oklahoma
- 2.2 11 km SSE of Marshall, Oklahoma
- 2.7 7 km NNE of Marshall, Oklahoma
- 3.9 8 km NE of Marshall, Oklahoma
- 2.3 1 km ENE of Douglas, Oklahoma
- 3.6 4 km ENE of Douglas, 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.