Earthquake · reviewed by a seismologist
M 3.3ml
Earthquake near Langston, OK
No earthquake was likely felt in Langston in the 24 hours to 6:28 am CST (12:28 UTC). The last one was M 3.4, 80 km (50 mi) WSW, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Langston
This page: a magnitude 3.3 earthquake was recorded 3 km (2 mi) northeast of Langston, OK, at 10:46 pm CDT on 26 September 2018 (03:46 UTC), 6.7 km deep. 8 people have reported feeling it to USGS.
USGS: 0 km N of Coyle, Oklahoma
60 km (38 mi) NNE of Oklahoma City, OK · 24 km (15 mi) SW of Stillwater, OK
- When
- 10:46 pm CDT on 26 September 2018 ()
- Where
- 3 km (2 mi) northeast of Langston, OK · earthquakes near Langston
- Oklahoma today
- every earthquake in Oklahoma in the last 24 hours
- Magnitude
- M 3.3 (ml)
- Depth
- 6.7 km below the surface
- Felt
- 8 reports · strongest reported intensity V
- Nearest
- Logan County, 20 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2902 days ago
Earthquake alerts for Langston, 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 234 km (145 mi) from the epicentre. In Langston, 3 km away, the estimate is intensity IV (light). 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: Langston 3 km, intensity IV · Perkins 18 km, intensity III · Guthrie 19 km, intensity III · Stillwater 23 km, intensity III · Crescent 33 km, intensity III · Luther 33 km, intensity III · Perry 37 km, intensity III · Edmond 41 km, intensity III. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 130,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 5,600× the energy of this one
- Magna, Utah 2020 M 5.7 4,000× the energy of this one
- This earthquake M 3.3 about 1.3 tons of TNT
- Around the size people start to feel M 3.0 this one released 2.8× more
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 5.0 on 2016-11-07 — 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 35.9603, -97.2337. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Logan County, OK | 20 km (13 mi) | WSW | earthquakes near Logan County |
| Payne County, OK | 27 km (17 mi) | ENE | earthquakes near Payne County |
| Lincoln County, OK | 43 km (27 mi) | SE | earthquakes near Lincoln County |
| Noble County, OK | 47 km (29 mi) | N | earthquakes near Noble County |
| Oklahoma County, OK | 48 km (30 mi) | SSW | earthquakes near Oklahoma County |
| Pawnee County, OK | 62 km (39 mi) | NE | earthquakes near Pawnee 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.
- 2.1 5 km WSW of Quay, Oklahoma
- 2.4 6 km SSE of Guthrie, Oklahoma
- 2.4 8 km NNE of Marshall, 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
- 2.0 5 km SE of Luther, Oklahoma
- 2.7 7 km NNE of Marshall, Oklahoma
- 3.9 8 km NE of Marshall, Oklahoma
- 3.6 4 km ENE of Douglas, Oklahoma
- 2.4 6 km SE of Langston, Oklahoma
- 2.1 8 km NE of Marshall, Oklahoma
- 2.2 8 km NE of Marshall, Oklahoma
- 1.9 8 km NW of Coyle, Oklahoma
- 2.1 5 km W of Arcadia, 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.