Earthquake · reviewed by a seismologist
M 1.6ml
Earthquake near Shattuck, OK
No earthquake was likely felt in Shattuck in the 24 hours to 6:32 pm CST (00:32 UTC). The last one was M 3.4, 181 km (113 mi) ESE, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Shattuck
This page: a magnitude 1.6 earthquake was recorded 4 km (3 mi) northwest of Shattuck, OK, at 5:19 am CDT on 26 May 2021 (10:19 UTC), 7.0 km deep.
USGS: 4 km NW of Shattuck, Oklahoma
- When
- 5:19 am CDT on 26 May 2021 ()
- Where
- 4 km (3 mi) northwest of Shattuck, OK · earthquakes near Shattuck
- Oklahoma today
- every earthquake in Oklahoma in the last 24 hours
- Magnitude
- M 1.6 (ml)
- Depth
- 7.0 km below the surface
- Felt
- no reports yet
- Nearest
- Ellis County, 17 km ESE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1994 days ago
Earthquake alerts for Shattuck, OK
Get a notification in this browser when USGS records an earthquake near Shattuck, 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 3 km (2 mi) from the epicentre. In Shattuck, 4 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.6 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 4.0 on 2021-05-25 — about 4,700 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 36.3015, -99.9183. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Ellis County, OK | 17 km (11 mi) | ESE | earthquakes near Ellis County |
| Lipscomb County, TX | 32 km (20 mi) | W | earthquakes near Lipscomb County |
| Woodward County, OK | 59 km (37 mi) | ENE | earthquakes near Woodward County |
| Harper County, OK | 60 km (37 mi) | NNE | earthquakes near Harper County |
| Hemphill County, TX | 63 km (39 mi) | SSW | earthquakes near Hemphill County |
| Roger Mills County, OK | 68 km (42 mi) | SSE | earthquakes near Roger Mills County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
8 earthquakes have been recorded within 50 km since this one.
- 2.0 11 km NE of May, Oklahoma
- 1.6 10 km NE of May, Oklahoma
- 2.0 18 km SW of May, Oklahoma
- 2.9 6 km NE of Follett, Texas
- 1.6 5 km NW of Fort Supply, Oklahoma
- 2.1 12 km SSW of Higgins, Texas
- 1.6 5 km NNE of Fort Supply, Oklahoma
- 1.6 10 km NNE of May, 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.