Earthquake · reviewed by a seismologist
M 3.0mb_lg
Earthquake near Norman, OK
Yes. A magnitude 3.0 earthquake was recorded 42 km (26 mi) SW of Norman, OK, at 12:38 am CDT on 12 October 2026 (05:38 UTC), 10 km deep. 4 people have reported feeling it to USGS.
USGS: 7 km N of Alex, Oklahoma
60 km (37 mi) SSW of Oklahoma City, OK · 48 km (30 mi) SW of Moore, OK
- When
- 12:38 am CDT on 12 October 2026 ()
- Where
- 42 km (26 mi) SW of Norman, OK · earthquakes near Norman
- Magnitude
- M 3.0 (mb_lg)
- Depth
- 10 km below the surface
- Felt
- 4 reports · strongest reported intensity IV
- Nearest
- Grady County, 10 km WNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1 hour ago
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 73 km (45 mi) from the epicentre. In Norman, 42 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.
Earthquakes near other towns within 30 km: Ninnekah, Chickasha, Blanchard, Lindsay, Rush Springs.
How big was it?
This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 350,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
- Magna, Utah 2020 M 5.7 11,000× the energy of this one
- This earthquake M 3.0 about 950 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 34.9780, -97.7877. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Grady County, OK | 10 km (6 mi) | WNW | earthquakes near Grady County |
| McClain County, OK | 31 km (19 mi) | E | earthquakes near McClain County |
| Cleveland County, OK | 49 km (31 mi) | ENE | earthquakes near Cleveland County |
| Garvin County, OK | 53 km (33 mi) | SE | earthquakes near Garvin County |
| Stephens County, OK | 56 km (35 mi) | S | earthquakes near Stephens County |
| Caddo County, OK | 58 km (36 mi) | WNW | earthquakes near Caddo County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
No further earthquakes have been recorded within 50 km since this one.
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.
Revisions
USGS refines a solution as more stations report. Every change we have seen is listed here.
| What changed | From | To | When |
|---|---|---|---|
| reported intensity | 3.2 | 3.8 | |
| felt reports | 3 | 4 | |
| reported intensity | not reported | 3.2 | |
| felt reports | not reported | 3 |
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.