QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Hall Park, OK

Yes. A magnitude 1.9 earthquake was recorded 5 km (3 mi) NW of Hall Park, OK, at 11:40 pm CDT on 6 October 2026 (04:40 UTC), 8.2 km deep.

This was on 6 October 2026. The latest near Hall Park: M 3.3 on 4 September 2026.

USGS: 4 km NW of Hall Park, Oklahoma

23 km (15 mi) SSE of Oklahoma City, OK · 8 km (5 mi) SSE of Moore, OK

11:40 pm CDT, Oct 6, 2026 · · 8.2 km deep · released about 19 lb of TNT

Every earthquake near Hall Park Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cleveland County 13 kmMcClain County 28 kmOklahoma County 32 kmPottawatomie County 45 kmGrady County 49 kmCanadian County 58 kmGarvin County 63 kmLincoln County 70 kmLogan County 72 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
11:40 pm CDT on 6 October 2026 ()
Where
5 km (3 mi) NW of Hall Park, OK · earthquakes near Hall Park
Magnitude
M 1.9 (ml)
Depth
8.2 km below the surface
Felt
no reports yet
Nearest
Cleveland County, 13 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2 days ago

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 17 km (11 mi) from the epicentre. In Hall Park, 5 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.

Likely felt in: Norman 5 km, intensity II · Moore 9 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 810,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 580,000× the energy of this one
  3. Around the size people start to feel M 3.0 51× the energy of this one
  4. This earthquake M 1.9 about 19 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 4.3 on 2024-01-13 — about 4,000 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 35.2650, -97.4428. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Cleveland County, OK 13 km (8 mi) ESE earthquakes near Cleveland County
McClain County, OK 28 km (17 mi) S earthquakes near McClain County
Oklahoma County, OK 32 km (20 mi) N earthquakes near Oklahoma County
Pottawatomie County, OK 45 km (28 mi) E earthquakes near Pottawatomie County
Grady County, OK 49 km (30 mi) SW earthquakes near Grady County
Canadian County, OK 58 km (36 mi) WNW earthquakes near Canadian County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

19 earthquakes have been recorded within 50 km since this one.

  1. 2.3 8 km ESE of Chickasha, Oklahoma
  2. 1.9 7 km N of Alex, Oklahoma
  3. 2.5 7 km N of Alex, Oklahoma
  4. 0.6 7 km NNW of Alex, Oklahoma
  5. 1.2 6 km N of Alex, Oklahoma
  6. 0.7 7 km N of Alex, Oklahoma
  7. 0.8 5 km N of Alex, Oklahoma
  8. 0.7 5 km N of Alex, Oklahoma
  9. 0.5 3 km NNW of Alex, Oklahoma
  10. 2.0 6 km N of Alex, Oklahoma
  11. 0.7 7 km SE of Chickasha, Oklahoma
  12. 0.8 7 km SE of Chickasha, Oklahoma
  13. 1.4 7 km ESE of Chickasha, Oklahoma
  14. 0.9 6 km N of Alex, Oklahoma
  15. 1.0 7 km N of Alex, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.