QuakeIndex

Earthquake · automatic estimate, may change

M 1.5ml

5 km WNW of Braman, Oklahoma

· 30 km deep · released about 5.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kay County 26 kmSumner County 34 kmGrant County 39 kmCowley County 59 kmNoble County 63 kmHarper County 66 kmGarfield County 72 kmSedgwick County 83 kmAlfalfa County 86 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
Magnitude
M 1.5 (ml)
Depth
30 km below the surface
Felt
no reports yet
Nearest
Kay County, 26 km ESE
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 2289 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 5.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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.

Where

Epicentre 36.9411, -97.3909. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kay County, OK 26 km (16 mi) WNW of here earthquakes near Kay County
Sumner County, KS 34 km (21 mi) SSE of here earthquakes near Sumner County
Grant County, OK 39 km (24 mi) ENE of here earthquakes near Grant County
Cowley County, KS 59 km (37 mi) WSW of here earthquakes near Cowley County
Noble County, OK 63 km (39 mi) NNW of here earthquakes near Noble County
Harper County, KS 66 km (41 mi) ESE of here earthquakes near Harper 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.

  1. 1.7 9 km NNW of Deer Creek, Oklahoma
  2. 1.7 0 km NE of Renfrow, Oklahoma
  3. 1.7 9 km WSW of Hunnewell, Kansas
  4. 1.5 10 km W of Lamont, Oklahoma
  5. 2.7 10 km W of Lamont, Oklahoma
  6. 1.6 11 km SW of Hunnewell, Kansas
  7. 1.7 11 km SW of Hunnewell, Kansas
  8. 2.1 7 km N of Nardin, Oklahoma
  9. 2.1 5 km NNW of Wakita, Oklahoma
  10. 1.7 10 km SW of Hunnewell, Kansas
  11. 1.8 7 km N of Nardin, Oklahoma
  12. 2.1 10 km ESE of Jefferson, Oklahoma
  13. 1.8 7 km NNE of Nardin, Oklahoma
  14. 1.7 6 km NW of Lamont, Oklahoma
  15. 2.1 7 km N of Nardin, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2019-05-17 — it released about 22,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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