QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

9 km NE of Union City, Oklahoma

· 17 km deep · released about 9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 14 kmOklahoma County 43 kmGrady County 48 kmKingfisher County 56 kmCaddo County 56 kmCleveland County 56 kmMcClain County 61 kmLogan County 64 kmBlaine County 69 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 1.6 (ml)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Canadian County, 14 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2589 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 9 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.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 9 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 35.4500, -97.8693. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 14 km (9 mi) SE of here earthquakes near Canadian County
Oklahoma County, OK 43 km (27 mi) WSW of here earthquakes near Oklahoma County
Grady County, OK 48 km (30 mi) N of here earthquakes near Grady County
Kingfisher County, OK 56 km (35 mi) S of here earthquakes near Kingfisher County
Caddo County, OK 56 km (35 mi) NE of here earthquakes near Caddo County
Cleveland County, OK 56 km (35 mi) WNW of here earthquakes near Cleveland County

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

Aftershocks so far

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

  1. 2.0 8 km NE of El Reno, Oklahoma
  2. 1.5 10 km ENE of El Reno, Oklahoma
  3. 1.7 1 km SE of Minco, Oklahoma
  4. 2.0 1 km SSW of Minco, Oklahoma
  5. 2.3 3 km S of Minco, Oklahoma
  6. 2.1 1 km SSE of Minco, Oklahoma
  7. 1.8 6 km W of Arcadia, Oklahoma
  8. 2.4 2 km S of Minco, Oklahoma
  9. 1.8 7 km WNW of Jones, Oklahoma
  10. 1.6 14 km WSW of Kingfisher, Oklahoma
  11. 2.4 9 km W of Dibble, Oklahoma
  12. 2.0 15 km WSW of Kingfisher, Oklahoma
  13. 1.9 14 km WSW of Kingfisher, Oklahoma
  14. 1.9 15 km WSW of Kingfisher, Oklahoma
  15. 2.2 3 km SSE of Minco, 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 4.2 on 2016-01-01 — it released about 6,700 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.