QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

2 km NNW of Hunter, Oklahoma

· 7.0 km deep · released about 6.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 25 kmGrant County 25 kmNoble County 45 kmKay County 54 kmAlfalfa County 61 kmKingfisher County 74 kmSumner County 75 kmHarper County 76 kmLogan County 77 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
7.0 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Garfield County, 25 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1718 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 6.6 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.

  1. Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 36.5805, -97.6712. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, OK 25 km (15 mi) NNE of here earthquakes near Garfield County
Grant County, OK 25 km (16 mi) SSE of here earthquakes near Grant County
Noble County, OK 45 km (28 mi) WNW of here earthquakes near Noble County
Kay County, OK 54 km (33 mi) WSW of here earthquakes near Kay County
Alfalfa County, OK 61 km (38 mi) ESE of here earthquakes near Alfalfa County
Kingfisher County, OK 74 km (46 mi) NNE of here earthquakes near Kingfisher County

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

Aftershocks so far

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

  1. 2.0 10 km W of Medford, Oklahoma
  2. 1.7 10 km W of Lamont, Oklahoma
  3. 1.8 8 km NNE of Lucien, Oklahoma
  4. 1.8 2 km NW of Renfrow, Oklahoma
  5. 1.5 6 km NW of Medford, Oklahoma
  6. 1.8 10 km ESE of Jefferson, Oklahoma
  7. 1.6 7 km NW of Medford, Oklahoma
  8. 1.6 1 km WNW of Renfrow, Oklahoma
  9. 2.8 4 km W of Lucien, Oklahoma
  10. 1.9 7 km NW of Medford, Oklahoma
  11. 1.8 1 km SSW of Wakita, Oklahoma
  12. 1.5 4 km SSW of Goltry, Oklahoma
  13. 1.8 6 km NW of Medford, Oklahoma
  14. 1.6 6 km NW of Medford, Oklahoma
  15. 1.7 10 km W of Lamont, 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 4.6 on 2018-04-09 — it released about 36,000 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.