QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

9 km N of Bromide, Oklahoma

· 26 km deep · released about 8.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Coal County 20 kmJohnston County 26 kmPontotoc County 31 kmAtoka County 43 kmMurray County 54 kmMarshall County 59 kmBryan County 63 kmHughes County 65 kmSeminole County 74 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
26 km below the surface
Felt
no reports yet
Nearest
Coal County, 20 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1363 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 8.1 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 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 34.5038, -96.4813. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Coal County, OK 20 km (12 mi) WSW of here earthquakes near Coal County
Johnston County, OK 26 km (16 mi) NE of here earthquakes near Johnston County
Pontotoc County, OK 31 km (19 mi) SE of here earthquakes near Pontotoc County
Atoka County, OK 43 km (26 mi) WNW of here earthquakes near Atoka County
Murray County, OK 54 km (34 mi) E of here earthquakes near Murray County
Marshall County, OK 59 km (37 mi) NNE of here earthquakes near Marshall County

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

Aftershocks so far

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

  1. 1.7 3 km S of Mill Creek, Oklahoma
  2. 1.8 10 km SSE of Wapanucka, Oklahoma
  3. 1.5 9 km SSE of Ada, Oklahoma
  4. 1.5 3 km SE of Mill Creek, Oklahoma
  5. 1.6 4 km SW of Mill Creek, Oklahoma
  6. 1.5 6 km N of Mill Creek, Oklahoma
  7. 1.5 8 km S of Hickory, Oklahoma
  8. 1.6 1 km SE of Mill Creek, Oklahoma
  9. 1.8 3 km WSW of Mill Creek, Oklahoma
  10. 1.8 2 km SW of Mill Creek, Oklahoma
  11. 1.7 Oklahoma
  12. 1.6 0 km SSE of Mill Creek, Oklahoma
  13. 2.0 3 km SW of Mill Creek, Oklahoma
  14. 1.7 4 km SW of Mill Creek, Oklahoma
  15. 1.8 1 km SE of Mill Creek, 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.