QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

5 km NE of Porter, Oklahoma

· 7.0 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Wagoner County 8 kmMuskogee County 32 kmCherokee County 43 kmTulsa County 49 kmMayes County 50 kmOkmulgee County 53 kmRogers County 54 kmMcIntosh County 62 kmAdair 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 1.7 (ml)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Wagoner County, 8 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1535 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 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 35.8998, -95.4742. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Wagoner County, OK 8 km (5 mi) SSE of here earthquakes near Wagoner County
Muskogee County, OK 32 km (20 mi) NNW of here earthquakes near Muskogee County
Cherokee County, OK 43 km (27 mi) W of here earthquakes near Cherokee County
Tulsa County, OK 49 km (30 mi) ESE of here earthquakes near Tulsa County
Mayes County, OK 50 km (31 mi) SSW of here earthquakes near Mayes County
Okmulgee County, OK 53 km (33 mi) ENE of here earthquakes near Okmulgee 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. 1.5 2 km SSE of Zeb, Oklahoma
  2. 1.6 5 km SE of Owasso, Oklahoma
  3. 1.8 2 km SSE of Hulbert, Oklahoma
  4. 1.8 1 km ESE of Zeb, Oklahoma
  5. 1.6 3 km SW of Hulbert, Oklahoma
  6. 1.6 3 km SW of Hulbert, Oklahoma
  7. 1.5 2 km SW of Hulbert, Oklahoma
  8. 1.6 2 km WSW of Hulbert, Oklahoma
  9. 1.6 3 km SW of Hulbert, Oklahoma
  10. 1.8 3 km SW of Hulbert, Oklahoma
  11. 1.6 2 km SSE of Zeb, Oklahoma
  12. 1.7 2 km WSW of Hulbert, Oklahoma
  13. 1.7 2 km SW of Hulbert, Oklahoma
  14. 1.8 3 km SE of Zeb, Oklahoma
  15. 1.5 2 km SSW of Hulbert, 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.