QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5mb_lg

Earthquake near Byng, OK

USGS: 4 km SW of Byng, Oklahoma

8:03 pm CDT, Aug 7, 2017 · · 9.3 km deep · released about 170 lb of TNT

Every earthquake near Byng Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pontotoc County 13 kmSeminole County 37 kmCoal County 47 kmHughes County 48 kmPottawatomie County 48 kmMurray County 51 kmGarvin County 58 kmJohnston County 58 kmCleveland County 70 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
8:03 pm CDT on 7 August 2017 ()
Where
4 km (3 mi) SW of Byng, OK · earthquakes near Byng
Magnitude
M 2.5 (mb_lg)
Depth
9.3 km below the surface
Felt
no reports yet
Nearest
Pontotoc County, 13 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3265 days ago

A magnitude 2.5 earthquake was recorded 4 km (3 mi) SW of Byng, OK, at 8:03 pm CDT on 7 August 2017 (01:03 UTC). This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

Earthquakes near other towns within 30 km: Ada, Konawa, Stratford.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 34.8350, -96.7019. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pontotoc County, OK 13 km (8 mi) S earthquakes near Pontotoc County
Seminole County, OK 37 km (23 mi) NNE earthquakes near Seminole County
Coal County, OK 47 km (29 mi) SE earthquakes near Coal County
Hughes County, OK 48 km (30 mi) ENE earthquakes near Hughes County
Pottawatomie County, OK 48 km (30 mi) NNW earthquakes near Pottawatomie County
Murray County, OK 51 km (32 mi) SW earthquakes near Murray County

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

Aftershocks so far

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

  1. 2.0 9 km WNW of Ashland, Oklahoma
  2. 1.6 8 km W of Stonewall, Oklahoma
  3. 1.7 6 km N of Mill Creek, Oklahoma
  4. 1.9 6 km SSE of Yeager, Oklahoma
  5. 2.0 7 km N of Atwood, Oklahoma
  6. 2.2 7 km N of Atwood, Oklahoma
  7. 1.7 6 km SSE of Yeager, Oklahoma
  8. 1.9 6 km SSE of Gerty, Oklahoma
  9. 1.6 6 km SW of Byars, Oklahoma
  10. 1.8 11 km WSW of Byng, Oklahoma
  11. 1.9 6 km SSW of Stonewall, Oklahoma
  12. 1.8 6 km SE of Gerty, Oklahoma
  13. 2.1 5 km WNW of Horntown, Oklahoma
  14. 2.4 6 km WNW of Horntown, Oklahoma
  15. 3.0 6 km SSE of Yeager, 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.