QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

Earthquake near Conda, ID

No earthquake was likely felt in Conda in the 24 hours to 5:26 pm MST (00:26 UTC). The last one was M 2.1, 13 km (8 mi) SE, at 10:47 am MDT on 10 October 2026, estimated intensity II (weak) in town. Every earthquake near Conda

This page: a magnitude 2.9 earthquake was recorded 20 km (12 mi) west-southwest of Conda, ID, at 9:35 am MST on 17 January 2023 (16:35 UTC), 5.0 km deep. 14 people have reported feeling it to USGS.

USGS: 10 km ESE of Bancroft, Idaho

9:35 am MST, Jan 17, 2023 · · 5.0 km deep · released about 680 lb of TNT

10 km30 km60 km120 km N Caribou County 22 kmBannock County 37 kmFranklin County 57 kmBear Lake County 58 kmBingham County 78 kmBonneville County 80 kmOneida County 83 kmPower County 88 kmLincoln County 103 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
9:35 am MST on 17 January 2023 ()
Where
20 km (12 mi) west-southwest of Conda, ID · earthquakes near Conda
Idaho today
every earthquake in Idaho in the last 24 hours
Magnitude
M 2.9 (ml)
Depth
5.0 km below the surface
Felt
14 reports · strongest reported intensity III
Nearest
Caribou County, 22 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1321 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 32 km (20 mi) from the epicentre. In Conda, 20 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Soda Springs 14 km, intensity III · Conda 20 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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

The largest earthquake within 50 km since 2016 was M 5.3 on 2017-09-02 — about 4,000 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.3 29 km WSW of Freedom, Idaho · 40 km NE of this epicentre

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 42.6878, -111.7715. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Caribou County, ID 22 km (13 mi) ENE earthquakes near Caribou County
Bannock County, ID 37 km (23 mi) W earthquakes near Bannock County
Franklin County, ID 57 km (36 mi) S earthquakes near Franklin County
Bear Lake County, ID 58 km (36 mi) SE earthquakes near Bear Lake County
Bingham County, ID 78 km (48 mi) NW earthquakes near Bingham County
Bonneville County, ID 80 km (49 mi) N earthquakes near Bonneville 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. 3.2 20 km W of Fairview, Wyoming
  2. 2.6 11 km ENE of Georgetown, Idaho
  3. 2.0 15 km SW of Georgetown, Idaho
  4. 3.0 11 km ENE of Georgetown, Idaho
  5. 1.8 16 km SW of Grace, Idaho
  6. 2.5 14 km ENE of Soda Springs, Idaho
  7. 1.6 16 km SE of Grace, Idaho
  8. 2.3 17 km WSW of Georgetown, Idaho
  9. 1.8 21 km NNE of Georgetown, Idaho
  10. 1.6 32 km W of Freedom, Idaho
  11. 1.6 12 km ENE of Soda Springs, Idaho
  12. 2.5 10 km ENE of Soda Springs, Idaho
  13. 2.6 8 km NE of Soda Springs, Idaho
  14. 2.2 16 km SE of Grace, Idaho
  15. 1.7 17 km WSW of Georgetown, Idaho

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.