QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

Earthquake near Conda, ID

No earthquake was likely felt in Conda in the 24 hours to 2:59 am MST (09:59 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 1.7 earthquake was recorded 42 km (26 mi) south of Conda, ID, at 10:41 pm MST on 4 February 2023 (05:41 UTC), less than 1 km deep.

USGS: 15 km WSW of Bennington, Idaho

10:41 pm MST, Feb 4, 2023 · · -3.0 km deep · released about 12 lb of TNT

10 km30 km60 km120 km N Bear Lake County 17 kmFranklin County 33 kmCaribou County 48 kmLincoln County 69 kmBannock County 70 kmCache County 72 kmRich County 84 kmOneida County 85 kmPower County 116 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
10:41 pm MST on 4 February 2023 ()
Where
42 km (26 mi) south of Conda, ID · earthquakes near Conda
Idaho today
every earthquake in Idaho in the last 24 hours
Magnitude
M 1.7 (md)
Depth
-3.0 km below the surface
Felt
no reports yet
Nearest
Bear Lake County, 17 km ESE
Nearest mapped fault
Western Bear Lake fault, 10 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1376 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 13 km (8 mi) from the epicentre. In Conda, 42 km away, the estimate is intensity I (not felt). 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.

Earthquakes near other towns within 30 km: Montpelier.

How big was it?

This earthquake released about 12 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 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 900,000× the energy of this one
  3. Around the size people start to feel M 3.0 80× the energy of this one
  4. This earthquake M 1.7 about 12 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 230,000 times the energy of this one.

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

  1. 5.8 8 km W of Garden City, Utah · 46 km S 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 42.3543, -111.5073. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Bear Lake County, ID 17 km (10 mi) ESE earthquakes near Bear Lake County
Franklin County, ID 33 km (20 mi) SW earthquakes near Franklin County
Caribou County, ID 48 km (30 mi) N earthquakes near Caribou County
Lincoln County, WY 69 km (43 mi) E earthquakes near Lincoln County
Bannock County, ID 70 km (44 mi) WNW earthquakes near Bannock County
Cache County, UT 72 km (45 mi) SSW earthquakes near Cache 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. 1.6 16 km ENE of Bennington, Idaho
  2. 2.3 17 km WSW of Georgetown, Idaho
  3. 3.8 19 km WSW of Fairview, Wyoming
  4. 1.8 21 km NNE of Georgetown, Idaho
  5. 2.3 12 km SW of Saint Charles, Idaho
  6. 2.0 1 km SSE of Paris, Idaho
  7. 1.5 17 km W of Bloomington, Idaho
  8. 1.6 12 km ENE of Soda Springs, Idaho
  9. 2.5 10 km ENE of Soda Springs, Idaho
  10. 2.6 8 km NE of Soda Springs, Idaho
  11. 2.2 16 km SE of Grace, Idaho
  12. 1.7 17 km WSW of Georgetown, Idaho
  13. 2.1 14 km SW of Georgetown, Idaho
  14. 2.7 17 km SE of Grace, Idaho
  15. 1.9 18 km SW of Fairview, Wyoming

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.