QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

Earthquake near Hailey, ID

No earthquake was likely felt in Hailey in the 24 hours to 7:49 pm MST (02:49 UTC). The last one was M 4.3, 85 km (53 mi) NNE, at 11:05 am MDT on 8 June 2025, estimated intensity II (weak) in town; 27 felt reports to USGS. Every earthquake near Hailey

This page: a magnitude 2.6 earthquake was recorded 47 km (29 mi) west of Hailey, ID, at 7:12 pm MDT on 1 April 2020 (01:12 UTC), 10 km deep.

USGS: 14 km NW of Fairfield, Idaho

7:12 pm MDT, Apr 1, 2020 · · 10 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Camas County 11 kmElmore County 47 kmGooding County 54 kmBlaine County 76 kmLincoln County 79 kmBoise County 89 kmJerome County 99 kmCuster County 105 kmAda County 109 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
7:12 pm MDT on 1 April 2020 ()
Where
47 km (29 mi) west of Hailey, ID · earthquakes near Hailey
Idaho today
every earthquake in Idaho in the last 24 hours
Magnitude
M 2.6 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Camas County, 11 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2335 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 21 km (13 mi) from the epicentre. In Hailey, 47 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.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 43.4546, -114.8940. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Camas County, ID 11 km (7 mi) ENE earthquakes near Camas County
Elmore County, ID 47 km (29 mi) W earthquakes near Elmore County
Gooding County, ID 54 km (33 mi) S earthquakes near Gooding County
Blaine County, ID 76 km (47 mi) E earthquakes near Blaine County
Lincoln County, ID 79 km (49 mi) SE earthquakes near Lincoln County
Boise County, ID 89 km (55 mi) NW earthquakes near Boise County

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

Aftershocks so far

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

  1. 2.2 47 km SSW of Stanley, Idaho
  2. 2.1 southern Idaho
  3. 2.5 40 km S of Stanley, Idaho
  4. 2.2 45 km S of Stanley, Idaho
  5. 1.8 22 km NW of Sun Valley, Idaho
  6. 1.7 36 km SSW of Stanley, 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.