QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near McCall, ID

USGS: 5 km NW of McCall, Idaho

2:20 pm MDT, Aug 4, 2022 · · 5.0 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Adams County 25 kmValley County 43 kmWashington County 75 kmGem County 100 kmWallowa County 109 kmBoise County 112 kmIdaho County 114 kmPayette County 115 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
2:20 pm MDT on 4 August 2022 ()
Where
5 km (3 mi) NW of McCall, ID · earthquakes near McCall
Magnitude
M 2.1 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Adams County, 25 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1451 days ago

A magnitude 2.1 earthquake was recorded 5 km (3 mi) NW of McCall, ID, at 2:20 pm MDT on 4 August 2022 (20:20 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 44.9418, -116.1511. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Adams County, ID 25 km (16 mi) WSW earthquakes near Adams County
Valley County, ID 43 km (27 mi) ESE earthquakes near Valley County
Washington County, ID 75 km (47 mi) SW earthquakes near Washington County
Gem County, ID 100 km (62 mi) SSW earthquakes near Gem County
Wallowa County, OR 109 km (68 mi) NW earthquakes near Wallowa County
Boise County, ID 112 km (69 mi) SSE earthquakes near Boise County

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

Aftershocks so far

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

  1. 1.7 12 km WNW of Cascade, Idaho
  2. 1.9 17 km NW of New Meadows, Idaho
  3. 1.5 20 km NW of New Meadows, Idaho
  4. 2.0 17 km NW of New Meadows, Idaho
  5. 2.4 21 km NW of New Meadows, Idaho
  6. 2.3 13 km NNW of New Meadows, Idaho
  7. 1.6 15 km ENE of Donnelly, Idaho
  8. 1.5 14 km ENE of Donnelly, Idaho
  9. 3.0 14 km ENE of Donnelly, Idaho
  10. 2.4 12 km WNW of Cascade, Idaho
  11. 2.3 19 km NW of New Meadows, Idaho
  12. 1.7 26 km SSW of Yellow Pine, Idaho
  13. 1.9 12 km ENE of Donnelly, Idaho
  14. 2.8 8 km S of McCall, Idaho
  15. 2.2 7 km S of McCall, 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.