QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

12 km SW of Georgetown, Idaho

· 6.5 km deep · released about 22 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bear Lake County 20 kmFranklin County 39 kmCaribou County 41 kmBannock County 68 kmLincoln County 70 kmCache County 79 kmOneida County 89 kmRich County 91 kmBonneville 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
Magnitude
M 1.9 (ml)
Depth
6.5 km below the surface
Felt
no reports yet
Nearest
Bear Lake County, 20 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2489 days ago

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

How big was it?

This earthquake released about 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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.

Where

Epicentre 42.4202, -111.4905. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bear Lake County, ID 20 km (12 mi) NW of here earthquakes near Bear Lake County
Franklin County, ID 39 km (24 mi) NE of here earthquakes near Franklin County
Caribou County, ID 41 km (25 mi) S of here earthquakes near Caribou County
Bannock County, ID 68 km (42 mi) ESE of here earthquakes near Bannock County
Lincoln County, WY 70 km (43 mi) WNW of here earthquakes near Lincoln County
Cache County, UT 79 km (49 mi) NNE of here earthquakes near Cache 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. 2.3 19 km WSW of Fairview, Wyoming
  2. 2.4 8 km WSW of Smoot, Wyoming
  3. 2.7 12 km E of Soda Springs, Idaho
  4. 1.7 17 km WSW of Georgetown, Idaho
  5. 1.9 13 km ESE of Soda Springs, Idaho
  6. 2.0 13 km E of Soda Springs, Idaho
  7. 2.0 17 km E of Soda Springs, Idaho
  8. 2.2 12 km WSW of Georgetown, Idaho
  9. 2.0 3 km WNW of Georgetown, Idaho
  10. 1.6 12 km WSW of Georgetown, Idaho
  11. 1.7 7 km N of Garden City, Utah
  12. 1.7 3 km W of Georgetown, Idaho
  13. 1.9 15 km E of Soda Springs, Idaho
  14. 1.7 4 km SSE of Georgetown, Idaho
  15. 1.6 4 km SSE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.3 on 2017-09-02 — it released about 120,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.