QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

19 km ENE of Georgetown, Idaho

· 5.8 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bear Lake County 31 kmCaribou County 44 kmLincoln County 50 kmFranklin County 69 kmBannock County 91 kmRich County 101 kmCache County 102 kmSublette County 103 kmBonneville County 104 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 2.1 (ml)
Depth
5.8 km below the surface
Felt
no reports yet
Nearest
Bear Lake County, 31 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1798 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 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.

Where

Epicentre 42.5307, -111.1393. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bear Lake County, ID 31 km (19 mi) NNE of here earthquakes near Bear Lake County
Caribou County, ID 44 km (27 mi) SE of here earthquakes near Caribou County
Lincoln County, WY 50 km (31 mi) NW of here earthquakes near Lincoln County
Franklin County, ID 69 km (43 mi) NE of here earthquakes near Franklin County
Bannock County, ID 91 km (57 mi) E of here earthquakes near Bannock County
Rich County, UT 101 km (63 mi) N of here earthquakes near Rich County

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

Aftershocks so far

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

  1. 1.6 16 km NNW of Taylor, Wyoming
  2. 2.0 16 km NNW of Taylor, Wyoming
  3. 1.8 17 km NNW of Taylor, Wyoming
  4. 1.6 18 km NNW of Taylor, Wyoming
  5. 1.6 17 km NNW of Taylor, Wyoming
  6. 2.0 16 km NNW of Taylor, Wyoming
  7. 1.9 18 km NNW of Taylor, Wyoming
  8. 1.6 18 km NNW of Taylor, Wyoming
  9. 1.9 17 km NNW of Taylor, Wyoming
  10. 3.0 18 km NNW of Taylor, Wyoming
  11. 2.6 18 km NNW of Taylor, Wyoming
  12. 1.8 18 km NNW of Taylor, Wyoming
  13. 3.6 17 km NNW of Taylor, Wyoming
  14. 1.7 southern Idaho
  15. 3.0 17 km NNW of Taylor, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.3 on 2017-09-02 — it released about 63,000 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.