QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

26 km SE of Boulder Town, Utah

Yes. A magnitude 2.2 earthquake was recorded 26 km SE of Boulder Town, Utah, at 1:21 am MST on 16 June 2023 (08:21 UTC), 13 km deep.

· 13 km deep · released about 69 lb of TNT

10 km30 km60 km120 km N Garfield County 22 kmWayne County 64 kmKane County 71 kmPiute 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 2.2 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Garfield County, 22 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1245 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 14 km (9 mi) from the epicentre. 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 69 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 220,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 14× the energy of this one
  4. This earthquake M 2.2 about 69 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 37.7162, -111.2408. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Garfield County, UT 22 km (14 mi) NW earthquakes near Garfield County
Wayne County, UT 64 km (40 mi) NNE earthquakes near Wayne County
Kane County, UT 71 km (44 mi) SW earthquakes near Kane County
Piute County, UT 104 km (65 mi) NW earthquakes near Piute County
Sevier County, UT 125 km (78 mi) NNW earthquakes near Sevier County

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

Aftershocks so far

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

  1. 1.7 30 km ESE of Escalante, Utah
  2. 1.7 19 km SSE of Boulder Town, Utah
  3. 2.4 31 km SE of Boulder Town, Utah
  4. 1.6 20 km SE of Boulder Town, Utah
  5. 2.6 28 km NE of Boulder Town, Utah
  6. 2.5 47 km NNW of Halls Crossing, Utah
  7. 3.5 26 km SSE of Boulder Town, Utah
  8. 2.0 26 km SE of Boulder Town, Utah
  9. 1.8 13 km E of Boulder Town, Utah
  10. 2.0 21 km ESE of Boulder Town, Utah
  11. 2.2 35 km SSE of Escalante, Utah

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.