QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

29 km ENE of Eagleville, California

Yes. A magnitude 1.6 earthquake was recorded 29 km ENE of Eagleville, California, at 2:43 pm PDT on 17 June 2023 (21:43 UTC), 8.4 km deep.

· 8.4 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washoe County 79 kmModoc County 79 kmLassen County 106 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 1.6 (ml)
Depth
8.4 km below the surface
Felt
no reports yet
Nearest
Washoe County, 79 km S
Nearest mapped fault
Lake City fault, 22 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1242 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 7 km (4 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 lists one earthquake of M5 or more within 50 km:

  1. 5.2 12 km SE of Eagleville, California · 27 km SW of this epicentre

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 41.4343, -119.7943. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Washoe County, NV 79 km (49 mi) S earthquakes near Washoe County
Modoc County, CA 79 km (49 mi) WNW earthquakes near Modoc County
Lassen County, CA 106 km (66 mi) SW earthquakes near Lassen County
Pershing County, NV 161 km (100 mi) SE earthquakes near Pershing County

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

Aftershocks so far

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

  1. 1.9 41 km E of Fort Bidwell, California
  2. 2.0 39 km E of Fort Bidwell, California
  3. 1.8 38 km E of Fort Bidwell, California
  4. 1.6 44 km E of Fort Bidwell, California
  5. 1.8 31 km ESE of Fort Bidwell, California
  6. 1.5 31 km ESE of Fort Bidwell, California
  7. 1.9 31 km ESE of Fort Bidwell, California
  8. 2.0 30 km ESE of Fort Bidwell, California
  9. 2.2 40 km E of Fort Bidwell, California
  10. 2.1 12 km SW of Lake City, California
  11. 2.3 42 km ESE of Fort Bidwell, California
  12. 2.0 41 km E of Fort Bidwell, California
  13. 2.3 21 km NNE of Cedarville, CA
  14. 1.6 14 km SE of Eagleville, California
  15. 2.1 42 km E of Fort Bidwell, California

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.