QuakeIndex

Earthquake · automatic estimate, may change

M 1.7ml

10km NNW of Ridgecrest, CA

· 13 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 100 kmInyo County 100 kmTulare County 112 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 1.7 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Kern County, 100 km WSW
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 2626 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 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 35.7008, -117.7192. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 100 km (62 mi) ENE of here earthquakes near Kern County
Inyo County, CA 100 km (62 mi) SSW of here earthquakes near Inyo County
Tulare County, CA 112 km (70 mi) ESE of here earthquakes near Tulare County

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

Aftershocks so far

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

  1. 2.0 13km ENE of Coso Junction, CA
  2. 1.8 17km E of Little Lake, CA
  3. 1.5 25km S of Trona, CA
  4. 1.6 25km NNE of California City, CA
  5. 1.8 19km E of Little Lake, CA
  6. 2.0 25km NNE of California City, CA
  7. 2.5 16km SW of Searles Valley, CA
  8. 1.6 21km S of Trona, CA
  9. 3.0 15km WSW of Searles Valley, CA
  10. 2.0 15km SW of Searles Valley, CA
  11. 2.6 25km NNE of California City, CA
  12. 1.5 15km SSW of Searles Valley, CA
  13. 2.3 19km ESE of Little Lake, CA
  14. 1.8 18km W of Searles Valley, CA
  15. 2.5 17km S of Trona, CA

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 7.1 on 2019-07-06 — it released about 130,000,000 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.