QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

7km SE of Ridgecrest, CA

· 5.5 km deep · released about 18 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 103 kmInyo 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 1.9 (ml)
Depth
5.5 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Kern County, 103 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2529 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 18 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 5.8 840,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 600,000× the energy of this one
  3. Around the size people start to feel M 3.0 53× the energy of this one
  4. This earthquake M 1.9 about 18 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 35.5735, -117.6235. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 103 km (64 mi) ENE of here earthquakes near Kern County
Inyo County, CA 112 km (69 mi) S of here earthquakes near Inyo County
Tulare County, CA 127 km (79 mi) SE 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 12km WSW of Searles Valley, CA
  2. 2.0 12km ENE of Ridgecrest, CA
  3. 1.7 12km WSW of Searles Valley, CA
  4. 1.5 8km E of Ridgecrest, CA
  5. 2.4 13km WSW of Searles Valley, CA
  6. 2.6 9km ENE of Ridgecrest, CA
  7. 1.7 12km ENE of Ridgecrest, CA
  8. 2.0 11km E of Ridgecrest, CA
  9. 1.6 13km WSW of Searles Valley, CA
  10. 1.6 9km E of Ridgecrest, CA
  11. 1.8 15km ENE of Ridgecrest, CA
  12. 1.8 15km ENE of Ridgecrest, CA
  13. 1.7 14km SW of Searles Valley, CA
  14. 1.6 6km ESE of Ridgecrest, CA
  15. 1.9 12km WSW of Searles Valley, 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 6.4 on 2019-07-04 — it released about 6,700,000 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.