QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Searles Valley, CA

No earthquake was likely felt in Searles Valley in the 24 hours to 1:35 pm PST (21:35 UTC). The last one was M 2.7, 21 km (13 mi) N, at 11:15 am PST on 4 November 2026, estimated intensity II (weak) in town. Every earthquake near Searles Valley

This page: a magnitude 2.1 earthquake was recorded 11 km (7 mi) west of Searles Valley, CA, at 10:47 am PDT on 23 July 2019 (17:47 UTC), 11 km deep.

USGS: 11km W of Searles Valley, CA

10:47 am PDT, Jul 23, 2019 · · 11 km deep · released about 51 lb of TNT

10 km30 km60 km120 km N Inyo County 90 kmKern County 118 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
10:47 am PDT on 23 July 2019 ()
Where
11 km (7 mi) west of Searles Valley, CA · earthquakes near Searles Valley
Magnitude
M 2.1 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Inyo County, 90 km N
Nearest mapped fault
Airport Lake fault, 18 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 2669 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. In Searles Valley, 11 km away, the estimate is intensity II (weak). 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.

Likely felt in: Searles Valley 11 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 51 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 5.8 300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 210,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 51 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

The largest earthquake within 50 km since 2016 was M 7.1 on 2019-07-06 — about 27,000,000 times the energy of this one.

Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.3 The 1946 Walker Pass, California Earthquake · 38 km W of this epicentre
  2. 5.8 16km NNE of Ridgecrest, California · 10 km W of this epicentre
  3. 5.4 14km NW of Inyokern, CA · 37 km W of this epicentre
  4. 5.4 4km N of Inyokern, CA · 28 km WSW of this epicentre
  5. 5.4 17km N of Ridgecrest, California · 12 km W 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 35.7575, -117.5292. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 90 km (56 mi) N earthquakes near Inyo County
Kern County, CA 118 km (73 mi) WSW earthquakes near Kern County
Tulare County, CA 124 km (77 mi) WNW earthquakes near Tulare County

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

Aftershocks so far

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

  1. 1.9 13km ENE of Coso Junction, CA
  2. 1.9 15km SSW of Searles Valley, CA
  3. 2.5 23km ESE of Little Lake, CA
  4. 2.3 14km ENE of Ridgecrest, CA
  5. 1.7 18km NNE of Ridgecrest, CA
  6. 1.6 13km ENE of Ridgecrest, CA
  7. 2.0 28km N of Searles Valley, CA
  8. 1.8 10km ENE of Coso Junction, CA
  9. 1.7 21km NNE of Inyokern, CA
  10. 1.9 30km NNW of Searles Valley, CA
  11. 1.6 18km E of Little Lake, CA
  12. 1.9 14km SSW of Searles Valley, CA
  13. 2.3 21km E of Little Lake, CA
  14. 2.0 24km N of Ridgecrest, CA
  15. 1.9 17km E of Ridgecrest, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.