QuakeIndex

Earthquake · reviewed by a seismologist

M 0.4ml

Earthquake near Searles Valley, CA

USGS: 13 km SSW of Searles Valley, CA

11:17 am PDT, Sep 28, 2026 · · 7.0 km deep · released about 0.12 lb of TNT

10 km30 km60 km120 km N Inyo County 100 kmKern County 119 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
11:17 am PDT on 28 September 2026 ()
Where
13 km (8 mi) SSW of Searles Valley, CA · earthquakes near Searles Valley
Magnitude
M 0.4 (ml)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Inyo County, 100 km N
Nearest mapped fault
Garlock fault, 19 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 4 days ago

A magnitude 0.4 earthquake was recorded 13 km (8 mi) SSW of Searles Valley, CA, at 11:17 am PDT on 28 September 2026 (18:17 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Ridgecrest, China Lake Acres.

How big was it?

This earthquake released about 0.12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 1.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 92,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 8,200× the energy of this one
  4. This earthquake M 0.4 about 0.12 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 12,000,000,000 times the energy of this one.

Before 2016, the USGS record lists 13 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.3 The 1946 Walker Pass, California Earthquake · 43 km W of this epicentre
  2. 5.8 16km NNE of Ridgecrest, California · 18 km NW of this epicentre
  3. 5.4 14km NW of Inyokern, CA · 43 km W of this epicentre
  4. 5.4 4km N of Inyokern, CA · 32 km W of this epicentre
  5. 5.4 17km N of Ridgecrest, California · 21 km NW 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 35.6675, -117.4702. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 100 km (62 mi) N earthquakes near Inyo County
Kern County, CA 119 km (74 mi) WSW earthquakes near Kern County
Tulare County, CA 133 km (83 mi) WNW earthquakes near Tulare County
San Bernardino County, CA 148 km (92 mi) SE earthquakes near San Bernardino County

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

Aftershocks so far

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

  1. 1.1 21 km N of Searles Valley, CA
  2. 2.1 21 km N of Searles Valley, CA
  3. 0.6 20 km ESE of Little Lake, CA
  4. 0.7 22 km ESE of Little Lake, CA
  5. 1.2 6 km E of Ridgecrest, CA
  6. 0.7 20 km WNW of Searles Valley, CA
  7. 0.6 21 km E of Little Lake, CA
  8. 0.6 15 km WSW of Searles Valley, CA
  9. 0.9 16 km WSW of Johannesburg, CA
  10. -0.1 12 km WSW of Searles Valley, CA
  11. 0.8 22 km ESE of Little Lake, CA
  12. 1.3 20 km ESE of Little Lake, CA
  13. 1.4 20 km ESE of Little Lake, CA
  14. 1.7 16 km WSW of Johannesburg, CA
  15. 1.8 15 km NE 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.