QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Searles Valley, CA

No earthquake was likely felt in Searles Valley in the 24 hours to 8:17 am PST (16:17 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 1.5 earthquake was recorded 24 km (15 mi) northeast of Searles Valley, CA, at 11:23 am PDT on 28 June 2017 (18:23 UTC), 5.3 km deep.

USGS: 23km NE of Trona, CA

11:23 am PDT, Jun 28, 2017 · · 5.3 km deep · released about 5.7 lb of TNT

Every earthquake near Searles Valley Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Inyo County 72 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
11:23 am PDT on 28 June 2017 ()
Where
24 km (15 mi) northeast of Searles Valley, CA · earthquakes near Searles Valley
Magnitude
M 1.5 (ml)
Depth
5.3 km below the surface
Felt
no reports yet
Nearest
Inyo County, 72 km NNW
Nearest mapped fault
Ash Hill fault, 4 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 3423 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 9 km (6 mi) from the epicentre. In Searles Valley, 24 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.

How big was it?

This earthquake released about 5.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 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 8 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.0 Death Valley area, California · 22 km ENE of this epicentre
  2. 5.9 Death Valley area, California · 22 km ENE of this epicentre
  3. 5.8 16km NNE of Ridgecrest, California · 42 km WSW of this epicentre
  4. 5.4 17km N of Ridgecrest, California · 43 km WSW of this epicentre
  5. 5.3 27km E of Coso Junction, California · 41 km WNW 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 35.9305, -117.2270. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Inyo County, CA 72 km (45 mi) NNW earthquakes near Inyo County
San Bernardino County, CA 152 km (95 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

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

  1. 1.6 32km NNW of Searles Valley, CA
  2. 2.2 43km ENE of Trona, CA
  3. 2.1 42km ENE of Trona, CA
  4. 2.3 43km ENE of Trona, CA
  5. 2.1 43km ENE of Trona, CA
  6. 1.6 26km E of Coso Junction, CA
  7. 1.6 12km NNE of Ridgecrest, CA
  8. 2.1 27km ENE of Coso Junction, CA
  9. 1.6 8km SSW of Searles Valley, CA
  10. 1.8 21km NNE of Trona, CA
  11. 2.0 22km E of Little Lake, CA
  12. 2.0 22km E of Coso Junction, CA
  13. 1.9 33km ENE of Coso Junction, CA
  14. 1.8 39km NE of Trona, CA
  15. 2.0 28km N 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.

On USGS

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