QuakeIndex

Earthquake · reviewed by a seismologist

M 0.5ml

Earthquake near Westmorland, CA

Yes. A magnitude 0.5 earthquake was recorded 22 km (14 mi) southwest of Westmorland, CA, at 3:22 pm PST on 10 November 2026 (23:22 UTC), 7.5 km deep. No felt reports to USGS yet.

USGS: 22 km SW of Westmorland, CA

3:22 pm PST, Nov 10, 2026 · · 7.5 km deep · released about 0.17 lb of TNT

10 km30 km60 km120 km N Imperial County 44 kmSan Diego County 92 kmRiverside County 93 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
3:22 pm PST on 10 November 2026 ()
Where
22 km (14 mi) southwest of Westmorland, CA · earthquakes near Westmorland
Magnitude
M 0.5 (ml)
Depth
7.5 km below the surface
Felt
no reports yet
Nearest
Imperial County, 44 km ENE
Nearest mapped fault
San Jacinto fault, 3 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 1 hour ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. 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.

Earthquakes near other towns within 30 km: Seeley, Imperial, El Centro, Brawley.

How big was it?

This earthquake released about 0.17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 1.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 5,600× the energy of this one
  4. This earthquake M 0.5 about 0.17 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 5.3 on 2021-06-05 — about 13,000,000 times the energy of this one.

Before 2016, the USGS record lists 42 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.9 The 1940 Imperial Valley, California Earthquake · 40 km E of this epicentre
  2. 6.6 The 1942 Fish Creek Mountains, California Earthquake · 8 km N of this epicentre
  3. 6.6 The 1968 Borrego Mountain, California Earthquake · 41 km NW of this epicentre
  4. 6.6 The 1987 Superstition Hills, California Earthquake · 13 km NNW of this epicentre
  5. 6.4 The 1979 Imperial Valley Earthquake, California-Baja California · 49 km ESE 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 32.9078, -115.7987. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Imperial County, CA 44 km (27 mi) ENE earthquakes near Imperial County
San Diego County, CA 92 km (57 mi) W earthquakes near San Diego County
Riverside County, CA 93 km (58 mi) NNW earthquakes near Riverside County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.