QuakeIndex

Earthquake · reviewed by a seismologist

M 1.1ml

Earthquake near Pine Mountain Club, CA

USGS: 24 km SW of Pine Mountain Club, CA

48 km (30 mi) NE of Santa Barbara, CA · 116 km (72 mi) NW of Los Angeles, CA

8:39 am PDT, Sep 30, 2026 · · 13 km deep · released about 1.4 lb of TNT

10 km30 km60 km120 km N Ventura County 45 kmSanta Barbara County 65 kmKern County 91 kmLos Angeles County 116 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
8:39 am PDT on 30 September 2026 ()
Where
24 km (15 mi) SW of Pine Mountain Club, CA · earthquakes near Pine Mountain Club
Magnitude
M 1.1 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Ventura County, 45 km SSE
Nearest mapped fault
San Andreas fault, 21 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 2 days ago

A magnitude 1.1 earthquake was recorded 24 km (15 mi) SW of Pine Mountain Club, CA, at 8:39 am PDT on 30 September 2026 (15:39 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 1.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 10,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 7,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 660× the energy of this one
  4. This earthquake M 1.1 about 1.4 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 5.2 on 2024-08-07 — about 1,400,000 times the energy of this one.

Before 2016, the USGS record lists 14 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.5 The 1952 Kern County, California Earthquake · 43 km NE of this epicentre
  2. 6.0 Tejon Pass, California · 47 km ENE of this epicentre
  3. 5.8 13km WNW of Grapevine, CA · 39 km NE of this epicentre
  4. 5.5 Southwest of Tejon Pass, California · 33 km E of this epicentre
  5. 5.5 10 km NE of Toro Canyon, California · 27 km SSW 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 34.7147, -119.3580. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Ventura County, CA 45 km (28 mi) SSE earthquakes near Ventura County
Santa Barbara County, CA 65 km (41 mi) WSW earthquakes near Santa Barbara County
Kern County, CA 91 km (56 mi) NE earthquakes near Kern County
Los Angeles County, CA 116 km (72 mi) ESE earthquakes near Los Angeles County
San Luis Obispo County, CA 124 km (77 mi) NW earthquakes near San Luis Obispo County

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

Aftershocks so far

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

  1. 1.1 24 km SW of Pine Mountain Club, CA
  2. 1.0 24 km SW of Pine Mountain Club, 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.

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

What changedFromToWhen
review statusautomaticreviewed
location25 km SW of Pine Mountain Club, CA24 km SW of Pine Mountain Club, CA
longitude-119.37-119.36
latitude34.7234.71
depth10.5612.63
magnitude1.181.12

On USGS

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