California, United States – Earthquakes

This page summarizes earthquakes in California (United States). The most recently recorded event was a magnitude M1.1 earthquake near Moreno Valley on 2026-10-23 06:38:50 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile ↓
Earthquakes (last 30 days)
2516
Max magnitude (last 30 days)
M3.9
Avg magnitude (last 30 days)
M1.28
Avg depth (last 30 days)
7 km

Seismic profile

Analysis period05 Oct 2025 – 05 Oct 2026Data as of: 05 Oct 2026 · 16:00 UTC
Minimum magnitude

The last update is over two hours old. The figures reflect the data timestamp shown below.

What the data show

California · M ≥ 2.0

After source reconciliation, the catalogue contains 2,447 event entries of M2.0 or above for this area and period, spread over 356 days.

Catalogue entries2,44705 Oct 2025 – 05 Oct 2026
Strongest recorded earthquakeM5.8Mendocino County ↗
Depth · median6.4 km2,382 events with valid depth
Last 30 days197Previous 30 days: 229

These figures describe the stored catalogue. Recording, magnitude types and geographic attribution may vary by source and period; completeness has not been established.

05 Oct 2025 – 05 Oct 2026

Earthquakes by month

M ≥ 2.0

Each bar counts events within the selected period. Hatched months are only partially included.

View data table
MonthAnalysis periodCatalogue entries
October 2025 · Partial month05 Oct 2025 – 31 Oct 2025190
November 202501 Nov 2025 – 30 Nov 2025209
December 202501 Dec 2025 – 31 Dec 2025354
January 202601 Jan 2026 – 31 Jan 2026236
February 202601 Feb 2026 – 28 Feb 2026211
March 202601 Mar 2026 – 31 Mar 202668
April 202601 Apr 2026 – 30 Apr 202676
May 202601 May 2026 – 31 May 2026153
June 202601 Jun 2026 – 30 Jun 2026215
July 202601 Jul 2026 – 31 Jul 2026257
August 202601 Aug 2026 – 31 Aug 2026257
September 202601 Sep 2026 – 30 Sep 2026190
October 2026 · Partial month01 Oct 2026 – 05 Oct 202631

How strong were the earthquakes?

Catalogue entries · 2,447

M 2.0 – < 3.02,208
M 3.0 – < 4.0198
M 4.0 – < 5.035
M 5.0 – < 6.06
M ≥ 6.00

At what depth did they occur?

2,382 events with valid depth

0 – < 30 km2,354
30 – < 70 km26
70 – < 300 km2
300 – 750 km0

65 events without valid depth are excluded here.

Depth · median

Half of the available values lie on either side of the median; ties are possible.

Current period in context

Last 30 days197
Previous 30 days229
Median of the eleven previous 30-day periods228

Same magnitude threshold, separate periods. Differences may also reflect changes in recording. No hazard level or forecast is inferred.

Where were earthquakes recorded?

Events assigned to California in the stored location data are analysed. This is not a radius search. Missing or different attributions are excluded.

The interactive map complements the event links on this page.

Marker size and colour indicate magnitude.

Strongest recorded earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0

Data and methodology

Analysis period: 05 Oct 2025 16:00 – 05 Oct 2026 16:00 UTC

Data and methodology

Reports are first reconciled using existing event associations. Additional reports from different sources are consolidated only when every pair is within 5 seconds, 10 km and 0.5 magnitude units, source groups do not overlap and exactly one group matches. Ambiguous cases remain separate. The preferred report determines magnitude, time and area; period and magnitude filters are applied afterwards. The start is included and the end excluded (UTC).

301 additional source reports were consolidated during source reconciliation.

Events assigned to California in the stored location data are analysed. This is not a radius search. Missing or different attributions are excluded.

These figures describe the stored catalogue. Recording, magnitude types and geographic attribution may vary by source and period; completeness has not been established.

Source reports used

The preferred report of each group is counted. Source priority follows the earthquake list. Different magnitude types and recording gaps limit comparability.

  • USGS1,595
  • SCEDC418
  • EMSC371
  • ISC58
  • GFZ3
  • SERBIA_RSZ1
  • INGV1

The profile is recalculated hourly from the earthquake catalogue. Later source revisions may also change historical values.

Data as of: 05 Oct 2026 · 16:32 UTC

Map (last 30 days)

< 2 2–4 4–5 ≥ 5

About California

California is a state in the Western United States. It is bordered by Oregon to the north, the Mexican state of Baja California to the south, Nevada to the east, Arizona to the southeast, and the Pacific Ocean to the west.

Seismic activity in 2026

In 2026, California recorded 20687 earthquakes within United States. The average magnitude was M1.27. The strongest event reached M5.8.

Based on the number of recorded earthquakes in 2026, California is currently among the Top 5 most active regions in United States (rank #1 by count).

Considering the strongest recorded event in 2026, California is among the Top 5 strongest regions in United States (rank #2 by max magnitude).

Located on the Pacific Plate.

Earthquakes in California (last 30 days)

M0.7
Riverside County
2026-10-23 · 06:38 UTC · 15 km
›
M1.1
Mountain Center
2026-10-23 · 05:51 UTC · 16 km
›
M1.5
Loma Linda
2026-10-23 · 05:50 UTC · 4 km
›
M1.7
Stanislaus County
2026-10-23 · 05:34 UTC · 2 km
›
M1.3
Mono County
2026-10-23 · 05:25 UTC · 11 km
›
M1.1
Redlands
2026-10-23 · 04:58 UTC · 5 km
›
M1.7
Loma Linda
2026-10-23 · 04:57 UTC · 4 km
›
M1.0
Mountain Center
2026-10-23 · 04:13 UTC · 20 km
›
M1.2
Riverside County
2026-10-23 · 04:03 UTC · 8 km
›
M0.5
Radec
2026-10-23 · 03:18 UTC · 11 km
›
M1.0
Santa Clara County
2026-10-23 · 02:17 UTC · 2 km
›
M1.8
Big Pines
2026-10-23 · 01:36 UTC · 11 km
›
M1.5
Sonoma County
2026-10-23 · 01:14 UTC · 3 km
›
M1.0
Fresno County
2026-10-23 · 00:28 UTC · 2 km
›
M1.0
Altadena
2026-10-23 · 00:28 UTC · 7 km
›
M1.7
Altadena
2026-10-23 · 00:28 UTC · 8 km
›
M0.8
Cobb
2026-10-22 · 23:57 UTC · 3 km
›
M1.1
Riverside County
2026-10-22 · 23:53 UTC · 3 km
›
M1.4
Riverside County
2026-10-22 · 23:43 UTC · 32 km
›
M0.4
Anza
2026-10-22 · 23:42 UTC · 6 km
›
M0.8
Anza
2026-10-22 · 23:33 UTC · 6 km
›
M1.3
San Diego County
2026-10-22 · 23:33 UTC · 19 km
›
M1.1
San Diego County
2026-10-22 · 23:30 UTC · 11 km
›
M1.7
Sonoma County
2026-10-22 · 23:13 UTC · 2 km
›
M1.5
San Benito County
2026-10-22 · 23:09 UTC · 1 km
›
M1.5
Downtown Brea
2026-10-22 · 23:05 UTC · 27 km
›
M1.5
Mountain Mesa
2026-10-22 · 22:57 UTC · 3 km
›
M1.0
San Luis Obispo County
2026-10-22 · 22:55 UTC · 6 km
›
M2.3
San Luis Obispo County
2026-10-22 · 22:49 UTC · 6 km
›
M1.3
Los Angeles County
2026-10-22 · 22:00 UTC · 0 km
›
M3.0
San Benito County
2026-10-22 · 21:58 UTC · 6 km
›
M1.6
Sonoma County
2026-10-22 · 21:39 UTC · 2 km
›
M1.1
Cherry Valley
2026-10-22 · 21:34 UTC · 8 km
›
M1.5
Imperial County
2026-10-22 · 21:31 UTC · 12 km
›
M1.3
Ortega Oaks
2026-10-22 · 21:24 UTC · 10 km
›
M0.4
Caldwell Pines
2026-10-22 · 21:11 UTC · 9 km
›
M1.5
San Mateo County
2026-10-22 · 21:09 UTC · 7 km
›
M1.1
Black Oaks
2026-10-22 · 20:34 UTC · 2 km
›
M1.3
Riverside
2026-10-22 · 20:14 UTC · -1 km
›
M1.4
Ontario
2026-10-22 · 20:08 UTC · 10 km
›
M1.0
Riverside County
2026-10-22 · 20:08 UTC · 5 km
›
M1.0
Alameda County
2026-10-22 · 19:45 UTC · 9 km
›
M0.9
Sonoma County
2026-10-22 · 19:11 UTC · 2 km
›
M2.4
San Benito County
2026-10-22 · 19:04 UTC · 0 km
›
M1.1
San Diego County
2026-10-22 · 18:46 UTC · 22 km
›
M1.3
Riverside County
2026-10-22 · 18:22 UTC · 3 km
›
M1.0
Sonoma County
2026-10-22 · 18:09 UTC · 2 km
›
M1.5
Garden Grove
2026-10-22 · 18:04 UTC · 12 km
›
M1.4
Monrovia
2026-10-22 · 17:44 UTC · 24 km
›
M1.5
San Bernardino County
2026-10-22 · 17:39 UTC · 18 km
›
M0.7
Sonoma County
2026-10-22 · 17:39 UTC · 2 km
›
M1.3
San Benito County
2026-10-22 · 17:38 UTC · 7 km
›
M0.8
Riverside County
2026-10-22 · 17:37 UTC · 9 km
›
M1.2
Running Springs
2026-10-22 · 17:37 UTC · -1 km
›
M1.3
Eastvale
2026-10-22 · 17:36 UTC · 19 km
›
M1.1
Sonoma County
2026-10-22 · 17:33 UTC · 2 km
›
M2.6
Riverside County
2026-10-22 · 17:27 UTC · 0 km
›
M1.2
Moreno Valley
2026-10-22 · 17:23 UTC · -1 km
›
M1.4
San Bernardino County
2026-10-22 · 16:36 UTC · 24 km
›
M1.2
Sonoma County
2026-10-22 · 16:11 UTC · 3 km
›
M0.4
Anza
2026-10-22 · 16:10 UTC · 5 km
›
M1.1
Sonoma County
2026-10-22 · 15:41 UTC · 1 km
›
M1.4
Chula Vista
2026-10-22 · 15:25 UTC · 9 km
›
M0.5
Dunneville
2026-10-22 · 15:09 UTC · 0 km
›
M2.0
San Bernardino County
2026-10-22 · 14:43 UTC · 5 km
›
M1.5
Honeydew
2026-10-22 · 14:37 UTC · 14 km
›
M1.4
Inyo County
2026-10-22 · 14:31 UTC · 8 km
›
M1.7
Kern County
2026-10-22 · 14:07 UTC · 6 km
›
M0.6
Sonoma County
2026-10-22 · 14:00 UTC · 3 km
›
M1.2
Redwood Valley
2026-10-22 · 13:03 UTC · 6 km
›
M1.3
Kern County
2026-10-22 · 12:49 UTC · 6 km
›
M1.5
Riverside County
2026-10-22 · 12:39 UTC · 2 km
›
M1.0
San Bernardino County
2026-10-22 · 12:16 UTC · 6 km
›
M1.2
Imperial County
2026-10-22 · 12:15 UTC · 4 km
›
M1.2
San Diego County
2026-10-22 · 11:48 UTC · 15 km
›
M1.1
San Diego County
2026-10-22 · 11:26 UTC · 13 km
›
M1.1
Black Oaks
2026-10-22 · 11:23 UTC · 2 km
›
M0.7
Rawson Canyon
2026-10-22 · 11:19 UTC · 13 km
›
M1.4
Redlands
2026-10-22 · 10:31 UTC · 13 km
›
M1.3
Sonoma County
2026-10-22 · 10:17 UTC · 1 km
›
M0.3
Sonoma County
2026-10-22 · 10:16 UTC · 1 km
›
M1.5
Pumual
2026-10-22 · 10:00 UTC · 23 km
›
M1.0
Redlands
2026-10-22 · 09:51 UTC · 8 km
›
M1.3
Loma Linda
2026-10-22 · 09:35 UTC · 7 km
›
M1.4
San Bernardino County
2026-10-22 · 08:07 UTC · 4 km
›
M0.7
Riverside County
2026-10-22 · 08:01 UTC · 15 km
›
M1.0
Sonoma County
2026-10-22 · 07:46 UTC · 2 km
›
M1.2
Loma Linda
2026-10-22 · 07:43 UTC · 3 km
›
M1.2
Riverside County
2026-10-22 · 07:17 UTC · 15 km
›
M0.9
San Bernardino County
2026-10-22 · 07:15 UTC · 3 km
›
M0.8
Sonoma County
2026-10-22 · 06:28 UTC · 3 km
›
M1.6
Sonoma County
2026-10-22 · 06:22 UTC · 0 km
›
M1.3
Sonoma County
2026-10-22 · 06:09 UTC · 3 km
›
M1.4
Napa County
2026-10-22 · 05:58 UTC · 7 km
›
M1.5
Black Oaks
2026-10-22 · 05:52 UTC · 2 km
›
M1.8
San Benito County
2026-10-22 · 05:44 UTC · 2 km
›
M0.6
Cobb
2026-10-22 · 05:22 UTC · 2 km
›
M1.0
Sonoma County
2026-10-22 · 04:40 UTC · 3 km
›
M3.2
Stanislaus County
2026-10-22 · 04:18 UTC · -1 km
›
M0.3
Black Oaks
2026-10-22 · 04:16 UTC · 2 km
›
M1.0
San Bernardino County
2026-10-22 · 04:07 UTC · 6 km
›
M0.8
Kern County
2026-10-22 · 04:02 UTC · 8 km
›
M0.7
Riverside County
2026-10-22 · 03:54 UTC · -1 km
›
M1.1
Riverside County
2026-10-22 · 03:39 UTC · 13 km
›
M1.0
Sonoma County
2026-10-22 · 03:23 UTC · 3 km
›
M1.5
Humboldt County
2026-10-22 · 03:12 UTC · 13 km
›
M0.3
Sonoma County
2026-10-22 · 02:54 UTC · 2 km
›
M1.3
San Diego County
2026-10-22 · 02:48 UTC · 15 km
›
M1.3
Sonoma County
2026-10-22 · 02:45 UTC · 2 km
›
M1.0
Cobb
2026-10-22 · 02:40 UTC · 2 km
›
M1.1
Humboldt County
2026-10-22 · 02:31 UTC · 13 km
›
M1.8
Humboldt County
2026-10-22 · 02:12 UTC · 13 km
›
M1.7
Humboldt County
2026-10-22 · 01:43 UTC · 14 km
›
M3.3
Humboldt County
2026-10-22 · 01:43 UTC · 11 km
›
M2.3
Trinity County
2026-10-22 · 01:31 UTC · 8 km
›
M0.9
Sonoma County
2026-10-22 · 01:26 UTC · 0 km
›
M1.6
Mendocino County
2026-10-22 · 00:34 UTC · 6 km
›
M1.6
Black Oaks
2026-10-22 · 00:26 UTC · 2 km
›
M1.4
Inyo County
2026-10-21 · 23:38 UTC · 3 km
›
M1.0
Castle Rock Springs
2026-10-21 · 23:20 UTC · 2 km
›