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M5.1 Earthquake near 64 km W of Petrolia, CA

UTC time: 2026-06-03 12:45:35 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded Content updated:

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis. How our reports are produced ↗

Magnitude
M5.1
Depth
0.2 km
Source
USGS

64 km W of Petrolia, CA

Map

M5.1 Earthquake near 64 km W of Petrolia, CA · 2026-06-03 — Map showing the location of the epicenter
M5.1 Earthquake near 64 km W of Petrolia, CA · 2026-06-03 — Map showing the location of the epicenter

About this earthquake

On June 3, 2026 at 12:45 UTC, a magnitude M5.1 earthquake occurred near 64 km W of Petrolia, CA. The hypocenter lay relatively close to the surface at around 0 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by USGS.

Details

ID
ae0240e5976e536fac804106e3fe3304aaae6004
Magnitude
M5.1
Depth
0.2 km
UTC time
2026-06-03 12:45:35 UTC
Local time
—
Country
—
Source
usgs
Coordinates
40.36017, -125.04450
Temperature
11.7°C

Depth profile

Depth profile Depth: 0.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 0.2 km
Shallow
0.2 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Official USGS aftershock forecast

Probability of at least one aftershock at or above the specified magnitude during the entire stated time window. This does not predict an individual earthquake.

Issued: Sep 2, 2026, 12:45 PM UTC · Last checked: Sep 8, 2026, 6:07 AM UTC

Sep 2, 2026, 1:00 PM UTC – Sep 3, 2026, 1:00 PM UTC · Expired
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.00.16 %0–0
M ≥ 4.00.02 %0–0
M ≥ 5.0< 0.01 %0–0
M ≥ 6.0< 0.01 %0–0
M ≥ 7.0< 0.01 %0–0
Sep 2, 2026, 1:00 PM UTC – Sep 9, 2026, 1:00 PM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.01.09 %0–0
M ≥ 4.00.11 %0–0
M ≥ 5.00.01 %0–0
M ≥ 6.0< 0.01 %0–0
M ≥ 7.0< 0.01 %0–0
Sep 2, 2026, 1:00 PM UTC – Oct 2, 2026, 1:00 PM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.04.04 %0–1
M ≥ 4.00.41 %0–0
M ≥ 5.00.04 %0–0
M ≥ 6.0< 0.01 %0–0
M ≥ 7.0< 0.01 %0–0
Sep 2, 2026, 1:00 PM UTC – Sep 2, 2027, 1:00 PM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.018.62 %0–1
M ≥ 4.02.10 %0–0
M ≥ 5.00.21 %0–0
M ≥ 6.00.02 %0–0
M ≥ 7.0< 0.01 %0–0

The range is the 95% forecast interval for the number of earthquakes. Magnitude thresholds and time windows overlap: do not add the values. Windows already in progress still refer to the entire stated period.

Source: USGS — Operational Aftershock Forecast

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Eureka89.2 kmNE27'017
Chico281.9 kmE121'345
Sacramento363.2 kmSE524'943

GeoNames · CC BY 4.0

Volcanoes nearby

  • Escanaba Segment
    Distance: 218 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Clear Lake Volcanic Field
    Distance: 249 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Jackson Segment
    Distance: 260 km ·Fissure vent(s) ·Elevation: -3'100 m ·United States
  • Shasta
    Distance: 267 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • North Gorda Ridge Segment
    Distance: 295 km ·Fissure vent(s) ·Elevation: -3'000 m ·Last eruption: 1996 ·United States
  • Lassen Volcanic Center
    Distance: 300 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Nuclear power plants

  • Humboldt Bay nuclear power plantUnited StatesPermanently shut downReactor units at site: 1
    82.3 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours6
First 24 hours8
First 72 hours11
Strongest subsequent eventM5.1
M5.12026-06-03 12:45:39 UTC16.6 kmOFFSHORE NORTHERN CALIFORNIA M5.12026-06-03 12:45:41 UTC32.4 kmUnited States M4.42026-06-03 13:11:38 UTC20.9 kmNear Coast of Northern California M2.72026-06-03 15:05:14 UTC0.9 kmOFFSHORE NORTHERN CALIFORNIA M2.82026-06-03 15:05:15 UTC0.9 km64 km W of Petrolia, CA M3.52026-06-03 15:51:18 UTC3.2 kmOFFSHORE NORTHERN CALIFORNIA M4.62026-06-04 02:36:14 UTC1.0 kmOFFSHORE NORTHERN CALIFORNIA M4.62026-06-04 02:36:18 UTC15.1 kmNear Coast of Northern California M2.02026-06-04 17:53:52 UTC16.4 kmOFFSHORE NORTHERN CALIFORNIA M2.72026-06-05 21:13:29 UTC52.6 kmOFFSHORE NORTHERN CALIFORNIA M2.02026-06-05 22:43:40 UTC146.2 kmMendocino County M2.72026-06-06 14:37:17 UTC7.2 kmOFFSHORE NORTHERN CALIFORNIA

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#2
Earlier events M≥430
Earlier events M≥52
Compared since2025-01-26

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M5.42026-06-03 10:54:01 UTC78.6 kmOff Coast of Northern California M5.02026-05-09 04:57:58 UTC131.4 kmOFFSHORE NORTHERN CALIFORNIA M4.92026-05-09 04:58:03 UTC136.8 kmOff Coast of Northern California M4.82026-05-09 04:57:58 UTC130.5 km108 km WSW of Crescent City, CA M4.82025-05-26 08:18:01 UTC40.8 kmNear Coast of Northern California

Stats (last 24h)

Global (24h)
502
Country (24h)
—
—
Current earthquakes in
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