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United States · California

M5.5 Earthquake near Mendocino County, California (United States)

UTC time: 2026-06-24 15:10:40 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

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

Map

M5.5 Earthquake near Mendocino County, California (United States) · 2026-06-24 — Map showing the location of the epicenter
M5.5 Earthquake near Mendocino County, California (United States) · 2026-06-24 — Map showing the location of the epicenter

About this earthquake

On June 24, 2026 at 15:10 UTC, a magnitude M5.5 earthquake occurred near Mendocino County, California (United States). The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The data is provided by EMSC and cross-checked across seismological networks. United States: 150 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

Details

ID
c117131b2f241dc953db6d0830fae366db47e4e0
Magnitude
M5.5
Depth
10.0 km
UTC time
2026-06-24 15:10:40 UTC
Local time
—
Country
United States
State
California
City
Mendocino County
County
Mendocino County
Source
emsc
Coordinates
39.38530, -123.25230
Temperature
22.3°C

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 km
10 km — shallower than the regional average (15.3 km)
Regional average: 15.3 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

Felt reports

105felt reports at EMSC / LastQuake

Voluntary reports of feeling this earthquake. The count is not an intensity measurement and is not added to USGS DYFI reports.

Data updated: Jun 25, 2026, 12:12 AM UTC · Last checked: Sep 6, 2026, 12:18 PM UTC

Source: EMSC / LastQuake

Estimated impact

Yellow Local impact possible.
Estimated population exposed
IV 67'221
V 62'031
VI 10'816
VII 9'723

≈ 20'539 people experienced strong to very strong shaking.

5'062 Felt reports · max reported intensity 6.8

Ground shaking

VII
Very strong · Intensity (MMI) VII
Moderate damage possible.

Tectonic context

Located on the North America Plate.
Near the boundary North America ↔ Pacific · about 46 km away

Nearby population centers

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

PlaceDistanceDirectionPopulation
Ukiah26.4 kmS15'917
Santa Rosa114.9 kmSE178'127
Sacramento176.3 kmSE524'943

GeoNames · CC BY 4.0

Volcanoes nearby

  • Clear Lake Volcanic Field
    Distance: 62 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 193 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Shasta
    Distance: 242 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Medicine Lake
    Distance: 286 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Soda Lakes
    Distance: 376 km ·Maar(s) ·Elevation: 1'251 m ·United States
  • Mono Lake Volcanic Field
    Distance: 397 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States

Subsequent earthquakes nearby

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

First 6 hours26
First 24 hours53
First 72 hours110
Strongest subsequent eventM5.8
M5.62026-06-24 15:10:41 UTC3.1 kmMendocino County M5.22026-06-24 15:10:42 UTC10.5 kmMendocino County M5.62026-06-24 15:10:42 UTC17.7 kmMendocino County M5.42026-06-24 15:10:43 UTC39.3 kmMendocino County M5.82026-06-24 15:10:43 UTC34.5 kmMendocino County M1.12026-06-24 15:16:45 UTC75.2 kmCobb M2.52026-06-24 15:17:28 UTC3.8 kmMendocino County M1.52026-06-24 15:26:08 UTC5.7 kmMendocino County M2.02026-06-24 15:49:58 UTC6.4 kmMendocino County M1.22026-06-24 15:58:00 UTC80.2 kmSonoma County M1.62026-06-24 15:59:06 UTC3.3 kmMendocino County M0.82026-06-24 16:05:01 UTC75.8 kmSonoma County

California

Context for this earthquake

06 Sep 2025 – 06 Sep 2026 · M ≥ 3.0 · 246 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#1
Earlier events M≥417
Earlier events M≥50
Compared since2025-01-02

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

Strongest earlier events

M4.82025-05-26 08:18:01 UTC147.9 kmNear Coast of Northern California M4.72025-01-02 02:34:04 UTC73.7 kmCobb M4.52026-01-13 21:10:54 UTC1.4 kmMendocino County M4.42026-01-13 21:10:54 UTC0.8 kmMendocino County M4.42025-05-26 08:17:57 UTC144.3 km51 km W of Shelter Cove, California

Historic earthquake map · United States

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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