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United States · California

M2.3 Earthquake near Pacifica, California (United States)

UTC time: 2026-08-27 02:13:31 UTC Local time: —

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About this earthquake

On August 27, 2026 at 02:13 UTC, a magnitude M2.3 earthquake occurred near Pacifica, 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 typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 189 earthquakes were recorded in the past 24 hours, the strongest reaching M4.6.

Details

ID
d25ea725a169af6a202335e3ac60f76d770082fc
Magnitude
M2.3
Depth
9.6 km
UTC time
2026-08-27 02:13:31 UTC
Local time
—
Country
United States
State
California
City
Pacifica
County
San Mateo County
Source
usgs
Coordinates
37.60600, -122.47900
Temperature
17.2°C

Depth profile

Depth profile Depth: 9.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9.6 km
Shallow
9.6 km
9.6 km — shallower than the regional average (15.2 km)
Regional average: 15.2 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

Volcanoes nearby

  • Clear Lake Volcanic Field
    Distance: 154 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mammoth Mountain
    Distance: 304 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 304 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 306 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Lassen Volcanic Center
    Distance: 332 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Soda Lakes
    Distance: 379 km ·Maar(s) ·Elevation: 1'251 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • San Francisco International AirportUnited States · SFO · KSFO
    9.3 kmStraight-line distance
  • San Carlos AirportUnited States · SQL · KSQL
    22.6 kmStraight-line distance
  • Oakland San Francisco Bay AirportUnited States · OAK · KOAK
    26.0 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-11

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

California

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 2,447 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

Historic earthquake map · United States

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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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