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United States · California

M1.3 Earthquake near Middleton Tract, California (United States)

UTC time: 2026-09-08 06:20:54 UTC Local time: —

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About this earthquake

A magnitude M1.3 earthquake was recorded near Middleton Tract, California (United States) on September 8, 2026 at 06:20 UTC. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 154 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

ID
1c36ea505fc198eba02ab472860c5ecebc9500d3
Magnitude
M1.3
Depth
-0.2 km
UTC time
2026-09-08 06:20:54 UTC
Local time
—
Country
United States
State
California
City
Middleton Tract
County
San Mateo County
Source
usgs
Coordinates
37.24750, -122.20116
Temperature
14.5°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
0 km — shallower than the regional average (15.3 km)
Regional average: 15.3 km
Negative depth = focus above sea level (terrain elevation).
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: 198 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mammoth Mountain
    Distance: 283 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 286 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 292 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Lassen Volcanic Center
    Distance: 366 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Soda Lakes
    Distance: 385 km ·Maar(s) ·Elevation: 1'251 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Mineta San Jose International AirportUnited States · SJC · KSJC
    27.2 kmStraight-line distance
  • San Carlos AirportUnited States · SQL · KSQL
    29.9 kmStraight-line distance
  • San Francisco International AirportUnited States · SFO · KSFO
    44.1 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-08

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

08 Sep 2025 – 08 Sep 2026 · M ≥ 2.0 · 2,414 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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