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M1.8 Depth: 13.0 km

M1.8 Earthquake near 5 km WSW of San Lorenzo, CA (United States)

UTC time: 2025-12-16 12:46:33 UTC Local time: —

About this earthquake

On December 16, 2025 at 12:46 UTC, a magnitude M1.8 earthquake occurred near 5 km WSW of San Lorenzo, CA (United States). With a focal depth of about 13 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 217 earthquakes, the strongest at M5.3.

Details

Magnitude
M1.8
Depth
13.0 km
UTC time
2025-12-16 12:46:33 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
37.65767, -122.17033
Temperature
6.6°C

Map

Depth profile

Depth profile Depth: 13 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 13 km
Shallow
13 km
13 km — close to the regional average (15.7 km)
Regional average: 15.7 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: 155 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mammoth Mountain
    Distance: 276 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 277 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 278 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Lassen Volcanic Center
    Distance: 320 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Soda Lakes
    Distance: 354 km ·Maar(s) ·Elevation: 1'251 m ·United States

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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