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M1.4 Depth: 6.3 km

M1.4 Earthquake near 5 km SE of Portola Valley, CA (United States)

UTC time: 2025-12-26 21:54:57 UTC Local time: —

About this earthquake

A magnitude M1.4 earthquake was recorded near 5 km SE of Portola Valley, CA (United States) on December 26, 2025 at 21:54 UTC. With a focal depth of about 6 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 event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 127 earthquakes, the strongest at M2.9.

Details

Magnitude
M1.4
Depth
6.3 km
UTC time
2025-12-26 21:54:57 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
37.35000, -122.20517
Temperature
11.6°C

Map

Depth profile

Depth profile Depth: 6.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 6.3 km
Shallow
6.3 km
6.3 km — shallower than the regional average (15.9 km)
Regional average: 15.9 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: 187 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mammoth Mountain
    Distance: 282 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 284 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 289 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Lassen Volcanic Center
    Distance: 355 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Soda Lakes
    Distance: 377 km ·Maar(s) ·Elevation: 1'251 m ·United States

Historic earthquake map · United States

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Country statistics · United States

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

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