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United States · California

M1.9 Earthquake near Castella, California (United States)

UTC time: 2026-10-20 00:17:42 UTC Local time: —

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About this earthquake

A magnitude M1.9 earthquake was recorded near Castella, California (United States) on October 20, 2026 at 00:17 UTC. With a focal depth of about 3 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 138 earthquakes, the strongest at M4.5.

Details

ID
028a3081773ef1510a974ea624ed2af5713425e1
Magnitude
M1.9
Depth
3.3 km
UTC time
2026-10-20 00:17:42 UTC
Local time
—
Country
United States
State
California
City
Castella
County
Shasta County
Source
usgs
Coordinates
41.15250, -122.31717
Temperature
15.1°C

Depth profile

Depth profile Depth: 3.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 3.3 km
Shallow
3.3 km
3.3 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

Volcanoes nearby

  • Shasta
    Distance: 30 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Medicine Lake
    Distance: 82 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Lassen Volcanic Center
    Distance: 100 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Crater Lake
    Distance: 200 km ·Caldera ·Elevation: 2'487 m ·Last eruption: -2850 ·United States
  • Cinnamon Butte
    Distance: 233 km ·Pyroclastic cone(s) ·Elevation: 1'958 m ·United States
  • Clear Lake Volcanic Field
    Distance: 246 km ·Volcanic field ·Elevation: 1'439 m ·United States

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.

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Historic earthquake map · United States

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