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M1.1 Depth: 8.3 km

M1.1 Earthquake near 10 km SSE of Llano, CA (United States)

UTC time: 2025-09-21 03:36:21 UTC Local time: —

About this earthquake

On September 21, 2025 at 03:36 UTC, a magnitude M1.1 earthquake occurred near 10 km SSE of Llano, CA (United States). With a focal depth of about 8 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 167 earthquakes, the strongest at M3.7.

Details

Magnitude
M1.1
Depth
8.3 km
UTC time
2025-09-21 03:36:21 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
34.40650, -117.75350
Temperature
20.5°C

Map

Depth profile

Depth profile Depth: 8.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8.3 km
Shallow
8.3 km
8.3 km — shallower than the regional average (15.4 km)
Regional average: 15.4 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

  • Salton Buttes
    Distance: 239 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 292 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 377 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 395 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 416 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Uinkaret Field
    Distance: 473 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·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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