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M1.2 Depth: 9.2 km

M1.2 Earthquake near 4 km S of Sierraville, California (United States)

UTC time: 2025-06-30 07:42:59 UTC Local time: —

About this earthquake

On June 30, 2025 at 07:42 UTC, a magnitude M1.2 earthquake occurred near 4 km S of Sierraville, California (United States). With a focal depth of about 9 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 189 earthquakes, the strongest at M3.1.

Details

Magnitude
M1.2
Depth
9.2 km
UTC time
2025-06-30 07:42:59 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
39.55020, -120.35900
Temperature
14.2°C

Map

Depth profile

Depth profile Depth: 9.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9.2 km
Shallow
9.2 km
9.2 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

  • Soda Lakes
    Distance: 127 km ·Maar(s) ·Elevation: 1'251 m ·United States
  • Lassen Volcanic Center
    Distance: 143 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Mono Lake Volcanic Field
    Distance: 207 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Clear Lake Volcanic Field
    Distance: 217 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mono-Inyo Craters
    Distance: 226 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 243 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·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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