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M1.5 Depth: 6.6 km

M1.5 Earthquake near 15 km WSW of Johannesburg, CA (United States)

UTC time: 2025-12-23 10:38:41 UTC Local time: —

About this earthquake

On December 23, 2025 at 10:38 UTC, a magnitude M1.5 earthquake occurred near 15 km WSW of Johannesburg, CA (United States). With a focal depth of about 7 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: 247 earthquakes were recorded in the past 24 hours, the strongest reaching M5.5.

Details

Magnitude
M1.5
Depth
6.6 km
UTC time
2025-12-23 10:38:41 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
35.34017, -117.79883
Temperature
9.5°C

Map

Depth profile

Depth profile Depth: 6.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 6.6 km
Shallow
6.6 km
6.6 km — shallower than 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

  • Ubehebe Craters
    Distance: 189 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 278 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 295 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Salton Buttes
    Distance: 311 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Mono Lake Volcanic Field
    Distance: 315 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Uinkaret Field
    Distance: 436 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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