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M1.0 Depth: 10.4 km

M1.0 Earthquake near 19 km WSW of Johannesburg, CA (United States)

UTC time: 2025-07-29 08:25:09 UTC Local time: —

About this earthquake

On July 29, 2025 at 08:25 UTC, a magnitude M1.0 earthquake occurred near 19 km WSW of Johannesburg, CA (United States). The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 256 earthquakes, the strongest at M4.1.

Details

Magnitude
M1.0
Depth
10.4 km
UTC time
2025-07-29 08:25:09 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
35.31750, -117.82867
Temperature
22.7°C

Map

Depth profile

Depth profile Depth: 10.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10.4 km
Shallow
10.4 km
10.4 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

  • Ubehebe Craters
    Distance: 192 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 279 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 297 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: 317 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Uinkaret Field
    Distance: 440 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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