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M1.5 Depth: 1.0 km

M1.5 Earthquake near San Luis Obispo County, California (United States)

UTC time: 2026-08-28 02:46:49 UTC Local time: —

About this earthquake

On August 28, 2026 at 02:46 UTC, a magnitude M1.5 earthquake occurred near San Luis Obispo County, California (United States). With a focal depth of about 1 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 192 earthquakes, the strongest at M4.4.

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Depth profile

Depth profile Depth: 1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1 km
Shallow
1 km
1 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

  • Mammoth Mountain
    Distance: 283 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 301 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 320 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Ubehebe Craters
    Distance: 327 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Clear Lake Volcanic Field
    Distance: 451 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Soda Lakes
    Distance: 484 km ·Maar(s) ·Elevation: 1'251 m ·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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