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M1.6 Depth: 0.5 km

M1.6 Earthquake near 4 km NW of San Luis Obispo, CA (United States)

UTC time: 2025-07-28 22:03:33 UTC Local time: —

About this earthquake

On July 28, 2025 at 22:03 UTC, a magnitude M1.6 earthquake occurred near 4 km NW of San Luis Obispo, CA (United States). The hypocenter lay relatively close to the surface at around 0 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 257 earthquakes, the strongest at M4.1.

Details

Magnitude
M1.6
Depth
0.5 km
UTC time
2025-07-28 22:03:33 UTC
Local time
—
Country
United States
City
California
Source
usgs
Coordinates
35.30017, -120.69583
Temperature
26.4°C

Map

Depth profile

Depth profile Depth: 0.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 0.5 km
Shallow
0.5 km
0.5 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: 299 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 316 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 335 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Ubehebe Craters
    Distance: 349 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Clear Lake Volcanic Field
    Distance: 448 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Soda Lakes
    Distance: 496 km ·Maar(s) ·Elevation: 1'251 m ·United States

Historic earthquake map · United States

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Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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