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United States · California

M1.9 Earthquake near San Luis Obispo County, California (United States)

UTC time: 2026-10-28 02:47:52 UTC Local time: —
Magnitude
M1.9
Depth
33.7 km
Source
NCEDC

California · San Luis Obispo County

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About this earthquake

A magnitude M1.9 earthquake was recorded near San Luis Obispo County, California (United States) on October 28, 2026 at 02:47 UTC. With a focal depth of about 34 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 NCEDC and cross-checked across seismological networks. United States: 166 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Depth profile

Depth profile Depth: 33.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 33.7 km
Shallow
33.7 km
33.7 km — deeper 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: 271 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 289 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 309 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Ubehebe Craters
    Distance: 311 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Clear Lake Volcanic Field
    Distance: 452 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Soda Lakes
    Distance: 474 km ·Maar(s) ·Elevation: 1'251 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • San Luis County Regional AirportUnited States · SBP · KSBP
    37.2 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-05

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

California

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 2,447 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

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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