United States – San Luis Obispo County

This page summarizes earthquakes in San Luis Obispo County (United States). The most recently recorded event was a magnitude M2.1 earthquake near San Simeon on 2026-06-15 13:19:06 UTC. All event lists and map markers are limited to the last 30 days.

About San Luis Obispo County

San Luis Obispo County, officially the County of San Luis Obispo, is a county on the Central Coast of California. As of the 2020 United States census, the population was 282,424. The county seat is San Luis Obispo.

Earthquakes (last 30 days)
10
Max magnitude (last 30 days)
M2.2
Avg magnitude (last 30 days)
M1.79
Avg depth (last 30 days)
6 km
Seismic activity in 2026

In 2026, San Luis Obispo County recorded 64 earthquakes within United States. The average magnitude was M1.69. The strongest event reached M2.8.

By event count in 2026, this region ranks #41 within United States.

Located on the Pacific Plate.

Map (last 30 days)
< 2 2–4 4–5 ≥ 5
Earthquakes in San Luis Obispo County (last 30 days)