QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/official19060418131226300_12
USGS official19060418131226300_12

18 Apr 1906, 13:12

The 1906 San Francisco, California Earthquake

A magnitude 7.9 mw earthquake at 11.7 km depth.

Depth11.7 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated29 August 2026Latest timestamp stored in this record

Published location

Where is The 1906 San Francisco, California Earthquake?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

37.750000, -122.550000

Open the interactive map ↗

Map data © OpenStreetMap contributors

What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

Need a current safety answer?

Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.

Open the USGS event →

Continue exploring

Nearby events with a similar magnitude

M 7.41

123 km W of Big Lagoon, California

M 7.2

The 1980 Eureka, California Earthquake

M 7.2

The 1992 Petrolia, California Earthquake

M 7.2

153 km W of Big Lagoon, California

M 7.12

The 1923 Humboldt County, California Earthquake

M 7.1

121 km W of Ferndale, California

Catalog fields and provenance
Event ID
official19060418131226300_12
Coordinates
37.75, -122.55
Network
official
Significance
960