QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/ci134894
USGS ci134894

24 Nov 1987, 01:54

The 1987 Elmore Ranch, California Earthquake

A magnitude 6.2 mw earthquake at 10.9 km depth.

Depth10.9 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated24 February 2024Latest timestamp stored in this record

Published location

Where is The 1987 Elmore Ranch, 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.

33.090000, -115.792000

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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.

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Continue exploring

Nearby events with a similar magnitude

M 6.2

53 km NE of Beatty, Nevada

M 6.2

57 km NE of Beatty, Nevada

M 6.21

3 km SE of San Bernardino, California

M 6.28

The 1906 Imperial Valley, California Earthquake

M 6.3

46 km NNE of Beatty, Nevada

M 6.3

51 km NNE of Beatty, Nevada

Catalog fields and provenance
Event ID
ci134894
Coordinates
33.09, -115.792
Network
ci
Significance
591