Which active faults threaten Los Angeles?

The fault systems associated with Los Angeles are named in the hub header and drawn on the map alongside recorded seismicity. Proximity alone does not rank hazard: rupture length, slip rate and the time elapsed since the last event all matter, so the page shows the traces and the observed activity rather than a single ranking.

Who is the emergency service for Los Angeles?

The civil protection agency responsible for Los Angeles, with its emergency number, is shown on this page. Call it for any life-threatening situation; for official damage reports and aftershock bulletins, follow the national seismological agency listed among our data sources.

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Back to Regions List UNITED STATES

Los Angeles

The San Andreas passes some 60 km northeast of downtown, but the faults that actually shook the city - Northridge in 1994, Whittier Narrows in 1987 - are blind thrusts buried under the basin itself, which is why moderate magnitudes here still produce severe local damage.

Danger Level (72h)

72-hour composite hazard forecast

Recent Quakes (14d)

Recorded in the selected 14d period

Max Magnitude (14d)

Largest earthquake in the selected 14d period

Tectonic Profile

Seismotectonic hazard assessment, structural exposure & historical context

Associated Faults3

Click to locate on map

Regional PopulationLandScan

Living within 180 km of the city centre

Building VulnerabilityModerate

Mixed construction stock with regional engineering standards

Tectonic Setting

Transform / Strike-Slip

Critical Hazard

Major plate boundary with high strain accumulation

Seismically Stable Period

No significant earthquakes recorded in the selected 14d period.

PAGER GREEN

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Oct 22, 08:35:04 PM

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Seismic Activity

Every recorded earthquake in this area — filter by time range and sort by time or severity.

No earthquake activity data available for this period.

Emergency services

Cal OES / FEMA

911 Official site

Frequently Asked Questions (FAQ)

Verified scientific, operational, and emergency protocols

The event table on this page lists every earthquake recorded inside the felt radius of Los Angeles, newest first, with its distance from the city centre and its magnitude. The top row is therefore the most recent event, and the list updates as soon as a reporting agency publishes a solution.