Chatsworth, CA (ZIP 91311) sits in one of the more disaster-active areas in the region, with 690 natural disaster events on record. These include 505 earthquakes, 183 wildfires, and 2 hailstorms.
With 505 recorded incidents (73% of all events), earthquakes are the leading natural hazard for this ZIP code. Of these, 11 (2%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for seismic events here is 5/5 (extreme). The most recent recorded earthquake occurred on Feb 14, 2022.
Wildfires account for 27% of the disaster record here, with 183 events documented. Of these, 10 (5%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for wildfire-related events here is 4/5 (severe). The most recent recorded wildfire occurred on Feb 4, 2025.
Chatsworth has experienced 2 hailstorms on record. The most recent recorded hailstorm occurred on Mar 7, 2024.
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Based on federal and state records, ZIP code 91311 has experienced 690 natural disaster events. The hazard types affecting this area include earthquakes (505 events), wildfires (183 events), and hailstorms (2 events). The primary hazard is earthquakes, which account for 73% of all recorded events.
Earthquakes are the most frequently recorded hazard in Chatsworth, CA, with 505 events documented.
The most damaging natural disaster on record for ZIP code 91311 was Wildfire: KENNETH (999 acres), which occurred on Feb 4, 2025. It was rated at severity level 2/5.
Data sourced from FEMA (disaster declarations, NFIP flood claims), NOAA Storm Events Database, USGS Earthquake Hazards Program, and NIFC wildfire records. Historical coverage varies by source, with most records beginning in the 1950s–1970s. Full methodology →