Concord, CA (ZIP 94520) has a moderate disaster history with 47 recorded events. These include 36 earthquakes and 11 wildfires.
The dominant hazard type for Concord is earthquakes, with 36 recorded events making up 77% of the area's disaster history. The most recent recorded earthquake occurred on May 30, 2025.
There have been 11 recorded wildfires in this area, representing 23% of all disaster events. The most recent recorded wildfire occurred on Jul 31, 2024.
Explore disaster history for adjacent areas
Based on federal and state records, ZIP code 94520 has experienced 47 natural disaster events. The hazard types affecting this area include earthquakes (36 events) and wildfires (11 events). The primary hazard is earthquakes, which account for 77% of all recorded events.
Earthquakes are the most frequently recorded hazard in Concord, CA, with 36 events documented.
The most damaging natural disaster on record for ZIP code 94520 was M3.1 Earthquake, which occurred on May 30, 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 →