Government records show 638 natural disaster events affecting the Adelaide, CA area (ZIP 93446) — a notably active disaster history. These include 549 earthquakes, 87 wildfires, and 1 flood. These events have resulted in 1 recorded death and 1 injury.
Earthquakes represent the most common natural hazard in this area, accounting for 86% of all recorded events (549 total). Of these, 2 (0%) 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 Dec 12, 2025.
Wildfires account for 14% of the disaster record here, with 87 events documented. Of these, 4 (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 Oct 9, 2023.
Adelaide has experienced 1 flood on record. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for flood-related events here is 4/5 (severe). 1 fatality has been attributed to floods in this area. The most recent recorded flood occurred on Jan 9, 2023.
Adelaide has experienced 1 hailstorm on record. The most recent recorded hailstorm occurred on Mar 22, 2017.
The most significant disaster event on record for Adelaide was Flash Flood on Jan 9, 2023 and resulted in 1 death.
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Based on federal and state records, ZIP code 93446 has experienced 638 natural disaster events. The hazard types affecting this area include earthquakes (549 events), wildfires (87 events), flood (1 event), and hailstorm (1 event). The primary hazard is earthquakes, which account for 86% of all recorded events.
Earthquakes are the most frequently recorded hazard in Adelaide, CA, with 549 events documented.
Yes, Adelaide (ZIP 93446) has 1 recorded flood event. The most recent flood on record occurred on Jan 9, 2023.
The most damaging natural disaster on record for ZIP code 93446 was Flash Flood, which occurred on Jan 9, 2023. It resulted in 1 reported fatality. It was rated at severity level 4/5.
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 →