Government records show 211 natural disaster events affecting the Clayton, CA area (ZIP 94517) — a notably active disaster history. These include 170 earthquakes, 37 wildfires, and 3 floods. Total documented property damage amounts to $44M.
Earthquakes represent the most common natural hazard in this area, accounting for 81% of all recorded events (170 total). Of these, 2 (1%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for seismic events here is 4/5 (severe). The most recent recorded earthquake occurred on Sep 15, 2025.
There have been 37 recorded wildfires in this area, representing 18% of all disaster events. The most recent recorded wildfire occurred on Aug 9, 2019.
Clayton has experienced 3 floods on record. Of these, 2 (67%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for flood-related events here is 5/5 (extreme). Flood-related events have caused a combined $44M in documented property damage. The most recent recorded flood occurred on Dec 2, 2012.
Clayton has experienced 1 tornado on record. Tornado-related events have caused a combined $25K in documented property damage. The most recent recorded tornado occurred on Jan 23, 2010.
The most significant disaster event on record for Clayton was Flood on Jan 1, 2006, which caused $22M in property damage. Another major event was Flood (Dec 31, 2005), causing $22M in damages.
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Based on federal and state records, ZIP code 94517 has experienced 211 natural disaster events. The hazard types affecting this area include earthquakes (170 events), wildfires (37 events), floods (3 events), and tornado (1 event). The primary hazard is earthquakes, which account for 81% of all recorded events.
Earthquakes are the most frequently recorded hazard in Clayton, CA, with 170 events documented.
Yes, Clayton (ZIP 94517) has 3 recorded flood events. These floods have caused $44M in total property damage. The most recent flood on record occurred on Dec 2, 2012.
Clayton has 1 recorded tornado event in the historical record. Total property damage from tornadoes in this area is $25K. The most recent tornado was recorded on Jan 23, 2010.
The most damaging natural disaster on record for ZIP code 94517 was Flood, which occurred on Jan 1, 2006. This event caused $22M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $44M in property damage in the Clayton, CA area (ZIP 94517). This figure is based on historical records from FEMA, NOAA Storm Events Database, and USGS, and covers events from the 1950s through the present. Actual damages may be higher, as not all events have complete damage assessments.
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 →