With 232 documented natural disaster events, ZIP code 92377 in Rialto, CA has a substantial history of natural hazard activity. These include 166 earthquakes, 56 wildfires, and 10 floods. Total documented property damage amounts to $513K.
The dominant hazard type for Rialto is earthquakes, with 166 recorded events making up 72% of the area's disaster history. The most recent recorded earthquake occurred on Dec 17, 2025.
Wildfires account for 24% of the disaster record here, with 56 events documented. Of these, 2 (4%) 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 5/5 (extreme). The most recent recorded wildfire occurred on Mar 14, 2023.
Rialto has experienced 10 floods on record. Of these, 5 (50%) 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 $513K in documented property damage. The most recent recorded flood occurred on Nov 29, 2018.
The most significant disaster event on record for Rialto was Flash Flood on Oct 13, 2006, which caused $200K in property damage.
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Based on federal and state records, ZIP code 92377 has experienced 232 natural disaster events. The hazard types affecting this area include earthquakes (166 events), wildfires (56 events), and floods (10 events). The primary hazard is earthquakes, which account for 72% of all recorded events.
Earthquakes are the most frequently recorded hazard in Rialto, CA, with 166 events documented.
Yes, Rialto (ZIP 92377) has 10 recorded flood events. These floods have caused $513K in total property damage. The most recent flood on record occurred on Nov 29, 2018.
The most damaging natural disaster on record for ZIP code 92377 was Flash Flood, which occurred on Oct 13, 2006. This event caused $200K in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $513K in property damage in the Rialto, CA area (ZIP 92377). 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 →