ZIP code 91733, covering South El Monte, CA, has 78 natural disaster events in the historical record. These include 55 earthquakes, 19 wildfires, and 2 hailstorms. A total of 1 injury has been reported across all events.
Earthquakes represent the most common natural hazard in this area, accounting for 71% of all recorded events (55 total). Of these, 2 (4%) 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 19, 2020.
There have been 19 recorded wildfires in this area, representing 24% of all disaster events. The most recent recorded wildfire occurred on Jan 2, 2019.
South El Monte has experienced 2 hailstorms on record. The most recent recorded hailstorm occurred on Mar 15, 2024.
South El Monte has experienced 2 tornadoes on record. The most recent recorded tornado occurred on Mar 22, 2023.
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Based on federal and state records, ZIP code 91733 has experienced 78 natural disaster events. The hazard types affecting this area include earthquakes (55 events), wildfires (19 events), hailstorms (2 events), and tornadoes (2 events). The primary hazard is earthquakes, which account for 71% of all recorded events.
Earthquakes are the most frequently recorded hazard in South El Monte, CA, with 55 events documented.
South El Monte has 2 recorded tornado events in the historical record. The most recent tornado was recorded on Mar 22, 2023.
The most damaging natural disaster on record for ZIP code 91733 was 1" Hail, which occurred on Mar 15, 2024. 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 →