With 345 documented natural disaster events, ZIP code 95140 in Mount Hamilton, CA has a substantial history of natural hazard activity. These include 315 earthquakes, 25 wildfires, and 3 severe wind events. Total documented property damage amounts to $3.3M. A total of 44 injuries have been reported across all events.
Earthquakes represent the most common natural hazard in this area, accounting for 91% of all recorded events (315 total). Of these, 5 (2%) 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 Nov 19, 2025.
There have been 25 recorded wildfires in this area, representing 7% of all disaster events. The most recent recorded wildfire occurred on Jan 2, 2019.
Mount Hamilton has experienced 3 severe wind events on record. Wind-related events have caused a combined $1M in documented property damage. The most recent recorded severe wind event occurred on Dec 7, 2004.
Mount Hamilton 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 5/5 (extreme). Flood-related events have caused a combined $2.3M in documented property damage. The most recent recorded flood occurred on May 8, 2005.
Mount Hamilton has experienced 1 extreme heat event on record. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for heat-related events here is 5/5 (extreme). The most recent recorded extreme heat event occurred on Jun 14, 2000.
The most significant disaster event on record for Mount Hamilton was Flood on May 8, 2005, which caused $2.3M in property damage. Another major event was 78 mph High Wind (Nov 24, 2001), causing $1M in damages.
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Based on federal and state records, ZIP code 95140 has experienced 345 natural disaster events. The hazard types affecting this area include earthquakes (315 events), wildfires (25 events), severe wind events (3 events), flood (1 event), and extreme heat event (1 event). The primary hazard is earthquakes, which account for 91% of all recorded events.
Earthquakes are the most frequently recorded hazard in Mount Hamilton, CA, with 315 events documented.
Yes, Mount Hamilton (ZIP 95140) has 1 recorded flood event. These floods have caused $2.3M in total property damage. The most recent flood on record occurred on May 8, 2005.
The most damaging natural disaster on record for ZIP code 95140 was Flood, which occurred on May 8, 2005. This event caused $2.3M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $3.3M in property damage in the Mount Hamilton, CA area (ZIP 95140). 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 →