Big Arm, MT (ZIP 59910) has a moderate disaster history with 19 recorded events. These include 10 earthquakes, 6 hailstorms, and 3 wildfires.
The dominant hazard type for Big Arm is earthquakes, with 10 recorded events making up 53% of the area's disaster history. The most recent recorded earthquake occurred on Feb 20, 2017.
Big Arm has experienced 6 hailstorms on record. The most recent recorded hailstorm occurred on Jun 24, 2020.
Big Arm has experienced 3 wildfires 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 wildfire-related events here is 4/5 (severe). The most recent recorded wildfire occurred on Oct 7, 2024.
Explore disaster history for adjacent areas
Based on federal and state records, ZIP code 59910 has experienced 19 natural disaster events. The hazard types affecting this area include earthquakes (10 events), hailstorms (6 events), and wildfires (3 events). The primary hazard is earthquakes, which account for 53% of all recorded events.
Earthquakes are the most frequently recorded hazard in Big Arm, MT, with 10 events documented.
The most damaging natural disaster on record for ZIP code 59910 was Wildfire: SULLIVAN (125 acres), which occurred on Oct 7, 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 →