Billings, Montana Earthquake Risk Score
Billings, Montana has a 2.1 / 10 earthquake risk score from PerilScore v4 data.
Computed from decades of public weather data using physics-based probability modeling.
- Risk Score (0-10)
- 2.1
- Historical Events
- No data
- Avg Return Period
- No data
- Data Confidence
- 95%
in the record
years between events
Billings, Montana has a 2.1 / 10 earthquake risk score, which falls in the moderate band and is in the 50th percentile among scored local areas in this model. The score was snapshotted on 2026-06-17 with 95% model confidence.
What drives this score here?
fault proximity is the largest V4 contributor from registered local hazard drivers. For this location, the score card also highlights these model signals:
- Site PGA: 0.20 g
- 2% / 50 yr PGA: 0.13 g
- Fault distance: 158.2 km
- M4+ events: 0
The strongest component metrics in the snapshot are:
- Fault Proximity: model component 0.106. The raw value is 158.2.
- NSHM Site Adjusted PGA: model component 0.052. The raw value is 0.20 g.
- 2Pct 50Yr PGA: model component 0.023. The raw value is 0.13 g.
For earthquake exposure, the useful signals are site-adjusted PGA, design PGA, fault proximity, fault slip rate, and historical seismicity. This snapshot shows site-adjusted PGA at 0.20 g and nearest mapped fault distance at 158.2 km.
How to read the location signal
This page uses the representative local model area around the major city centroid for Billings, Montana. That local model area is roughly 5 square kilometers, so the score is a practical place-level signal for browsing and comparison. The building-level view comes from entering a street address.
Billings is included as a major Census place, which helps readers compare the local score with county and ZIP pages nearby.
The model confidence is high enough for direct local comparison across nearby pages.
The source record for this page is: PerilScore local earthquake local model feature table with NSHM, site amplification, design PGA, and fault proximity drivers
Why building details matter
A street-address score can account for the unique characteristics of a specific building, including age, construction type, roof shape and condition, occupancy, elevation, defensible space, drainage, terrain, and nearby exposure. Those details can change resilience or susceptibility around the same location-level score.
Use this city page when you want a recognizable local reference point for comparing nearby ZIPs and counties. The percentile gives a useful comparison point, while the address-level score handles the building and immediate surroundings.
Use the PerilScore app to enter a street address and see the full property-specific score.
The local score is the starting point
A specific building can perform differently from the surrounding area. The PerilScore street-address check adds building age, construction type, roof details, occupancy, elevation, defensible space, drainage, terrain, and nearby exposure to the earthquake layer shown here.
PerilScoreAbout this earthquake score
What does the earthquake score mean for Billings, Montana?
Why can nearby buildings have different earthquake risk?
How do I get the building-specific score?
Want the full picture for a specific property?
The scores on this site show the representative earthquake layer for a local area. Enter a street address to add building age, construction type, roof details, occupancy, surroundings, and property-level context.