Tacoma sits directly in the lahar flow path from Mount Rainier — the most dangerous volcano in the United States. The Puyallup River valley running from Rainier through Tacoma to Commencement Bay is a primary lahar corridor. A major eruption or debris avalanche could send volcanic mudflows through densely populated suburban areas between Rainier and Tacoma within hours. The Cascadia Subduction Zone adds megathrust earthquake risk.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
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// Risk Intelligence
| Threat Score | 8 / 10 High |
| Primary Hazard | Earthquake / Volcanic Lahar |
| FEMA Flood Zone | Zone X (Seismic High Risk) |
| County FEMA Declarations | 45 |
| Last Major Event | Nisqually Earthquake (2001) |
// Emergency Information
| Emergency Phone | (253) 591-5000 |
| Evacuation Routes | I-5 North, I-5 South, SR-512 East, SR-7 South |
| Elevation | 170 ft above sea level |
// County Risk Profile
// Other Cities in Pierce County WA
// Nearby Infrastructure Risks
Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.
Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.