Arcata California is home to Cal Poly Humboldt (formerly Humboldt State University) and sits on Humboldt Bay adjacent to Eureka. The community faces extreme earthquake and tsunami risk from the Cascadia Subduction Zone and Mendocino Triple Junction. The extremely isolated location — surrounded by mountains and accessible only by highway — creates self-sufficiency requirements for the community. A major Cascadia earthquake could trigger tsunamis that inundate the low-lying Humboldt Bay communities.
// 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 | 7 / 10 High |
| Primary Hazard | Earthquake / Tsunami / Isolation / University |
| FEMA Flood Zone | High |
| County FEMA Declarations | 7 |
| Last Major Event | 2022 Ferndale Earthquake |
// Emergency Information
| Emergency Phone | 707-822-5953 |
| Evacuation Routes | US-101 CA-36 CA-299 CA-255 |
| Elevation | 23 ft above sea level |
// County Risk Profile
Humboldt County CA
California · Earthquake / Tsunami
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7/10
High Risk