Services Departments Government


Volcanic eruption

The Pacific Northwest lies on the "Ring of Fire," an area of active volcanic activity surrounding the Pacific Basin. While only Mt. Hood and Mt. St. Helens are known to have had direct effects in the county in the past, any eruption in the Cascades is likely to have transportation and economic impact on Clackamas County indirectly.

The primary volcanic threat to lives and property in Clackamas County is depicted on the projected volcanic hazards map from Mt. Hood.

These hazards can threaten our county from near or distant eruptions and include:

US Geological Survey Cascade Range Current Update

Mount Hood Earthquake Swarm Information

For tips on preparing for volcanic hazards go to: FEMA: Volcano

You can view volcanic activity at Mount Saint Helens at the United States Forest Service volcano cam web site.

Share this page

Disaster Management

Phone number 503-655-8378
Address 2200 Kaen Road
Oregon City, OR 97045

CCENS emergency notifications
Sign up for emergency notifications on your cell phone.

Public Alerts
News and information on service disruptions.