CPAL Paleoseismic Compilation
The Paleoseismology Group at Cascadia Quakes specializes in studying past earthquake events through geological evidence, enhancing our understanding of seismic hazards in the Cascadia Subduction Zone. Our research focuses on analyzing ancient fault lines, sediment layers, and other geological markers to improve predictions of future seismic activity and to inform strategies for earthquake preparedness and risk mitigation.
The map on this page displays CPAL's latest compilation of paleoseismic proxies, represented by distinct symbols and colors. Click on a marker to explore its associated dataset. Use the map controls below to refine the display and focus on your desired dataset (click on ▶ Show/Hide Dataset & Plot Controls to toggle the controls). As you zoom in and encounter overlapping markers, right-click near the marker cluster to spread out the markers. Right-click again to return the markers to their original positions.
Additional controls above the map include:
- View Home – Resets the map zoom and viewport to the default setting.
- Clear Highlight – Removes highlights from all previously highlighted markers.
- Group Markers – Returns markers that have been spread out back to their original positions (similar to a second right-click).
- Spread Offset – Adjusts the distance between spread-out markers, allowing you to fine-tune based on zoom level.
- Select a Site (dropdown) – Zooms in to a selected site from the list.