Environment ❯ Natural Hazards

Seismic Activity

Pacific Ring of Fire Earthquake Preparedness Earthquake Risk Fault Lines Tsunami Risk Tectonic Plates Ring of Fire Earthquake-Prone Regions Risk Management Volcanology Tsunami Warnings Tsunami Alerts Risk Assessment Earthquakes Regional Analysis Tsunamis Coastal Regions Impact of Earthquakes Plate Boundaries Tsunami Risks

New Study Finds Cascadia and San Andreas Quakes Have Often Struck in Tandem

Seafloor cores at the Mendocino Triple Junction reveal stacked turbidites indicating closely timed Cascadia–San Andreas events.

Study Finds Cascadia Megathrust Often Triggers Northern San Andreas in Closely Timed Quakes

Canada Updates Seismic Model After Study Flags Yukon’s Tintina Fault as 7.5-Magnitude Threat

Tintina Fault, Once Dormant, Is Straining Toward a Magnitude 7.5+ Quake