1. Figure 1: Map of the northern Cascadia subduction zone showing the distribution of earthquakes in the subducting Juan de Fuca plate and the locations of seismic cross-sections. Green dashed line ...

Geologist Robert Yeats, author of 'Earthquake Time Bombs', has highlighted the risks associated with the presence of several large US cities in the Pacific Northwest's Cascadia subduction zone.

This earthquake comes just hours after a 2.8 magnitude struck in Bremerton early on Thursday morning. The initial shake map from the Pacific ... This is called the Cascadia Subduction Zone.