Hot water is spewing out of the Cascadia subduction zone. Is that a sign of new danger?

Nope.

A paper published on January 25th identified warm water coming out of cracks in the seafloor. The source of the water? Fluids on the Cascadia megathrust - the big subduction zone fault that lies offshore the coast of Washington.

View of bubbles rising from the seafloor, associated with fluids emitted from the Cascadia megathrust. Source: Philip, B.T., S…