Here in So.Cal,Tsumami Science is very easy to see.Climb/hike any local mountain of your choice that surrounds the L.A. Basin,scratch around in the dirt a little,"Wow,looky here,Seashells,trylobytes,etc. & I'm way up here on Mt.Wilson a couple thousand feet up this slope,Man that had to be a Huge Tsunami,way back when!Doesn't mean it can't happen again,It's not called a Basin for not,that's for sure!