I've worked on California problems that make use of uplifted marine terraces. During interglacial times like today, you get a smooth surface eroded into the rock at the coast (often below a beach, so you see how smooth at places like Isla Vista next to UCSB after storms move the sand). Then, you have an ice age, the sea retreats, thrust earthquakes uplift the previous smooth surface, and by the time the sea level rises again, if near the same level you cut a new surface. In places you get "flights" of these terraces, the oldest being highest (near Santa Cruz City, Palos Verdes Hills, etc etc).

There is a prominent uplifted terraces in many places in California that is extrapolated to be the oxygen isotopic stage 11, or about 400,000 years. From scientifc core records from the world's oceans, it is known that this interglacial was especially long and strong.

For tectonic problems it is good to know the global level of this and other interglacials. There were marine deposits at 23 m elevation that have been removed (by quarrying?)in Bermuda. There still are some at about 18 m elevation. I guess Bermuda is not uplifting. So, it was thought by some that the global sea level must have been +23 m, which would have required melting all of Greenland, West Antarctica, and a portion of East Antarctica.

The alternate hypothesis, which may now be the prefered hypothesis, is that a giant Canary Islands collapse about that age (maybe a little older) caused a giant Atlantic tsunami and resulted in those and other marine deposits around the Atlantic.

My house is at 20 to 22 m elevation and I would just as soon we not get another collapse like that.

Chris