[bert]

-——upthrusts caused by subduction quakes.-——

Or alternatively, as the subduction movement occurs, the dynamic force is transmitted upward through the rock and is felt as a quake.

[SatinDoll]

Uh, I don’t know about that scenario.

Here in the northwest along the coast the subduction earthquake is out at sea where the marine plate is forced under the edge of the continental plate.

The coastline has been known historically (drowned forests along the coast) to cause the coastal areas to subside as much as 16 feet.