[oldcomputerguy]

"1700 ft tall in an Alaska Bay directly across from a earthquake induced mountain collapse."

This was purportedly caused by a landslide event i.e. a slosh. Undersea events cannot cause waves this high.

[monday]

"This was purportedly caused by a landslide event i.e. a slosh. Undersea events cannot cause waves this high."

I think that depends on the size of the undersea event. Incidentally this "slosh" is what would happen if the 20 mile chunk of Las Palmas were to let go in the Atlantic. Many experts think it, (the Las Palmas Volcano) couldn't cause tsunamis either.

I think what is possible depends on which expert you talk to. I suspect almost anything is 'possible' under the right circumstances.