Alright I really think I NEED to post here since several of these are referring to the tech model. But first for somethings you forgot.
Floods also deposit soil so farming after a floods will be better.
Volcanoes can cause earthquakes and landslides (also it shouldn't be too hard to add avalaches for snowy regions like Alps.
You should also have cyclical fires like yellowstone.
So i guess we're not using greenhouse effects?
One water hazard I just remembered that is quite important are icebergs.
Now for the tech stuff.
Meteorology could be a basic tech.
I think Tsunami will be the only name for well Tsunamis because Tidal Wave isn't very accuract and many people over in the west call them Tsunamis also.