My commentary :
Tsunamis and earthquakes are internal movements of the earth that are almost always destrcutivos to humans . Formerly there was no equipment to detect earthquakes and tsunamis today if there.Best to avoid deaths in these phenomena is evacuate all people to leave there and warn before it happens
In 2004 there was a tsunami in the ocean indicated caused by an undersea earthquake 30km from the surface which lasted about 10 minutes . There were many deaths in different countries of the Indian ocean coast earthquake was of magnitude 9.1 .
I think humans are ultimately more prepared for these phenomena