Question

What is the cause of tsunami? (i) seismic movement (ii) ocean tide iii) oceanic movement (iv) oceanic upheaval​

Answer 1

Answer:

seismic movement is the main cause of tsunami.

It can also be caused by underwater volcano eruption

Answer 2

Answer:

Seismic movement

Explanation:

The term seismic sea wave is also used to refer to the phenomenon, because the waves most often are generated by seismic activity such as earthquakes. Prior to the rise of the use of the term tsunami in English, scientists generally encouraged the use of the term seismic sea wave rather than tidal wave