I have linked Revelation 12 below.

My question is that of the river that the dragon sends to drown the woman (Israel). Is this river a tsunami wave? It could very well be. All this speculation of a mega-tsunami has resulted in my looking at scripture with very different eyes. Read Revelation 12 with this threat in mind. It changes everything. Everything!

https://www.biblegateway.com/passage/?search=Revelation%2012&version=NIV