Throw your family crest into the waves and you'll make lots of ripples. There will probably also be repercussions with your family because those things are important and you really shouldn't be tossing them into the sea's waves.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
The cabinet minister’s careless remark created a huge stir.