Science fiction book about reversal of Earth's rotation?

Question

I'm looking for a science fiction book about the reversal of Earth's rotation. I read it in the 1970s, but it could have been written in the '60s.

I remember that the story was told from viewpoint of newspaper reporter, and started with preparations for the impending reversal - such as teaching children how to survive tidal waves in the Pacific. There were other ecological crises, such as sea worms coming ashore, and earthquakes.

I also remember something about a hollowed out mountain, with pods for each person. Humans who were not protected became wild. The survivors had to change their views on relationships, in order to increase genetic diversity again.

The book ends with the reporter looking at the new configuration of the sky thinking it’s a window into God’s something. Living room or parlor, I can’t remember exactly.

Answer 1

Could be The HAB Theory, by Allan W. Eckert.

Kirkus Reviews says:

HAB is feisty 94-year-old Herbert Allen Boardman, who stages a faked presidential assassination attempt in order to alert humanity to some disturbing facts about the earth's rotation. On his death a crack investigative journalist takes up the crusade; while scientists debate the merits of the theory, the presidents of America and Kenya embark on a crash program to salvage essentials before the Antarctic ice cap topples the planet onto a different axis.