From Brian Keene, the author of the rather apocalyptic zombie novels,
THE RISING and
THE CITY OF THE DEAD, comes something along those lines, but with a Lovcraftian twist.
"One day the rain just didn't stop. As the flood waters rose and coastal cities and towns just disappeared, some people believed it was the end of the world. Maybe they were right. But the water wasn't the worsst part. Even more terrifying was what the rains drove up from beneath the earth-unimaginable creatures, writhing burrowing, ...and devouring all in thier path. What hope does a devastated mankind have against...The Conqueror Worms. "
Check out Keene's site where you order this ,and even chew the fat with the bloke himself over on his message boards.
http://www.briankeene.com/