BOISE, Idaho -

A 33-year-old Boise man who pleaded guilty to having bomb-making materials in the crawlspace of his house has been sentenced to 13 to 25 years in prison.

Joshua Finch told investigators he believed an electromagnetic pulse was going to knock out all of the electronics in the country and he was preparing for the anarchy he believed would follow. He said he didn't intend to hurt anyone.

But District Judge Thomas Neville said having more than 100 pounds of explosives in a crawl space underneath his children's bedrooms wasn't consistent with that claim.

Finch pleaded guilty in May to aggravated assault, possession of destructive devices or bombs, two counts of injury to a child and unlawful possession of a firearm by a felon.

His girlfriend alerted authorities to the stash last November.