When I lived there, it was pretty much taken for granted that certain areas on the Big Island would always be in the way of lava flows following their usual paths. Lava flows weren't a rare event at all on the Big Island, and were a great tourist attraction. The only people who bought houses in those particular subdivisions (at bargain prices) were those from the Mainland who hadn't done their homework. I don't know, but would imagine, that the latest lava flow is in that same general area?