Falling boulders smashing through homes and landing on streets are an ongoing threat in "at risk areas" on Oahu. Palolo resident Caroline Sasaki recently had a five-foot rock crash through
“We’ve been in this position before with boulders falling from a hillside in Kalihi Valley several times during a 10-year period,” said State Representative John Mizuno (D-29 Kalihi Valley, Kamehameha Heights, portion of Lower Kalihi) in a news release. “Unfortunately, much of the rockslides or boulders coming down are both related to the rainy weather and the location, usually along a hillside which naturally has a gravitational pull once the surrounding soil turns to mud.”