"We've been kind of worried, but we're just hoping nothing like this would happen. We never thought it would happen to us on this mountain," Kugiyama said. "Thank God nobody got hurt."

Kamehameha Schools owns this hillside below Wilhelmina Rise where the boulder came from. A schools' spokesman said they sent a team to investigate and are evaluating the situation.

Kamehameha Schools also owns the land above Lalea in Hawaii Kai, where falling rocks led to the evacuation of some homes this past November.

The Kugiyamas said they're not going to let their kids play in front of the house anymore. Higa said she's considering moving all together.