I lived on the Big Island for four years. I Lurve Hawaii. You don't need electricity, you need food and water. So buy some now while there's still electricity to run the cash registers. Stay away from the windows, and follow the locals when people start running. [spoiler]Not only do they already know where to go, they always wear dem slippers, so you know it'll be a pretty chill walk to get to safety.[/spoiler]