A magnitude-5.0 earthquake and several small aftershocks shook Hawaii's Big Island on Sunday, but there were no reports of injury or damage. The quake struck near Holei Pali beneath the south flank of Kilauea volcano in Hawaii Volcanoes National Park at 4:36 p.m. (6:36 p.m. PST) at a depth of five miles, according to a report from the U.S. Geological Survey. The epicenter was about 25 miles south of Hilo and 220 miles southeast of Honolulu. There was no tsunami threat. About 20 small aftershocks came in the hours that followed, the largest a magnitude-3.1 about 10 minutes after the original quake.