A 5.6 magnitude earthquake shook the island at 10:26 a.m., centered about 47.2 miles east-southeast of Inarajan, at a depth of 9.7 miles, and a 5.1 magnitude earthquake shook the island at 12:24 p.m., centered about 49.7 miles southeast of Inarajan, at a depth of 22.7 miles, the USGS stated.