Location: 19 km WSW of Maricalom, Philippines Period: 11 Jul 2011 20:52:32 - 12 Jul 2011 14:16:47 (17 hours 24 minutes) Volcanoes in 100km radius: None Earthquakes: 28 1 swarms found nearby. 2011 PS20110711.2(9.7km) 11 Jul 12 hours 9 earthquakes