Tremor is strongest aftershock so far of the July 27 major quake in Northern Luzon (Eagle News) – A magnitude 5.1 quake shook the province of Abra again early Monday, August 1, about four kilometers northeast of the town of Villaviciosa, according to the Philippine Institute of Volcanology and Seismology (PHIVOLCS) It was felt in Vigan City and other areas of Ilocos Sur, Ilocos Norte and Mountain Province at intensity 5. The quake, of tectonic […]