According to PHIVOLCS, the epicenter of the earthquake is located 18 kilometres (11 mi) northeast of Castillejos, Zambales. PHIVOLCS originally records the earthquake, which is tectonic in origin, at magnitude 5.7, but later upgrades it to 6.1. (GMA News)
The United States demands that all countries cease purchasing oil from Iran by May 1 or face sanctions, in a move aimed at reducing Iran's income. (Reuters)