MANILA, Philippines — A magnitude 4.3 offshore quake struck waters off Iloilo and Guimaras early Wednesday, with state seismologists reporting no expected damage or aftershocks. According to monitoring data from the Philippine Institute of Volcanology and Seismology (Phivolcs), the tectonic quake occurred at 9:21 a.m. Its epicenter is located about 7 kilometers south 30° east