Here is a concise original summary based on the information published by the source. Massive ash plume rises after volcano blast in Philippines — Photos USA TodayMayon blast forces evacuation in Albay Inquirer.netPhilippines raises alert level at Mayon volcano ReutersModerately explosive eruption occurs in Mayon Philstar.comMayon eruption sends ash skyward; volcano alert level raised ABS-CBN For the full context and any later updates, use the original source link.