Hi efraimdelacruz. I think its the Mayon eruption on 1814 which killed more than 1200 people . If you are thinking for more dreadful events . Massacre like in Hacienda Luisita which started when farmers goes on strike for that they must received the land that they were promised by the Yellow famil (Aquino) and Massacre in Magindanao accusing the clan Ampatuan
