On the night of August 2, 1999, a massive landslide occurred in Cherry Hills subdivision in Antipolo, Rizal province, Philippines that resulted to about 60 deaths and 378 houses buried. The landslide was primarily caused by the heavy rains associated with Typhoon Ising (Olga) and its enhancement of the southwest monsoon. The subdivision became a death trap when its foundations was filled with water and the whole complex slid down the hill on which it was built.