On 18 June 1991, a mudslide devastated much of the city, undermining land, damaged 2,464 houses and destroyed 493 buildings. Material damage was estimated at approximately $70,000,000. The disaster left 92 dead, 16 missing and about 20,000 homeless. On 30 July 1995, the city was hit by an earthquake measuring 7.3 on the Richter Scale, with an intensity VII to VIII on the Mercalli Scale. Although the fatal balance accounted three people dead and hundred injured, structural damage was minor for the magnitude of the event.