May 12, 2008, 14:28 local time, a 8.0 Richter scale earthquake in Wenchuan county, Sichuan province, China took 69,000 lives, left 18,000 people missing and 370,000 injured. direct economic cost of (Zhang 2014, Cui 2011). resultant geohazards include rock avalanches and debris flows and the formation of earthquake lakes. direct economic cost=150bUSD (Cui, 2011)