A collapsed hydroelectric plant is seen after an earthquake in Rio Cuarto de Grecia, 70 km (43 miles) north of San Jose, January 11, 2009. As rescue workers on Sunday combed through houses collapsed by last week's deadly earthquake, Costa Rican officials feared that unstable ground and daily rains could cause mudslides in the region. A Red Cross official put the death toll at 20, but the number could rise. [Agencies]