 Complete the following phrase:  In 2007, the U.S. Geological Survey USGS, in cooperation with Panamas Science, Technology and Innovation Secretariat SENACYT and the U.S. Agency for International Development USAID, published a study on different aspects of Volcán Barú. The 33-page report outlined potential hazard areas, rock composition, and areas affected by previous eruptions; there is evidence that during the last eruption, which occurred in the 16th century, the debris avalanche deposits covered a volume of 2030 km3, reaching as far as the Pacific Ocean the largest documented in Central America and nearly 10 times the area covered by the 