Figure 2

Tungurahua volcano, location of Baños city and other communities and paths of the 2006 pyroclastic flows. a: Modified aerial photograph of Tungurahua volcano taken before the 2006 pyroclastic –flow forming eruptions. The tourist city of Baños is located at the northern foot of the cone, and partially on the fan of the Rio Vascún. The extreme relief between the summit and Baños is 3200 meters over a 7 km distance. Photo courtesy of Jorge Juan Anhalzer- Quito. b: Digital elevation map of the whole volcano showing all major quebradas on the north, west and SW flanks, pyroclastic flow paths of 2006 and post 2006, identified as pdcs in the legend, and ashcloud surge (ACS) of the same eruption, and main town and rivers.