El Misti  Summit Elevation:  5822 m  Latitude:                  16.294°S  Longitude:               71.409°W El Misti, Peru's most well-known volcano, is a  symmetrical andesitic stratovolcano with nested  summit craters that towers above the city of Arequipa.  The modern symmetrical cone, constructed within a  small 1.5 x 2 km wide summit caldera that formed  between about 13,700 and 11,300 years ago, caps older  Pleistocene volcanoes that underwent caldera collapse  about 50,000 years ago. A large scoria cone has grown  with the 830-m-wide outer summit crater of El Misti.  At least 20 tephra-fall deposits and numerous  pyroclastic-flow deposits have been documented  during the past 50,000 years, including a pyroclastic  flow that traveled 12 km to the south about 2000 years  ago. El Misti's most recent activity has been dominantly pyroclastic, and strong winds have formed a  parabolic dune field of volcanic ash extending up to 20 km downwind. An eruption in the 15th century  affected Inca inhabitants living near the volcano. Some reports of historical eruptions may represent  increased fumarolic activity. (Global Volcanism Program)  Panoramen HOME click on pictures click on panorama