Volcano Project 1 Research Paper Example | Topics and Well Written Essays - 750 words

Volcano Project 1 - Research Paper Example ritish navigator, was the first person to observe the eruptions of ash coming from the Mount Yasur in the year 1774 which attracted him and helped him discover the Tanna Island. Mount Yasur is believed to be a holy place by the inhabitants who thought that the John Frum and his members have been residing there. John Frum was a person who told the natives that the Americans will bring in wealth if they all agree to follow him. It is also called as the Lighthouse of the Pacific as it has been showing continuous activity for so many years (Decker. 1991). The area around the Mount Yasur is highly deprived of vegetation and it has a crater which is almost circular having a diameter of about 400 meters. The eruptions from it have been continuous for the last eight hundred years. Mount Yasur has shown typical eruptions of the strombolian type which are of low level but are frequently regular & the lava quickly cools down and turns into black color before coming down to the earth. The eruptions are caused by the movement of the Indo-Australian plates towards the east which are then subducted under by the movement of the Pacific Plates towards the west. Mount Yasur is 361 meters or 1,184 feet above the sea level and it is a type of a strato volcano. A strato volcano is the one in which the eruption occur rather periodically and the mount has a cone and its walls are made up of the layers of lava continuously being deposited. As the Mount Yasur erupts periodically for hours, the government has issued certain levels of access which depend u pon the height of the eruptions. The access to the c rater is allowed only in the low level activity and is designated as Level-0.even in Level-1, during the normal activity the access to the crater is permitted. The permission to the summit is closed when severe activity takes place that is Level-3. Also large smoke and ash is erupted and lava bombs are projected to hundreds of meters, and loud explosions can be heard. When the