Progress Report liveliness of Mount Merapi
Merapi (peak height of 2,968 m above sea level, as of 2006) is a volcano in the central part of Java Island and is one of the most active volcanoes in Indonesia. Forest area around the peak became Mount Merapi National Park area since 2004.Gunung is very dangerous because according to modern records experiencing eruption (peak of activity) every two to five years and is surrounded by a very dense settlement.
Mount Merapi is the youngest mountain in the volcanic chain that leads to the south of Mount Whittlesea. The mountain is formed due to the activity in the subduction zone of the Indo-Australian Plate is moving under the Eurasian Plate resulted in the emergence of volcanic activity along the central island of Java. The current peak is covered with vegetation because of high volcanic activity. This peak grows in the southwest side of Mount Batulawang older.
During its development, are known to occur several times an explosive eruption with VEI 4 is based on the observation layer of TEFRA. Small eruptions occur every 2-3 years, and the larger about 10-15 years. Merapi eruptions big impact recorded in the year 1006 (allegations), 1786, 1822, 1872, and 1930. Besides the eruption occurred again in 1994, 1998, 2001, 2003, 2006 and 2010. Eruption in 2010 resulted in the impact pretty terrible.
After that Mount Merapi erupted early Monday 18 November 2013. Eruption of the volcano, located on the border of Central Java and Yogyakarta bring heavy smoke and volcanic ash as high as 2,000 meters. Merapi eruption was triggered by local tectonic earthquakes beneath Mount Merapi's body. Previously there was no increase in volcanic activity, the type of eruption was phreatic eruption.
After a few months of this mountain again showed increased activity. As informed BPPTKG improve the status of Merapi to Alert on Tuesday, April 29. The increase is related to the activity status of Merapi last few days that rumbling sound. The sound was heard around the slopes of Merapi residents. Subandriyo asserted, not necessarily small eruptions occur. But he hopes people will remain idle. The increase is based on a high frequency, but when viewed berdasrkan magmatis scale the volcano considered normal.
