Sabtu, 05 Maret 2011
Kamis, 23 Desember 2010
Rabu, 22 Desember 2010
Merapi is one of an active volcano located in Indonesia or in the world. Peak height 2968 m. Located right on the border of Yogyakarta and Central Java.
The name Mount Merapi has been quite popular in the ears of the people of Indonesia. Something related to the existence of Mount Merapi is often associated with things smelling mystery, including the existence of supernatural beings rulers and inhabitants of Mount Merapi. It is no exaggeration, because the investigation results prove that the local residents and authorities believe that Mount Merapi is there.
In 2010 Merapi experienced a very large eruption of the last 100 years. The first eruption occurred at around 17:02 pm on 26 October. At least going up to three times the eruption. Material spewing volcanic eruptions as high as approximately 1.5 km and is accompanied by the release of heat clouds which swept Kaliadem, Kepuharjo Village, District Cangkringan. In the first eruption was at least taken the lives of as many as 44 people.
Explosive eruptions preceded a major eruption on the morning of Thursday, November 4, 2010, resulting in column 4 km-high clouds and bursts of hot clouds in different directions at the foot of Merapi. Furthermore, since about three o'clock noon eruption that never stopped until the evening and reached its peak in the early hours Friday, November 5, 2010. Towards midnight, a radius danger to all the places enlarged to 20 km from the summit. Cloud wedhus trash leads to the Cangkringan with a distance 17 km. This eruption sequence and a roar audible to the city of Yogyakarta and surrounding areas. As a result 131 people died and a result of gravel and ash rain blanketed the city yogja and Central Java. Not only that volcanic ash is also up to the west of Java.
As a result of pyroclastic eruption of Mount Merapi on October 26, 2010 and November 5 of 2010 reached 168 people. And injured victims mencapi approximately 181 people.
Kamis, 21 Oktober 2010
Rabu, 29 September 2010
TSUNAMI
TSUNAMI
Tsunami comes from the word Tsu and Nami = Port = Wave. Being part of the world languages, after the big earthquake June 15, 1896, which caused a large tsunami struck the port city of Sanriku (Japan) and killed 22,000 people and damage to beaches along 280 km east of Honshu.
The most common cause is an undersea earthquake. An earthquake that is too small to create a tsunami by itself may trigger an undersea landslide quite capable of generating a tsunami. Tsunamis can be generated when the sea floor abruptly deforms and vertically displaces the overlying water. Such large vertical movements of the earth's crust can occur at plate boundaries. Sub-marine landslides; which are sometimes triggered by large earthquakes; as well as collapses of volcanic edifices, may also disturb the overlying water column as sediments and are redistributed across the sea floor. Similarly, a violent submarine volcanic eruption can uplift the water column and form a tsunami. Although often referred to as 'tidal waves', a tsunami does not look like the popular impression of normal wave only much bigger. In addition, the tsunami caused by long-period ocean waves generated by impulsive disturbances undersea.