A Dacitic Lava Dome Complex – Santiaguito Volcano Eruption
Posted by thanate in News, Volcanic Eruptions on 28. Apr, 2010 | 0 Comments
An eruption at Guatemala’s Santiaguito volcano has sent a plume of ash 27,300 feet above sea level with 4 faces of crater collapses and pyroclastic flows generated within the gullies on the southern flank. Calamity response agency spokesman David De Leon says the volcano has calmed since Monday’s big burst – though it is still [...]
Yushu Earthquake Kills Thousands In Qinghai
Posted by thanate in Earthquakes, News on 26. Apr, 2010 | 0 Comments
Yushu earthquake struck on April 14, 2010. It originated in Yushu, Qinghai, China, at 7:49 am local time. According to the Xinhua News Agency, 2,220 people have been confirmed dead, 70 missing, and 12,135 injured of which 1,434 are severely injured. The epicenter was located in Rima village, Upper Laxiu township of Yushu County, in [...]
Volcanic Ash
Posted by thanate in Volcanic Eruptions on 23. Apr, 2010 | 0 Comments
Volcanic ash consists of small tephra, which are bits of pulverized rock and glass created by volcanic eruptions, less than 2 millimetres in diameter. There are three mechanisms of volcanic ash formation: gas release under decompression causing magmatic eruptions; thermal contraction from chilling on contact with water causing phreatomagmatic eruptions, and ejection of entrained particles [...]
Earthquake
Posted by thanate in Earthquakes on 23. Apr, 2010 | 0 Comments
An Earthquake is a sudden shake of the Earth’s crust.The vibrations may vary in magnitude. The underground point of origin of the earthquake is called the “focus”. The point directly above the focus on the surface is called the”epicenter”. Photo: IFRC Earthquakes by themselves rarely kill people or wildlife. It is usually the secondary events [...]
