Workload Profile. The performance of the system is dependent on how the load is delivered to the system. For example it is easier to achieve faster response times for a system that receive an regular arrival of work throughout the day compared to one that receive burst of traffic.
The January 17 2002 eruption of Nyiragongo volcano started suddenly at 8:25 local time. The eruption effectively involved a reopening and extension of the 1977 fault system and a renewed drainage of the lava lake, followed by the eruption of some magma from a deeper source.
The 1991 eruption of Pinatubo volcano in the Philippines created a new caldera with an average diameter of 2.5 km. Caldera collapse, which lowered the height of the volcano about 300 m, occurred following the ejection of nearly 10 cu km of tephra in one of the world's largest eruptions of the 20th century.ahars have occurred during every rainy season since the eruption of 15 June 1991. Pinatubo's last reported lahars were triggered by the heavy rainfalls of July 1995, when 30 x 10 6 m 3 of debris, deposited over a 12 km 2 area, forced mass evacuation of Porac and Bacalor (BGVN 20:07).