Volcanic explosive eruptions are follow by tremors that last hours or weeks. Scientists has frequently observed these tremors before the volcanic eruption. These explanations depends on the vent or pipe in which the lava passes, or before the gas erupt magma. The charactersists varies from volcano to volcano but it is said that an active volcanic is impossible to determine. Mark Jellinek an professor of UBC Department of Earth and Ocean Sciences said that "All volcanoes feature a viscous column of dense magma surrounded by a compressible and permeable sheath of magma, composed mostly of stretched gas bubbles." Some forecasters see tremors as an important or somewhat mystery, that is observed in a important explosive eruption. Although it has become tricky over the past decade, in understanding the process while underlying the origin evolution of eruption the predictive power is said to be danger to humans.1. Tremors have been felt in different parts of the world, is this because of a volcano or could it be something else?
2. What is the magma in a volcano?
Science Daily. Oscillating "Plug" of Magma Causes Tremors That Forecast Volcanic Eruptions.
February 23, 2011.
http://www.sciencedaily.com/.
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