How to Predict a Volcanic Eruption

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How to predict an volcanic eruption Ground Deformation Ground deformation is the change in shape that happens before during or after a volcanic eruption. This happens because the sides of the volcano change shape because the magma in many ways to measure the change of shape of the volcano, like leveling, triangulation and more recently using continuous Global Positioning System (CGPS). It is also possible to use lakes as large tilt meters. Tilt meters measure the tiny degrees of tilt or slope on land. This is one of the oldest methods of knowing when ground deformation was caused because of rising lava. We also use electronic tilt meters, this is very similar to what a carpenter uses, it has a small container filled with a liquid and a bubble (to measure the change of the slope) There are different and varied sensitivity of tilt meters, for example; you can use tilt meters with ranges from 10 to 10,000 microradians depending on the volcano and range of tilt. “A bulge on the north flank, this was caused due to a blockage at the opening at the top of the volcano. The magma formed in a chamber on the side of the volcano and it was being pushed outward because the more magma was getting forced to the side. It increased by 7 ft a day.” Earthquakes You can predict when a volcano will erupt because you get earthquakes. This is because most volcanoes follow a regular pattern of increasing seismic activity as the eruption is about to take place, usually in the form of small earthquakes. Scientist use special equipment seismometers that tell and record earthquakes that happen underneath the volcano. Long period earthquakes- are beneath volcanoes and are believed that it is caused by magma moving through cracks that then shake the ground. Short period earthquakes- earthquakes under the volcanoes that is believed to be caused by rock breaking events Both types of

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