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Mini earthquakes provides clues to volcanic behavior (Image 1)


A small explosion from Fuego, an open vent volcano located 20 miles west of Guatemala City

A small explosion from Fuego, an open vent volcano located 20 miles west of Guatemala City. Open vent volcanoes constantly pop with small eruptions, which cause low-level, low-frequency earthquakes but usually pose little risk. Scientists are studying these earthquakes to learn more about volcanic behavior and, ultimately, better ways to predict when a major eruption might occur.

Greg Waite, an assistant professor of geological and mining engineering and sciences at Michigan Technological University, is conducting his research on Fuego and Pacaya, another open vent volcano just south of Guatemala City, under a National Science Foundation (NSF) Faculty Early Career Development (CAREER) award. By understanding the behavior of these mini earthquakes, he hopes to collect more details about the behavior of all eruptions, including information about the shape of volcanic plumbing systems and the dynamics that result in eruptions.

"We can apply what we learn about these small, repetitive events to other active volcanoes that are capable of large, damaging eruptions," says Waite. "We are trying to get a better handle on what these little earthquakes mean so we can better forecast major eruptions."

To learn more about Waite's research, see the NSF Discovery story Studying Mini Earthquakes Provides Clues to Volcanic Behavior. [Research supported by NSF's Office of International and Integrative Activities, grant IIA 0530109.] (Date of Image: January 2008 to January 2009) [Image 1 of 4 related images. See Image 2.]

Credit: Greg Waite, Michigan Tech

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