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How Often Do Volcanoes Erupt?
Volcanoes can erupt only once, but other volcanoes, such as Kilauea, can erupt continuously for almost 30 years. Discover how those who study volcanoes define active volcanoes with help from the chair of a department of environmental studies in this free... More »
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Source: www.ehow.com

volcano.oregonstate.edu/how-often-do-volcanoes-erupt

Eruptions. Well that depends on the volcano . Some volcanoes erupt very often ( and some like Kilauea almost never stop). On the other hand, some volcanoes ...

.ask.com/youtube?q=How+Often+Do+Volcanoes+Erupt&v=0QcfzDD8jSY
Apr 2, 2010 ... Volcanoes can erupt only once, but other volcanoes, such as Kilauea, can erupt continuously for almost 30 years. Discover how those who ...

earthj14.imageoscientist.eu/2014/06/13/how-often-do-volcanoes-erupt

Jun 13, 2014 ... It depends on the type of volcano and the amount of magma underneath the volcano. The longest chain of volcanoes occur in mid-oceanic rifts ...

www2.usgs.gov/faq/categories/9819/2729

Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Because it is lighter than the solid rock ...

www.quora.com/How-often-do-volcanoes-erupt

Sep 5, 2016 ... It depends on the volcano. For example, the last eruption of Yellowstone (a supervolcano) was roughly 630,000 years ago, and the two before ...

www2.usgs.gov/faq/categories/9821/2718

Alaskan volcanoes have produced one or two eruptions per year since 1900. At least 20 catastrophic caldera forming eruptions have occurred in the past 10,000  ...

www2.usgs.gov/faq/categories/9825/2714

Mount Shasta (California) has erupted, on the average, at least once per 800 years during the last 10,000 years, and about once per 600 years during the last  ...

www.scholastic.com/teachers/articles/teaching-content/volcanic-eruptions

The pressure forces the magma to rise through the crust of solid rocks, creating a volcanic eruption. Do volcanoes spew ash or lava first? Volcanoes release ash ...

www.reference.com/science/volcanoes-occur-6c1b255b1a0e7544

It is estimated that approximately 50 to 60 volcanoes erupt globally every month. Some volcanoes, such as Kilauea, are almost continually active.