article_snippet.sent: The park is a supervolcano so enormous, The park has puzzled geophysicists for decades, but now a research group, using seismic technology to scan The park depths, have made a bombshell discovery.
article_snippet.sent: Yellowstone's magma reserves are many magnitudes greater than previously thought, say scientists from the University of Utah.
article_snippet.sent: Most of it is in a newly discovered magma reservoir, which scientists from the University of Utah featured in a study published on Thursday in the journal Science.
article_snippet.sent: scientists from the University of Utah Utah also created the first three-dimensional depiction of the geothermal structure under Yellowstone, which comprises three parts.
article_snippet.sent: The magma chamber, which scientists already knew about, lies on top of the reservoir -- and draws magma from the reservoir.
article_snippet.sent: Also, the discovery doesn't mean that there is now more magma than there was before, the scientists say.
article_snippet.sent: The actual hazard is the same, but now we have a much better understanding of the complete crustal magma system," said researcher Robert B. Smith.
article_snippet.sent: The Utah researchers gave Yellowstone's magma bowels a sort of CT scan, said lead researcher Hsin-Hua Huang.
article_snippet.sent: Volcanic activity triggers 2,000 to 3,000 small earthquakes per year, and the shake and shock waves travel at different speeds through molten, hot and other rock.
article_snippet.sent: Here are the upper magma chamber and lower magma reservoir by the numbers.
article_snippet.sent: University of Utah seismologists discover magma reservoir under Yellowstone from The University of Utah on Vimeo.
highlights_snippet.sent: Scientist measured the thousands of small earthquakes in Yellowstone to scan Earth underneath Earth .
  
highlights_snippet.sent: the thousands of small earthquakes discovered a vast magma reservoir fueling a vast one scientists already knew about .
  