Mauna Loa, the world's largest active volcano, has rumbled back to life in Hawaii over the past 13 months with more seismic activity than at any time since its last eruption, scientists say, while calling it too soon to predict another blast.
The volcano, which most recently erupted in 1975 and 1984, has been rattled since March 2013 by earthquakes of the same type and in the same location as the temblors that preceded those explosions, said Wes Thelen, a seismologist for the U.S. Geological Survey's Hawaiian Volcano Observatory.
"The earthquakes we are seeing at Mauna Loa lead us to believe that some of the same things that happened before the 1975 and 1984 eruptions are happening right now," Thelen said. "We don't see this kind of activity outside of pre-eruptive earthquake sequences."
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