“Volcanoes are tricky because we don’t get to watch directly what’s happening inside – we have to look for other signs," said Erik Klemetti Gonzalez, a volcano expert at Denison University, who was not involved in the study. Upswelling ground and ...

About two months before Mauna Loa spewed rivers of glowing orange molten lava, geologists detected small earthquakes nearby and other warning signs.

About two months before Maunaloa spewed lava, geologists detected small earthquakes nearby and other signals. Now a study of the volcano’s lava confirms that molten rock within Earth's crust was rising upward about 70 days before the eruption in late November 2022.