Strange Sounds
July 3, 2021
As one of Japan’s most active volcanoes, Sakurajima often dazzles with spectacular displays of volcanic lightning set against an ash-filled sky. But the volcano can also produce much smaller, invisible bursts of electrical activity that mystify and intrigue scientists.
Now, an analysis of 97 explosions at Sakurajima from June 2015 is helping to show when eruptions produce visible lightning strokes versus when they produce the mysterious, unseen surges of electrical activity, reported researchers recently.