Is a long-dormant Russian volcano waking up? It’s complicated

Scientists debate how to interpret quakes near Bolshaya Udina on the remote Kamchatka Peninsula

Bolshaya Udina volcano

SLEEPING GIANT  Bolshaya Udina, a volcano on Russia’s Kamchatka Peninsula, has long been inactive. Some scientists suggest the volcano is waking up, based on nearby seismic activity. But others say those rumblings may be linked to active volcanoes in the region.

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