The Klyuchevskoy eruption was hours after a huge earthquake early Wednesday triggered a tsunami that sent waves across the Pacific.

Kamchatka is a remote part of eastern Russia that many people never think about. But it’s also home to one of the most powerful volcanoes in the world. When that volcano stirs, scientists and nearby communities take notice.

The Klyuchevskaya Sopka volcano on Russia’s Kamchatka peninsula has begun erupting, the Russian Academy of Sciences’ Geophysical Service reports. According to the experts, lava is flowing down the volcano’s western slope,