The eruption occurred after a huge earthquake struck Russia’s Far East early Wednesday, an 8.8-magnitude temblor that caused small tsunami waves in Japan and Alaska and prompted warnings for Hawaii, North and Central America and Pacific islands south toward New Zealand.

Russia’s Krasheninnikov Volcano erupted for the first time in recorded history, sending ash 6 km high. No settlements are threatened. The eruption follows a recent major earthquake in Kamchatka.