The growing ash plume from Ulawun in PNG, captured just after the eruption started in June 26, 2019. Image: Himawari-8, JMA.

For the second time in a week, a blast from a new eruption has topped the 10 kilometers. However, unlike Raikoke in Russia, this one came from a volcano that has a well-known history of big explosions.

Ulawun, on the island of New Britain in Papua New Guinea, unleashed an eruption this morning (local time) that reached at least 13.5 kilometers (45,000 feet) accordin