Volcanic blasts reaching heights of up to 18 km have grounded flights in the region.

Indonesia’s Geology Agency raised Mount Lewotobi Laki Laki to the highest alert level after twin eruptions on Flores island sent ash columns soaring 18 km into the sky and produced pyroclastic avalanches traveling up to 5 km down its flanks. These floods have affected nearby villages, although no injuries have been reported. Authorities have expanded a 7 km exclusion zone and warn residents about rain-triggered lava flows in river valleys.

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https://apnews.com/article/mount-lewotobi-laki-laki-volcano-eruption-e2b79474c192ee1ba8290946a28e4a54