The eruption destroyed these in minutes and caused a tsunami that obliterated most of their large village, situated on Tagulandang, opposite Ruang.

[4] Eruptions that began at 9:45pm (13:45 GMT) on 16 April forced over 800 people to evacuate the island for nearby Tagulandang.

[6] On 17 April, authorities raised the volcano's alert level to four, the highest in Indonesia and issued a tsunami alert which led to orders for 11,000 residents and evacuees in Tagulandang to be moved to Manado in mainland Sulawesi, citing the risk of the volcano collapsing into the sea.

[8] Siau Tagulandang Biaro Islands Regency, where the volcano is located, declared a 14-day state of emergency.

[13] Airlines from West Malaysia and Singapore cancelled flights to Sabah and Sarawak on 18 April due to reduced visibility.