A TEAM from the Directorate General of Geology and Mining was flying above Unauna Island. They were observing Mount Colo, Tomini Bay, on July 23, 1983. Just a few hours later, Mount Colo erupted violently.

Earthquake experts JA Katili and Sudrajat explained that all houses were damaged. Plants and animals, coastal fish and coral fish were all devastated. In Unauna, 90 percent of the island was covered with dust. The thickness of the dust varied