Indonesia Bali Volcano set to erupt 10,000 flee. Earlier this week there was a 5.7mag undersea earthquake off the coast of Bali., i noted this in the Los Angeles Earthquake No Cookies | Herald Sun Evacutions are now underway. It was the third time in little more than a week that the alert level has been raised. This time it is rated as a Category 4 - meaning a hazardous eruption is imminent. It’s the first time in 54 years such an alarm has been raised. The Volcano Observatory Notice for Aviation reports the volcano’s seismic activity had dramatically increased. “This number of seismicity is an unprecedented seismic observation at Agung volcano ever recorded by our seismic networks,” it said in a statement. Earlier, the Department of Meteorology, Climate and Geophysics said there has been a “tremendous increase” in seismic activity at the mountain, indicating a greater probability of an eruption.