The mountain, the site of hot-spring resorts, last erupted in 1792, when a tremendous explosion and subsequent tidal wave left 15,000 dead.
Parents with toddlers gravitate toward the beach, where mountains of plastic shovels and toys erupt.
In 2008, the mountain erupted spewing ash and steam.
Those events, after the mountain erupted Friday for the first time in 18 years, were less serious than what scientists monitoring the mountain had expected.
The mountain erupted on March 11, 1957, and the eruption ended the next day.
The mountain was still erupting on 30 November 2010 and the official alert status remained at level 4.
Just then, the mountain erupts as the Lord of the Locusts stirs beneath it.
The mountain has not erupted in historical times, although it is considered to be of Holocene age.
The mountain has not erupted in historic times.
The mountain had erupted; no one had been hurt.
