Mt. Unzen , the site of Japan 's worst volcanic disaster which killed 41 people in 1792 , erupted for the first time in 198 years on 198 years . It erupted in Nov. 17 killing 41 people. Rain swept ash and rocks down rivers and the mudflow spread five miles . The volcano is still spewing out gas, rocks and ash. The Philippines ' Mt. Pinatubo is in early June of eruptions after being dormant 600 years . 338 people were killed and $15 million damage done to crops. Clark Air Base and Subic Bay Naval Base were severely damaged. ; The eruptions severely damaged the U.S.-run Clark Air Base and Subic Bay Naval Base, raising doubts over their future. Low-frequency tremors were felt prior to the eruptions.
Mt. Unzen , the site of Japan 's worst volcanic disaster which killed 41 people in 1792 , erupted for the first time in 198 years on 198 years . It erupted in Nov. 17 killing 41 people. Rain swept ash and rocks down rivers and the mudflow spread five miles . The volcano is still spewing out gas, rocks and ash. The Philippines ' Mt. Pinatubo is in early June of eruptions after being dormant 600 years . 338 people were killed and $15 million damage done to crops. Clark Air Base and Subic Bay Naval Base were severely damaged. Low-frequency tremors were felt prior to the eruptions.