N0:7 Mount Unzen actually consists of several overlapping stratovolcanoes in the Kyushu region of Japan. The 1,500 meter volcano, which is still active, had its most noteworthy destruction in 1792. When several lava domes collapsed, a tsunami was triggered, killing over 15,000 people. One very recent eruption in 1991 killed over 40 people, including three volcanologists, and caused huge destruction to the buildings nearby.