VOLCANIC HAZARDS AT KELUT-VOLCANO (JAVA-I SLAND, INDONESIA) - LESSONSLEARNED FROM THE 1990-ERUPTION

Volcanic hazards at Kelut volcano (Eastern Java, Indonesia), one of th e most active and deadliest volcanoes in historical times, are reasses sed here based on a study of the last 1990 eruption. The eruptive beha viour of the volcano has been regular over this century at least, with five eruptions of comparable magnitudes, intensities and eruptive sty les since 1901. Volcanic hazard assessment at Kelut is based on the li kelihood that this regime will be maintained in the near future. The m ajor identified hazards before 1990 were ''primary'', syn-eruptive lah ars. Predominant hazards in 1990 were phreatomagmatic pyroclastic surg es, proximal (less than or equal to 15 km) tephra from plinian fallout , and secondary lahars.