Asep Saepuloh
Mt. Kelud located in East Java, Indonesia, is an active stratovolcano. The eruptions of Mt. Kelud are characterized by explosive eruptions at the summit crater, accompanied with pyroclastic flows and lahars. However, in February 2014 are more explosive than usual (VEI 4). The eruptions produced tephra and ashes which are deposited to about 600 km toward west. Following this eruption, we assessed the eruption precursor using time series of the Phased Array type L-band Synthetic Aperture Radar (PALSAR) data onboard the Advanced Land Observing Satellite (ALOS). The changes at the summit lava dome prior to the eruption are the target for defining the eruption precursors. Volume estimation was performed for the lava dome before eruption and volcanic products after the eruption. Estimating the volume of volcanic products is crucial to mitigate secondary hazards such as flooding from mud flows or lahars. Comparison between volume of lava dome and volcanic products can be used to predict the ejected magma beneath the summit.
Penerapan Teknologi Tepat Guna, Penerapan Karya Tulis
The unusual eruptions of Mt. Kelud in February 2014