Abstract

The Lusi mud eruption in Sidoarjo of East Java has provided huge impact to the people living in the surrounding area. The eruption has been followed by ground subsidence that has changed the ground structure. An assessment method has been introduced for analyzing the hazard. The method employs a rating system to quantify the hazard parameters, in which ground deformation parameters are significant. A hazard risk index is therefore obtained by multiplying hazard potential and vulnerability parameters.

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