This paper discusses the relations between the impacts of volcanic eruptions at multiple-scales and the related-issues of disaster-risk reduction (DRR). The review is structured around local and global impacts of volcanic eruptions, which have not been widely discussed in the literature, in terms of DRR issues. We classify the impacts at local scale on four different geographical features: impacts on the drainage system, on the structural morphology, on the water bodies, and the impact on societies and the environment. It has been demonstrated that information on local impacts can be integrated into four phases of the DRR, i.e., monitoring, mapping, emergency, and recovery. In contrast, information on the global impacts (e.g., global disruption on climate and air traffic) only fits the first DRR phase. We have emphasized the fact that global impacts are almost forgotten in the DRR programs. For this review, we have extracted case studies from Indonesia, and compared them to those of other regions, because Indonesia is home to >130 volcanoes and experienced several latest volcanic eruptions with VEI > 5.

This research aims to identify various coastal and settlement typology as the basis to determine action plan for reducing tsunami risk. The action plan were issued by referring to priority level of tsunami management.Comparative analysis was applied through comparing different coastal and settlement typology at the selected coastal area, considering the tsunami risk zones determined by National Disaster Management Agency (BNPB). The results show that mitigation strategies can be distinguished in various coastal and settlement typology for each priority area, i.e. in Mentawai megathrust, Sunda Strait and the southern part of Java, Bali region and Nusa Tenggara, and Papua region. The components of action plan should be conducted in accordance with the priority level of each region.Key words: tsunami risk, coastal profile, settlement typology, priority level, InaTEWS Abstrak Penelitian ini bertujuan untuk mengidentifikasi berbagai tipologi pesisir dan permukiman sebagai dasar untuk menentukan rencana aksi untuk mengurangi risiko tsunami. Rencana aksi dihasilkan dengan mengacu tingkat prioritas manajemen tsunami. Analisis perbandingan diterapkan dengan cara membandingkan tipologi pesisir dan tipologi permukiman pada daerah kepesisiran terpilih. Pemilihan daerah tersebut mempertimbangkan zona risiko tsunami yang telah ditentukan oleh Badan Nasional Penanggulangan Bencana (BNPB

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