ANALISIS KAWASAN RAWAN GEMPA BUMI UNTUK MITIGASI BENCANA DI PALUNG SUMATRA DAN SEKITARNYA

Main Article Content

Rosiyanti Sinaga
Imam Setiaji Ronoatmojo

Abstract

Indonesia is situated at the junction of three active plates: Eurasia, Circum Pacific, and Indo-Australia.. Sumatran tectonics is controlled by the subduction of two plates, namely the Indo-Australian plate and the southeastern Eurasian plate. The research area is along the Sumatra Trench and the data used are from the United States Geological Survey in  the last 50 years, the depth is 0-60 km, and the methodology used is the least squares method. Purpose of this study, to predict the occurrence of earthquakes with the aim of minimizing the impact of damage that occurs in earthquakes. The Locked Area has a high return period value, the influencing factor is the existence of a seismic gap, where the stress applied to this area will be isolated due to seamount subduction, so that it can withstand earthquakes. but one day, when the rock can no longer withstand the stress, it will cause an earthquake with large strength.
Dimensions

Downloads

Download data is not yet available.

Plum Analytics

Article Details

Section
Articles

References

BMKG., 2014. Katalog Gempa Bumi Signifikan dan Merusak 1821 – 2013, BMKG. Jakarta.

BNPB., 2008. Pedoman tentang Penyusunan Rencana Penanggulangan Bencana.

Gutenberg, B. and Richter, C.F., 1964. Frequency of Earthquakes in California. Bull. Seismol. Soc. Am., 34, 185-188.

Muller, R.D., Sdrolias, M., Gaina, C., Roest, W. R.. 2008. Age, spreading, rates and spreading symmetry of the world’s ocean crust. Geochemistry, Geophysics, Geosystem, 9

Ronoatmojo, Imam Setiaji. 2019. Mekanika Batuan. Jakarta: Penerbit Universitas Trisakti

Singh, dkk. 2011. Aseismic zone and earthquake segmentation associated with a deep subdected seamountin Sumatra. Nature geoscience, Vol.4 Nomor 309.

Smith, D. K., and Cann, J. R. 1990. Hundreds of small volcanoes on the median valley floor of the Mid- Atlantic Ridge at 24–30 o N. Nature, 348,152–155.

USGS. 2015, Significant Eartquake Archive. http//www.usgs.gov/, diakses 10 Agustus 2021.

Wessel, P., Sandwell, D. T., & Kim, S. 2010. The Global Seamount Census. Oceanography, 23(1