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Overview of the 2018 palu earthquake

Sahadewa A.a, Irsyam M.a, Hanifa R.a, Mikhail R.a, Pamumpuni A.a, Nazir R.b, Pramono S.c, Sabaruddin A.d, Faizal L.d, Ridwan M.d, Himawan A.e, Simatupang P.e, Alatas I.M.e, Harninto D.S.e, Djarwadi D.e, Kartawiria A.e, Djunaidy M.e, Suhendra I.e, Kawanda A.e, Widodo Y.e

a National Center for Earthquake Studies & Institut Teknologi Bandung, Indonesia
b Centre of Tropical Geoengineering, Universitas Teknologi Malaysia, Malaysia
c Indonesian Agency for Meteorology, Climatology, and Geophysics, Indonesia
d Research Institute for Human Settlement, Ministry of Public Works & Housing, Indonesia
e Indonesian Society for Geotechnical Engineering, Indonesia

[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019 Associazione Geotecnica Italiana, Rome, Italy.A Mw 7.4 earthquake struck Palu, the capital city of Central Sulawesi, and its surrounding areas on 28 September 2018. This earthquake triggered a series of catastrophic disasters. Liquefaction occurring in many places led to massive damages. Following the earthquake, tsunamis up to 11 m high hit Palu bay and nearby coastal areas. This series of disasters claimed a great number of lives and caused losses of properties in the greater Palu area. A collaborative field investigation was performed to evaluate the earthquake impact. This paper provides an overview of the seismological, geological, and geotechnical factors that contributed to the catastrophe. Results of field investigations post 2018 Palu earthquake are reported in this manuscript with emphasize on the most devastated areas, namely Petobo, Sibalaya, Jono Oge, and Balaroa. In general, ground movements at these sites due to the earthquake were associated with multiple mechanisms, including liquefaction, landslide, lateral spreading, and breakage of adjacent water channels.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Coastal area,Field investigation,Geotechnical factors,Ground movement,Lateral spreading,Massive damage,Water channels[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]This paper is based upon a field reconnaissance mainly supported by PusGen and HATTI. Any opinions, findings, conclusions, and recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of any supporting institutions. The authors would like to thank GEER, PUSKIM, ITB, PVMBG, LIPI, PUSJATAN, BMKG, HATTI, BNPB, the University of Tadulako, Dr. Arie S. Moerwanto, Mrs. Polana B. Pra-mesti, Mr. Toha Fauzi, Mr. Tri Mulyono, Mr. Daniel Pakpahan, and Mr. Haris E. Setyawan for the discussion and support during our collaborative field investigations.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]