Judul: Pemetaan Tingkat Kerentanan Bencana Tsunami Menggunakan Sistem Informasi Geografis di Wilayah Pesisir Selatan Kabupaten Garut, Jawa Barat
Abstrak: Wilayah pesisir selatan Kabupaten Garut merupakan salah satu wilayah yang memiliki probabilitas terjadinya gempa bumi dan tsunami yang tinggi karena wilayahnya berhadapan langsung dengan pertemuan lempeng Indo-Australia, Megathrust Selat Sunda, dan Jawa bagian selatan. Penelitian ini bertujuan untuk mengidentifikasi dan memetakan tingkat kerentanan tsunami di wilayah pesisir selatan Kabupaten Garut, Jawa Barat. Peta kerentanan tsunami dibuat menggunakan metode tumpang susun (Overlay) dengan lima parameter, yaitu elevasi daratan, kemiringan lereng, jarak dari garis pantai, jarak dari sungai, dan penggunaan lahan. Penelitian yang mencakup wilayah 7 kecamatan ini terbagi dalam dua tahap yaitu tahap pengolahan data dan tahap survei lapang yang dilakukan pada tanggal 10 – 13 Januari 2022. Klasifikasi tingkat kerentanan tsunami dibagi menjadi lima kelas yaitu sangat rendah dengan luas wilayah sebesar 45.675,62 ha (14,89%), rendah dengan luas wilayah sebesar 206.241,16 ha (67,23%), menengah dengan luas wilayah sebesar 46.546,85 ha (15,17%), tinggi dengan memiliki luas wilayah sebesar 6.790,14 ha (2,21%), dan sangat tinggi dengan luas wilayah sebesar 1.497,17 ha (0,49%)., The southern coastal area of Garut Regency is one of the areas that has a high probability of an earthquake and tsunami because the area is directly opposite the meeting of the Indo-Australian plate, the Megathrust of the Sunda Strait, and the southern part of Java. This study aims to identify and map the level of tsunami vulnerability in the southern coastal area of Garut Regency, West Java. The tsunami vulnerability map was made using the Overlay method with five parameters, namely land elevation, slope, distance from the shoreline, distance from rivers, and land use. The research which covers 7 sub-districts is divided into two stages, namely the data processing stage and the field survey stage which was carried out on 10 – 13 January 2022. The classification of the tsunami vulnerability level is divided into five classes, namely very low with an area of 45,675.62 ha (14 .89%), low with an area of 206,241.16 ha (67.23%), medium with an area of 46,546.85 ha (15.17%), high with an area of 6,790.14 ha (2, 21%), and very high with an area of 1,497.17 ha (0.49%).
Keyword: coastal vulnerability, Garut Regency, GIS, tsunami

Judul: Pemetaan Tingkat Kerentanan Pantai Terhadap Bencana Tsunami di Wilayah Pantai Pangandaran, Jawa Barat
Abstrak: Indonesia are on the path of seismically active region and can cause a tsunami disaster. One of the area inIndonesia that is prone to tsunami disaster is Pangandaran Coast, West Java on southern coast of Java . One of the prime action in the tsunami disaster mitigation is to create a map of coastal vulnerability to the tsunami disaster. The research was conducted from April to December 2013 including three districts in Pangandaran. Analysis of tsunami vulnerability assessment was performed by using merger or overlay method with Geographic Information Systems (GIS). The parameters that used to analyze the vulnerability of tsunami is elevation, topography, landuse, coastal border, and the river banks. The vulnerability level is divided into five classes, that is very high, high, medium, low , and very low . From the entire area of research, Pananjung village, Babakan, Pangandaran (Pangandaran sub-district) and village Sukaresik and Cikembulan (Subdistrict Sidamulih) are the areas that have very high levels of tsunami vulnerability amounting to 737.703 ha. While the areas that have low vulnerability are Pagergunung Village, Putrapinggan, Kersaratu region with an area of 4816.204 hectare
Keyword: vulnerability, tsunami, GIS

Judul: Sintesis Flavon dari Fenol dan Benzoil Klorida
Abstrak: Flavone is a class of flavonoid, commonly found in plants with wide bioactivity spectrum. A widely used flavone synthesis route is through acidcatalyzed oxidative cyclization of β-diketone. In this study, unsubstituted flavone had been synthesized via 5-step from phenol, with 22% yield and successfully increased the yield of previous study on Fries rearrangement of phenyl acetate and benzoylation of o-HAP steps. Phenol was acetylated resulting 93% phenyl acetate. AlCl3-catalyzed Fries rearrangement in 1.5 hour and at 120 °C converted phenyl acetate into o-hydroxyacetophenone (o-HAP) with 40% yield. AlCl3 as catalyst produced o-HAP with higher and reproducible yield compared with BF3·Et2O and ZnCl2. Benzoylation of o-HAP followed by Baker-Venkataraman rearrangement of the ester product using KOH in dried pyridine produced β-diketone 1-(2- hydroxyphenyl)-3-phenylpropane-1,3-dione. The yield of ester and β-diketone were 71% and 85%, respectively. Finally, oxidative cyclization of β-diketone with sulphuric acid as catalyst produced 99% of flavone. The flavone product had been characterized spectroscopically and its melting point as well.
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