Furthermore, based on interpretation from Figure 4.7, generally, there are three drainages pattern which shapes the land form, i.e. parallel-rectangular,
trellis-rectangular and radial patterns.
Thereby, parallel-rectangular Pr-Rct pattern in research area explains that
area controlled by structure geology dominantly such normal fault and then forced by strike-slip fault on the next period of tectonic occurrence. Whereas
trellis-rectangular Tr-Rct also controlled the research area by structure geology
dominantly, but the first tectonic occurrence produced folded area.
4.6 Geological Hazard Sensitive Area
In connection with geological hazards sensitive area, integrating existing settlement area, alteration zone, slope steepness and geomorphological
interpretation fault drainage pattern, finally, determination of sensitives area can be mapped.
In general, sensitive area occupied by volcanic and sedimentary breccias, conglomerate, sandstone, limestone, claystone and alluvium, with slope controlled
bigger than 15. In some place, it is also occupied by igneous rock with slope controlled bigger than 50. Whereas, most of clay-hydroxyl which occupied in
study area Figure 4.2. Page: 42 indicated those area rich with mineral which produced caused by tectonic activity. Clay-hydroxyl itself formed by tectonic
activity possibilities or geothermal processes that reacted with country rockhost rock that distributed by permeability fracture. Figure 4.8.
46
Figure 4.8. Sensitive Area over Rock Type
Thereby, based on raster and spatial analysis and supported by geomorphological and geological interpretation, it can be clearly seen the risky
settlement area occupied around areas which is classified as sensitive area Figure 4.9.
47
Figure 4.9. Geological Hazard Settlement Sensitive Area.
Finally, after sensitive area and risky settlement overlaid over the administration map Figure 4.10, it can be clearly seen the distribution of risky
settlement in several places in West Java and Banten Province Table 4.4..
Figure 4.10. Geological Hazard Risky Settlement
48
Karawang Sukabumi
Ciengang Geger Bitung
Hegarmulya, Cidadap Sagaranten
Cibenda Ciemas
Cimaherang Kabandungan
Padabeunghar Jampang Tengah
Bantargadung, Hegarmanah, Sirnajaya Warung Kiara
Cibodas, Pelabuhanratu, Citarik Pelabuhan Ratu
Sinaresmi, Caringin, Pasirbaru, Cikahuripan, Gunung Kramat, Gunung
Tanjung, Cikelat, Cicadas., Cimaja, Karang Papak, Cisolok, Ridogalih,
Margalaksana, CIleungsi Cisolok
Cidahu, Hutan Cidahu
Cipeteuy Kabandungan
Sukabumi West Java
Kopo, Citeko, Cibeureum, Tugu Utara Cisarua
Gadog, Kuta Megamendung
Babakan Raden, Cariu, Cibatu Tiga, Mekarwangi, Cikutamahi, Tanjung Rasa,
Bantar Kuning, Buanajaya, Tanjung Sari, Cibadak
Cariu Karang Tengah
Babakan Madang Hambalang, Tajur
Citeureup Pangradin, Jugala Jaya, Cileuksa
Jasinga Ciaruten Ilir
Cibungbulang Leuwiliang, Wangun Jaya
Leuwiliang Pabuaran
Kemang Karihil
Parung Cipinang, Kampungsawah, Rabak,
Leuwibatu Rumpin
Argapura, Rengasjajar, Mekarjaya, Batujajar
Cigudeg Sukaresmi, Sukadamai, Sukaharja,
Pabuaran Sukamakmur
Singasari, Bendungan, Balekambang, Sukajaya
Jonggol Nambo, Kembang Kuning, Lulout,
Leuwikaret Cileungsi
Cikeas Udik, Wanaherang Gunung Putri
Bogor West Java
Cilograng, Cibareno Bayah
Gunung Gede, Cihara, Situregen, Sukajadi, Hegarmanah, Sindangratu,
Mekarjaya, Cimancak Panggarangan
Ciparay, Ciusul, Citorek Cibeber
Cirinten Bojongmanik
Haurgajrug Cipanas
Muncang Muncang
Wantisari Leuwidamar
Cimarga, Sangkan Manik Cimarga
Sajiramekar Sajira
Guradog Maja
Lebak Banten
Village District
Sub-Province Province
Table 4.4. Risky Settlement Area in West Java and Banten
49
Cupunagara Cisalak
Ciater, Cibeusi Jalan Gagak
Banggalamulya Cipendeuy
Ponggang, Talagasari, Curugagung Sagalaherang
Subang West Java
Mekarjaya Cempaka
Margaluyu, Mekarjaya, Taringgul Landeuh
Wanayasa Kertasari
Bojong Citamiang
Maniis Parakanlima
Purwakiarta Pesawahan
Pesawahan Tegalega
Ciampel Sukatani, Cibodas, Cianting
Sukatani Kutamanah, Ciririp, Parungbanteng,
Danau, Jatimekar, Kembangkuning, Tajursindang, Sindanglaya
Jatiluhur Medalsari, Mekarbuana, Wargasetra,
Cintalaksana, Cintawargi, Kutalanggeng, Kutamaneuh
Pangkalan
Karawang West Java
Sukapura, Cibeureum, Tarumajaya, Cikembang, Cihawuk, Neglawangi
Kertasari Mandalahaji, Nagrak, Cikawao,
Pangauban, Cikitu, Girimulya Pacet
Arjasari, Pinggirsari Arjasari
Ciheulang, Gunungleutik Ciparay
Bojongmalaka, Baleendah, Manggahang Baleendah
Pananjung, Bandasari, Nagrak Banjaran
Malasari, Sukamaju Cimaung
Cibodas Pasirjambu
Cintakarya, Sindangkerta Gununghalu
Jambu, Cintaasih Cipongkor
Sukajaya, Cikahuripan, Gudangkahuripan, Jayagiri, Suntenjaya
Lembang Kertawangi, Jambudipa
Cisarua Lagadar
Margaasih Leuwigajah
Cimahi Selatan Gadobangkong
Ngamprah Cipatat, Citatah, Gunungmasigit,
Cirawamekar Cipatat
Puteran, Rende, Cikalong, Kangasari Cikalong Wetan
Ciroyom, Sirnaalih, Sirnaraja, Nanggeleng, Margaluyu
Cipendeuy
Bandung West Java
Sinarjaya, Cijayana Bungbulang
Cimahi Cisewu
Selaawi Talegong
Garut West Java
Ramasari, Cihea Bojong Picung
Mekar Sari, Sukamulya, Mekar Mulya, Cigunungherang, Cirama Euwah Girang,
Kamurnag Cikalong Kulon
Sukaresmi Sukaresmi
Ciloto, Cimacan, Sukatani, Cipendawa, Gadog, Cibodas
Pacet Cianjur
West Java
Village District
Sub-Province Province
50
Sukahurip Cijambe
Tanggulun Timur, Jambelaer, Cisampih Kalijati
Village District
Sub-Province Province
51
V. CONCLUSIONS AND RECOMMENDATION