GEOLOGI BAWAH PERMUKAAN KAITANNYA DENGAN POTENSI PELULUKAN / LIKUIFAKSI DI DAERAH ERETAN DAN LOSARANG, JAWA BARAT
DOI:
https://doi.org/10.33332/jgsm.geologi.v21i2.139Abstract
The investigated area which belongs to the coastal plain is composed of Quaternary sediments such as soil, swamp, near shore, offshore and pre-Holocene sediments. Further more, near shore sediment can be divided into sand flat, mixed flat, mud flat and beach sand. In general those sediments are still loose and water saturated. Among beach sand, sand flat and mix flat have a high level of vulnerability to liquefied. Based on seismic data, an occurrence of earthquakes can be triggered by two earthquake sources namely subduction sources. An earthquake took place on August 8, 2007 at 04:58 known as Indramayu Earthquake is an example of eartquake triggered by subduction zone since the quake has a depth of 289.2 Km with a magnitude of M 7.5 on the Richter scale. From the geological aspect and seismicity point of view the investigated area is potential for experience liquefaction events. Based on the physical properties of the sand deposits and their stratigraphical position as well as other factors such as a thickness of sand layer, types of overlay and underlain sediments then a liquefaction susceptibility in this region can be divided into very low liquefaction susceptibility region, low liquefaction susceptibility region and high liquefaction susceptibility region.
Keywords: quaternary, earthquakes, liquefaction, Inramayu
Downloads
References
Achdan A., dan Sudana D., 1992. Peta Geologi Lembar Indramayu Skala 1 : 100.000 Puslitbang Geologi Bandung
Djamal, B., 1986. Studi model fasies batupasir endapan Kuarter daerah Cilangkap, berdasarkan analisis besar butir dan analisis struktur sediment, Skripsi Jurusan Geologi Unpad, Bandung. Tidak diterbitkan
Djuri, H.M.D., 1973. Peta Geologi Lembar Arjawinangun, Jawa Skala ! : 1000.000. Direktorat Geologi Bandung
Folk, L.R., 1961. Petrology of Sedimentary Rocks; The University of Texas
Lumban Batu, U.M, 2004. Kajian Potensi Bencana Pelulukan (Liquefaction) di Daerah Semarang dan Sekitarnya. Jurnal Sumber Daya Geologi Vol. 1 No. 1. Pusat Survei Geologi Badan Geologi, Departemen Energi dan Sumber Daya Mineral
Lumban Batu U.M., dan Suyatman Hidayat, 2007. Evaluasi awal Kerentanan Pelulukan /Likuifaksi daerah Kendal dan sekitarnya, Jawa Tengah. Jurnal Geologi Indonesia, Vol.2, No 3. Badan Geologi, Departemen Energi dan Sumber Daya Mineral
Masyhur Irsyam, Tim Revisi gempa Indonesia 2010. Peta Hazard Gempa Indonesia , SNI 03-1726 – 2002, Kementerian Pekerjaan Umum
Matti J.C, 1991. Liquefaction Susceptibility in the San Bernardino Valley and Vinicity, South California; A Regional Evaluation U.S Geological Bulletin 1898.
Obermeier S.F., Martin J.R., Frankel A.D., Yould T.L., Munson P.J., Munson C.A., and Pond E.C., 1993. Liquefaction Evidence for One or More Strong Holocene Earthquakes in the Wabash of Southern Indiana and Illinois, with a Preliminary Estimate of Magnitude. U.S. Geological Survey Professional Paper 1536. United State Government Printing Office, Whasington
Reineck, H.E.,and I.B. Singh 1973. Depositional Sedimentary Environment. Springer-Verlag Berlin Heidelberg New York.
Seed, H.B., and Idris I.M., 1971. Simplified procedure for evaluating soil liquefaction potential: Proceeding of the American Society of Civil Engineering, Journal of the Soil Mechanics and Foundations Division, v.97, no SM 9.
Seed, H.B., Idriss, I.M., and Arango, Ignatio, 1983. Evaluation of liquefaction potential using field performance data. Jurnal of the Geothechnical Engineering Division, Vol. 109, No. 3, pp. 458-482
Yould, T.L. and Perkin D.M., 1978. Mapping liquefaction-induced ground failure potential: Journal of the Geotechnical Engineering Division, ASCE., vol. 104, no.GT4,
Van Bemellen, R.W, van, 1949. The Geology of Indonesia, v. I-A, Martinus Nijhoff, the Hague, 732
Wang,1979. http://www.ce.washington.edu/~liquefaction/html/susceptible2,html: Which soils are liquefaction susceptible ?
Downloads
Published
Issue
Section
License
Authors who publish articles in Jurnal Geologi dan Sumberdaya Mineral (JGSM.Geologi) agree to the following terms:
- Authors retain copyright of the article and grant the journal right of first publication with the work simultaneously licensed under a CC-BY-NC or The Creative Commons Attribution–ShareAlike License.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access)
