DOCSLIB.ORG

Lesson Learnt from the Yogyakarta Earthquake 2006

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Lesson Learnt from the Yogyakarta Earthquake 2006 J. SE Asian Appl. Geol., Jul–Dec 2009, Vol. 1(2), pp. 32-36 ROAD TO EARTHQUAKE MITIGATION: LESSON LEARNT FROM THE YOGYAKARTA EARTHQUAKE 2006 Subagyo Pramumijoyo∗1 1Department of Geological Engineering, Gadjah Mada University, Yogyakarta, Indonesia Abstract drilling until 60 m each, measuring seismic veloc- ity on bore hole, and magneto telluric measurement. At early in the morning of May 27, 2006, people We also have helped by Kyushu University in in- of Yogyakarta was stroke by earthquake and mostly stalling micro seismic net work. The research was heavily damaged building are in lowland or Yo- followed by either undergraduate and graduate stu- gyakarta depression where is occupied by the Young dents. Fortunately our research was financed by Merapi sediments. The magnitude of earthquake is AUN/Seed Net - JICA. Some of the results were pub- Mw = 6.2 and USGS rapid moment tensor shows lished in a book entitled The Yogyakarta Earthquake that this earthquake was due to strike-slip fault of May 27, 2006. Another outcome is the Maps movement. of Microzonation and Earthquake Hazard of Bantul Seismic history of Yogyakarta area shows that Yo- Area that dedicated to Bantul people. gyakarta was stroke by several earthquakes with dif- Based on aerial photograph observation and field ferent epicenter location. At least two earthquakes observation on Bantul Regency, especially along the stroke the area, that is in 1876 and 1943. The dam- Opak River, and to Wonosari to the East, there was ages are similar to the damages of actual earthquake. no surface ruptures, so there is no fault on sur- Yogyakarta depression is mostly covered by Young face. Interpretation of aftershock data was showing Merapi sediments that consist of tuff, volcanic ash, the difference cluster. There is still open problem in breccias, agglomerate and lava with Quaternary in determining either epicenter or aftershock location. age. The thickness of this sediment is up to 100 m. The damage building was interpreted as due to its Our reactive work was to establish firstly zone of geologic setting, non engineered building, and close damage. For this purpose, we made aerial photo- to epicenter of earthquake. This heavily damaged graph along the most damaged area. In the same time building are located on the Young Merapi sediments one of our teams go to the field to measure the cracks, at Bantul Regency and lake deposits at Gantiwarno and the other teams to observe liquefaction, hydro and Bayat area where it can amplify the surface seis- geologic measurement, and observation on landslide mic wave. It implies that Peak Ground Acceleration induce by earthquake. Secondly, we must under- according to Indonesian National Standard should stand the soil properties and its thickness, because in be modified in Yogyakarta area. seismic history it was a similar damage on the same Keywords: Earthquake, seismic, epicenter, micro- area due to earthquakes however the earthquake epi- tremor, microzonation. centers were different. For this purpose we utilize the method of micro-tremors. We also made some 1 Introduction ∗Corresponding author: S. PRAMUMIJOYO, Depart- On Saturday morning of May 27, 2006, at ment of Geological Engineering, Faculty of Engineering, 5:53:59 AM Yogyakarta was stroke by earth- Gadjah Mada University, Jl. Grafika 2 Yogyakarta, 55281, Indonesia. E-mail: [email protected] quake According to United States Geological 32 ROAD TO EARTHQUAKE MITIGATION: LESSON LEARNT FROM THE YOGYAKARTA EARTHQUAKE Survey (USGS) this earthquake epicenter lo- ing since the emergency perceptive phase of cated at 25 km south-south east of Yogyakarta Disaster Cycle (Sutaryo, 2007) with Mw: 6.2, but according to Indonesian Me- teorological and Geophysical Agency (BMG) 2 Geology of Yogyakarta area in brief the epicenter is located at 40 km south of Yo- gyakarta with 5.9 Richter scale. USGS rapid Yogyakarta is located in a depression which is moment tensor shows that this earthquake was on the west limited by Kulon Progo Mountains due to strike-slip fault movement. and to the east bounded by Southern Moun- This earthquake is not great earthquake how- tains. ever it has resulted 5,048 victims, 19,401 serious Geology of Kulon Progo Mountains consist injuries, 8,437 minor injuries, 487 paralyzed and of Nanggulan Formation that consists of sand- 430,374 houses were damaged. The total cost of stone with lignite intercalation, sandy marls lose is Rp 29,1 trillion with currency: US$ 1.- = and claystone with limonite concretion and in- Rp. 9000.- (Yuswantana et al., 2007). In fact it tercalation with marls and limestone, sandstone is not the first time Yogyakarta was stroke by and tuff, with Eocene in age. This forma- earthquake. According to Newcomb and Mc- tion was covered unconformable by Old An- Cann (1987) there were some great earthquakes desite Formation that consists of andesitic brec- stroke Yogyakarta, there are: in January 4, 1840; cias, tuff, lapilli tuff, agglomerate and andesitic June 10, 1867; and March 28, 1875 and resulted lava intercalation. The age of this formation from multi sources. The 1840 event had very is Oligocene-Early Miocene. This formation localized tsunami area and in Yogyakarta may was covered unconformable by Jonggrangan be felt earthquake with MMI > VIII, possibly Formation that consists of conglomerate, tuffa- an epicenter on the sea or inland epicenter near ceous marl, calcareous sandstone with lignite coast line so that landslides occurred on steep intercalation, bedded limestone and coral lime- coast and resulted a small tsunami. The 1867 stone, with Middle Miocene in age. This for- event was no tsunami and indicate inland epi- mation is overlain by Sentolo Formation that center. This event heavily damaged building consists of limestone and marly sandstone. The and in Yogyakarta felt earthquake with MMI > Sentolo Formation spread along the lower hills VIII. The 1875 event was similar with the 1867 surrounding Progo River, east of the Mountains event, but Yogyakarta only stroke by earth- with age of Middle Miocene - Pliocene. quake with MMI = V-VII. No tsunami was re- To the east, the Southern Mountain consist ported in this event. According to Visser (1922 of: Semilir Formation that consists of tuffa- vide Husein et al., 2007) the 1867 event resulted ceous breccias, pumiceous breccias, dasitic tuff, 5 victims and 372 heavily damaged building in- andesitic tuff and tuffaceous claystone with cluding the water castle that the ruin is still ex- age of Oligo-Miocene; Nglanggran Formation ist until now. In 1943, it was earthquake that that consist of andesitic breccias, agglomer- resulted in Bantul regency, 31 victims, 564 in- ate, lava and tuff of Early Miocene; Sambip- juries, and 2.682 damaged building (van Bem- itu Formation that consists of tuff, shale, silt- melen, 1949). stone, sandstone and conglomerate of Middle The increase number of victims and damage Miocene; Wonosari Formation that consists of building is showing ignorance of people to the coral limestone, calcarenite and tuffaceous cal- impact of the earthquakes, it is also means that carenite with Early Miocene - Pliocene in age; people ignore the geology of the area and it ig- Kepek Formation that consists of marl and bed- nore the environment where they live in. Based ded limestone of Pliocene in age. on this fact the Geological Engineering Depart- Yogyakarta depression is mostly covered by ment, Faculty of Engineering, Gadjah Mada Young Merapi sediments that consist of tuff, University would like to mitigate earthquake volcanic ash, breccias, agglomerate and lava in order to minimize the victim together with with Quaternary in age. The thickness of this other disciplines (Karnawati et al., 2007a), start- sediment is up to 100 m (Hendrayana, 1993). c 2009 Department of Geological Engineering, Gadjah Mada University 33 PRAMUMIJOYO River and coastal sediments consist of gravel, tion. Liquefaction can be found at Berbah and sand, silt, and clay with age of Holocene (Ra- Imogiri (Eastern Bantul Regency) and was re- hardjo et al., 1995). ported also at Gantiwarno. Dry digging well is The Quaternary sediment is loose sediments also found, due to liquefaction. comparing to the “bed rock”, sediment up to The earthquake and its aftershock can make Pliocene age. In theory, when surface seismic a rock fall along the escarpment west and north wave pass trough a loose sediment its velocity of Southern Mountain. At Sengir, Prambanan, it should be decrease but its amplitude should be can be found subsidence along 150 m and 25 m increase so that the building on the loose sedi- wide (Karnawati, 2007). At Cermai cave, beside ment should be more shaking than on the base- toppling on its escarpment is also cracking in ment. side the cave (Yudistira , 2007). On the geological map of Yogyakarta quad- Based on BMG announcement on local news- rangle it is a fault system at the border east paper, aftershocks distribution clustered along of depression, that is striking NNE-SSW Kali the Opak River, but according to the result of Opak sub surface fault system. This fault was Kyushu University, Japan, the aftershocks was interpreted from its gravity pattern (Untung et spreading along NNE-SSW line, approximately al., 1973). On the seimotectonic map (Kerta- 10 km to the east of Opak River (Fukuoka et al., pati et al., 1992), this fault is an active fault in prep). but without its kinematics. The fault system On the Southern Mountain, at Ngalang River that was interpreted by Rahardjo et al. (1995), there is ground water level drops that made the was completed by Sudarno (1997). On the de- digging well become dried. This phenomenon pression of Yogyakarta, McDonald (1985, vide is different from those of liquefaction. We be- Hendrayana, 1993) by its bore hole and geo- lieve that there is also change of ground water electricity, interpreted some subsurface faults content, but unfortunately after earthquake the striking N-S and E-W.
Load more

Recommended publications
  • Download This Article in PDF Format
    E3S Web of Conferences 232, 02027 (2021) https://doi.org/10.1051/e3sconf/202123202027 IConARD 2020 Agritourism Development Model Based on Local Wisdom in Karangtengah Village Imogiri Bantul DIY Sriyadi1,*, Eni Istiyanti1 1 Department of Agribusiness, Faculty of Agriculture, UMY, Indonesia Abstract. This study aims to explain the agritourism development model strategy based on local wisdom in Karangtengah Village. The research was conducted by interviewing farmers and related parties and the field observation. The results showed that the development of local-wisdom based agritourism required a proper planning and master plan, optimization of the potential owned, cooperation with various parties (private, government and community), education training on tourism to managers and communities, and overall socialization to the community based on community empowerment. It is recommended to optimize the existing potential in cooperation with various parties from the government, the private sector, and universities. 1 Introduction Sustainable development is a process covering the economic dimension, social, cultural, and ecology-environment. This process is considered as the whole coverage for the development both in urban and rural areas. However, in most developing countries, the rural population decreases, while land farming begins to lose productivity. These circumstances become a significant factor in the increase in rural poverty, and causing problems such as loss of deforestation, erosion, and productivity, along with the misuse of natural resources. On the other hand, the damage of natural resources causes an issue, such as migration, poverty, and extreme food [1]. The development of agriculture-based rural areas is increasingly encouraged in various regions. This activity aims to develop the potential in rural areas, which, over some time, had previously experienced inequality in regional development.
    [Show full text]
  • Chapter 4 Research Findings
    CHAPTER 4 RESEARCH FINDINGS 4.1. Research Location Description This research describe the implementation of SISKEUDES in Panggungharjo village. This village located in Bantul Regency, one of five regency in Yogyakarta province. 4.1.1. Bantul Regency Geographic Description Bantul Regency located in the south side of Yogyakarta Province. Geographically bantul located in between 1100 12’34’’ and 1100 31’ 08’’ East Longitude and between 70 44’04’’ and 80 00’27’’ South Latitude of Greenwich. Bantul directly contiguous with: East : Gunung Kidul District West : Kulon Progo Dristrict North : Yogyakarta and Sleman District South : Indian Ocean 29 Furthermore, Bantul regency has six main rivers flow through the area. Those rivers used for many purposes, for instance used irrigate the agricultural sector. Rivers in Bantul Regency are mentioned below: Oyo River : 35.75 Km Opak River : 19.00 Km Progo River : 24.00 Km Bedog River : 9.50 Km Code River : 7.00 Km Winongo River : 18.75 Km Figure 4.1. Bantul Regency Maps (Source: bantulkab.bps.go.id, Retrieved March 20, 2019) 30 Bantul regency consist of 17 sub-district and in total Bantul has 50.685 Hectare of area. Furthermore, the area detail of those 17 sub-district explained in figure 4.2 below. Table 4.1. Bantul Regency Area Distribution Sub-district Area Percentage Number (Ha) of Villages 1. Srandakan 1,832 3.61 2 2. Sanden 2,316 4.57 4 3. Kretek 2,677 5.28 5 4. Pundong 2,368 4.67 3 5. Bambanglipuro 2,269 4.49 3 6. Pandak 2,447 4.79 4 7.
    [Show full text]
  • The Governance of Sultan Ground Land Position and Pakualaman Ground In
    International Journal of Business, Economics and Law, Vol. 24, Issue 2 (April) ISSN 2289-1552 2021 THE GOVERNANCE OF SULTAN GROUND LAND POSITION AND PAKUALAMAN GROUND IN THE FRAMEWORK OF NATIONAL LAW AND THE SPECIAL LAW OF YOGYAKARTA SPECIAL REGION IN ACHIEVING JUSTICE Dwinanta Nugroho Anis Mashdurohatun Gunarto ABSTRACT One of the sovereignties of the Special Region of Yogyakarta is manifested in recognition of the privileged authority outlined in Law No. 13 of 2012 concerning the Privileges of Yogyakarta Special Region. The exercise of authority in terms of privileges is based on local wisdom values and favors the community. The authority of Yogyakarta Special Region as an Autonomous Region covers the authority in the Yogyakarta Special Region Regional Government's affairs as referred to in the Law on Regional Government and the special functions regulated in the special law. This study aims to analyze, study and formulate the governance of the land position of the sultan's ground and the nail in the ground within the framework of the national law and the special laws of Yogyakarta Special Region in realizing justice. This research was conducted by using normative legal research methods, namely by comparing the prevailing laws and related issues, then with existing legal principles or doctrines, and paying attention to the practices that occur as a study of legal history. This research found that the authority over the management and utilization of Sultan Ground Pakualaman Grounds (SG-PAG's) land often collided with the Sultanate's meaning, and the Duchy limited to the 'palace' only. The community's participation in planning, utilization, and control was still lacking, even though the term Sultanate -Duchy has a legal meaning, including all the components in it, namely the flag, servant (punggawa/abdi dalem), and community (kawula dalem).
    [Show full text]
  • The Influence of Cultural Tourism in the Imogiri Tomb Bantul, Yogyakarta
    International Journal of Advances in Mechanical and Civil Engineering, ISSN: 2394-2827 Volume-7, Issue-1, Feb.-2020 http://iraj.in THE INFLUENCE OF CULTURAL TOURISM IN THE IMOGIRI TOMB BANTUL, YOGYAKARTA 1DITA AYU RANI NATALIA, 2ENDY MARLINA 1,2Department of Architecture University of Technology Yogyakarta E-mail: [email protected], [email protected] Abstract - The development of cultural tourism would affect the development of tourism activities. The Imogiri Tomb is a place that symbolizes religion for the Mataram Kingdom. The expansion in the masjid located in the Imogiri Tomb occurred due to the use of rooms for the community in practicing cultural and religious tourism. The cultural tradition managed regularly was developed by the addition of cultural and art traditions that performed one day before the main event. The influence of tourism gave impact to the changes in the buildings and cultural traditions done by the community. This paper discusses the influence of cultural tourism towards the buildings and community traditions in the Imogiri Tomb, Bantul Regency, Yogyakarta. Keywords - Cultural Tourism, Imogiri Tomb, Bantul I. INTRODUCTION The development of cultural tourism in Yogyakarta affects in some changes in the area and facility As an Islamic kingdom, Kraton Yogyakarta has enhancement including in Imogiri Tomb area. essential attributes that are related to religion such as Cultural tourism becomes economic and financial masjid and tomb. As the existences of masjid and commodities. Following Boissevain (1996) in Holden tomb are important for the Javanese royal power, (2006:141), culture has become the main commodity hence the procedures for joint management of holy in the tourism industry.
    [Show full text]
  • Call for Student Participants on International Summer Course on Imogiri Saujana Heritage, Yogyakarta, Indonesia
    H-Asia Call for Student Participants on International Summer Course on Imogiri Saujana Heritage, Yogyakarta, Indonesia Discussion published by Laretna T. Adishakti on Saturday, September 3, 2016 Ed. note: This annoucement was published at H-Announce on Sept. 2nd, 2016, while its deadline is on Sept. 3rd, 2016. Although it may be a typo or may have already been extended, we encourage our interested members to consult the author for the availability of the program. Type: Summer Program Date: October 6, 2016 to October 19, 2016 Location: Indonesia Subject Fields: Architecture and Architectural History, Art, Art History & Visual Studies, Fine Arts, Historic Preservation, Urban Design and Planning Center for Heritage Conservation DEPARTMENT OF ARCHITECTURE AND PLANNING FACULTY OF ENGINEERING UNIVERSITAS GADJAH MADA YOGYAKARTA, INDONESIA FIRST ANNOUNCEMENT CALL FOR PARTICIPANTS INTERNATIONAL SUMMER COURSE ON IMOGIRI SAUJANA HERITAGE Theme: PARTICIPATORY PLANNING AND DESIGN FOR BATIK ECO-MUSEUM October 6-19, 2016 Citation: Laretna T. Adishakti. Call for Student Participants on International Summer Course on Imogiri Saujana Heritage, Yogyakarta, Indonesia. H-Asia. 09-03-2016. https://networks.h-net.org/node/22055/discussions/142232/call-student-participants-international-summer-course-imogiri Licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License. 1 H-Asia INTRODUCTION Saujana heritage or cultural landscape heritage is the inextricable unity between nature and manmade heritage in space and time, or the variety of interactive manifestation between manmade heritage and natural environment. The interaction of nature and culture has become a new perspective in global discourse of sciences especially those which concern with heritage conservation started in the end of the 80’s.
    [Show full text]
  • The Chromium Concentration Downstream of the Opak River, Yogyakarta, Indonesia 1Djoko Rahardjo, 2Djumanto, 1Windu S
    The chromium concentration downstream of the Opak River, Yogyakarta, Indonesia 1Djoko Rahardjo, 2Djumanto, 1Windu S. Manusiwa, 1Aniek Prasetyaningsih 1 Faculty of Biotechnology, Duta Wacana Christian University, Jl. Dr. Wahidin Sudirohusodo, Yogyakarta, Indonesia; 2 Department of Fisheries, Faculty of Agriculture, Gadjah Mada University, Yogyakarta, Indonesia. Corresponding author: Djumanto, [email protected] Abstract. The ecological, biological and economical role of the Opak River's downstream is crucial for the people in the Bantul Regency area. Several home leather industries use the Opak River to dispose liquid waste, affecting water quality and aquatic biota. This study aimed to determine the concentration of chromium (Cr) in the Opak River ecosystem and fish. Sampling was carried out in February, April, and July 2020, in six locations, covering water, sediment and fish samples. The Cr concentration was measured for each sample using the atomic absorption spectrometer (AAS) method. The highest Cr concentration was found in Osteochilus vittatus (0.8489 mg kg-1), followed by the sediment samples (0.7125 mg kg-1), Oreochromis niloticus (0.3799 mg kg-1) and the water samples (0.01889 mg kg-1). The concentration of chromium in fish is still below the toxicity threshold for the biota and environmental health. The chromium concentration tends to increase according to the trophic level. Key Words: home industry, heavy metals, liquid waste. Introduction. Opak River is one of the rivers located in the east of the Yogyakarta Special Region, which has a flow length of approximately 65 km and a river basin area of 1,398.18 km2. The upstream part of the Opak River is located on the slopes of Mount Merapi in Cangkringan District, Sleman Regency.
    [Show full text]
  • Chapter 14 Future Water Resources
    CHAPTER 14 FUTURE WATER RESOURCES CHAPTER 14 FUTURE WATER RESOURCES 14.1 Groundwater Resources 14.1.1 Geophysical Exploration for Evaluating Groundwater Resources Geophysical exploration was carried out for evaluating groundwater resources in the study area and also for assisting to delineate promising areas for drilling and taking water from springs. This survey consists of VES (Vertical Electrical Sounding) survey and 2D Imaging (Two Dimensional Resistivity Imaging) survey. VES measurements were conducted at the area supposed that deep wells will be drilled for future water supply and 2D measurements were carried out at the area for drilling shallow wells or taking water from springs. (1) Location of Geophysical Exploration Preparatory for the geophysical exploration, hydrogeologist of this study consulted with the persons in charge of water supply for the study area and selected the 80 survey points in consideration of their priority. 60 points in 3 districts (Sleman Regency, Yogyakarta Municipality and Bantul Regency) for VES survey and 20 in Sleman Regency for 2D imaging survey were selected. Figure 14.1.3 shows the locations of VES points and Figure 14.1.4 shows those of 2D imaging. The area name (Dusun, Desa and Kecamatan) and coordinates of measurement points are listed in Table 14.1.1 to 14.1.5. (2) Method of Survey VES method uses Schlumberger configuration, and 2D Imaging method uses Dipole-Dipole configuration. VES method has been usually used for groundwater exploration, and is useful to investigate simple hydrogeological structure or horizontal layers parallel with the flat ground surface. 2D imaging is relatively new technological method and can draw cross section of specific resistivity.
    [Show full text]
  • Evaluation of Waste Management in Piyungan Landfill, Bantul Regency, Yogyakarta, Indonesia
    MATEC Web of Conferences 280, 05018 (2019) https://doi.org/10.1051/matecconf /20192800 5018 ICSBE 2018 Evaluation of Waste Management in Piyungan Landfill, Bantul Regency, Yogyakarta, Indonesia Safira Firda Ariyani1, Hijrah Purnama Putra2,*, Kasam1, Enri Damanhuri3, and Emenda Sembiring3 1 Dept of Environmental Engineering, FTSP Universitas Islam Indonesia, Jalan Kaliurang km 14,5 Sleman, Yogyakarta 55584, Indonesia. 2 Dept of Environmental Engineering, FTSP Universitas Islam Indonesia, Jalan Kaliurang km 14,5 Sleman, Yogyakarta 55584, Indonesia. Doctoral Student in Environmental Engineering Dept, FTSL, Institut Teknologi Bandung 3 Dept of Environmental Engineering, FTSL Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia Abstract. The municipal solid waste management system collects waste from the source to the final treatment site called landfill. The Yogyakarta Special Province has several landfills, one of which is Piyungan landfill, which serves three administrative areas, Yogyakarta City, Sleman and Bantul Regency. As a regional landfill, Piyungan has an area of 12.5 ha with 3 working zones, operationalized since 1995, estimated with the operational time 20 years. So that 2015 should landfill have been closed, but due to the degradation of waste until 2018 landfill is still used. Therefore, an evaluation mechanism is needed to show the existing condition in the field. Using the checklist method, using questionnaires and interviews and utilizing other secondary data. This method consists of five parts and has an assessment criteria in each component obtained assessment of facilities and infrastructure facilities of 2.25 (good category), while 1.68 for operational technical aspects (very good category). Overall Piyungan landfill evaluation scored 1.96 (good category).
    [Show full text]
  • Business Development Model of Integrated Agribusiness in Dryland Areas of Yogyakarta
    SUMMARY SUGIHARTO. Business Development Model of Integrated Agribusiness in Dryland Areas of Yogyakarta. Supervised by ENDANG GUMBIRA-SA’ID, HENY K DARYANTO, and ARIF IMAM SUROSO. There are two major schools of thought dominating literatures relating to the population growth and agriculture. Population growth requires an increase in agricultural production that could lead to either agricultural expansion or agricultural innovation. The increase in agricultural production by way of agricultural expansion may lead to deforestation and environmental degradation, whereas increase in agricultural production by way of agricultural intensification is closely related to the development of new technology. These theories are developed into agricultural development theories that could be in the form of agricultural expansion, conservation of resources, diffusion of existing knowledge, developing high-payoff inputs, and induced innovation. Despite the need for productive agriculture lands, there are nearly abandoned marginal drylands that do not attract investors nor government due to economic reasons. Such drylands exist in Yogyakarta Province, Indonesia where 53% of the area is covered by dryland agriculture. In 2010 agriculture was the second contributor to regional gross domestic product and the only sector with negative growth of -0.27%. Among five regencies in Yogyakarta Province, agriculture was the highest contributor to the regional gross domestic product in Gunung Kidul, Kulon Progo, and Bantul Regencies. While Bantul Regency experienced positive growth in agriculture, negative growth in agriculture occured in Kulon Progo and Gunung Kidul Regenies (BAPPEDA DIY 2012a). Based on these statistical data, a pilot program was conducted in a small area of five hectares in the dryland area of Gunung Kidul Regency.
    [Show full text]
  • Redalyc.SAND DUNE CONSERVATION ASSESSMENT
    Journal of Urban and Environmental Engineering E-ISSN: 1982-3932 [email protected] Universidade Federal da Paraíba Brasil Fitria Putri, Ratih; Wibirama, Sunu; Sukamdi; Rum Giarsih, Sri SAND DUNE CONSERVATION ASSESSMENT IN COASTAL AREA USING ALOS PALSAR DInSAR TECHNIQUE Journal of Urban and Environmental Engineering, vol. 11, núm. 1, 2017, pp. 9-29 Universidade Federal da Paraíba Paraíba, Brasil Available in: http://www.redalyc.org/articulo.oa?id=283253419002 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Putri, Wibirama, Sukamdi, and Giarsih 9 Journal of Urban and Environmental Journal of Urban and E Engineering, v.11, n.1, p.9-29 Environmental Engineering ISSN 1982-3932 J E www.journal-uee.org U doi: 10.4090/juee.2014.v3n1.009029 SAND DUNE CONSERVATION ASSESSMENT IN COASTAL AREA USING ALOS PALSAR DInSAR TECHNIQUE Ratih Fitria Putri1, Sunu Wibirama2, Sukamdi1 and Sri Rum Giarsih1 1Department Geography and Environmental Science, Faculty of Geography, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia 2Department of Electrical Engineering and Information Technology, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia Received 31 October2016; received in revised form 31 January 2017; accepted 11 February 2017 Abstract: A big earthquake occurred in the southern coastal of Java on July 17th, 2006. The earthquake caused Tsunami waves in the coastal area of West Java, Central Java, and Yogyakarta. In particular the potential of Tsunami hazard in southern part of Yogyakarta Province is high.
    [Show full text]
  • Urban Vulnerability in Bantul District, Indonesia—Towards Safer and Sustainable Development
    Sustainability 2012, 4, 2022-2037; doi:10.3390/su4092022 OPEN ACCESS sustainability ISSN 2071-1050 www.mdpi.com/journal/sustainability Article Urban Vulnerability in Bantul District, Indonesia—Towards Safer and Sustainable Development Dyah R. Hizbaron 1,*, Muhammad Baiquni 2, Junun Sartohadi 1 and R. Rijanta 2 1 Department of Environmental Geography, Faculty of Geography, Gadjah Mada University—Sekip Utara, Bulaksumur, Yogyakarta 55281, Indonesia; E-Mail: [email protected] 2 Department of Regional Development, Faculty of Geography, Gadjah Mada University—Sekip Utara, Bulaksumur, Yogyakarta 55281, Indonesia; E-Mails: [email protected] (M.B.); [email protected] (R.R.) * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.:+62-274-545965; Fax: +62-274-545965. Received: 4 April 2012; in revised form: 6 July 2012 / Accepted: 16 July 2012 / Published: 30 August 2012 Abstract: Assuring safer and sustainable development in seismic prone areas requires predictive measurements, i.e., hazard, vulnerability and risk assessment. This research aims to assess urban vulnerability due to seismic hazard through a risk based spatial plan. The idea is to indicate current and future potential losses due to specified hazards with given spatial and temporal units. Herein, urban vulnerability refers to the classic separation between social and physical vulnerability assessments. The research area covers six sub-districts in Bantul, Indonesia. It experienced 6.2 Mw earthquakes on May, 27th, 2006 and suffered a death toll of 5700, economic losses of up to 3.1 billion US$ and damage to nearly 80% of a 508 km2 area. The research area experienced the following regional issues: (1) seismic hazard; (2) rapid land conversion and (3) domination of low-income group.
    [Show full text]
  • CHAPTER I INTRODUCTION 1.1 Background at the Present Time
    CHAPTER I INTRODUCTION 1.1 Background At the present time tourism is one of the important assets that can increase economic growth both on a regional and national scale. This is evidenced by the emergence of new tourist objects that have resulted in increasing numbers of tourists. The development of the tourism sector which is able to increase economic growth will affect the increase in regional income. In addition, the development of the tourism sector also has an important role in the development of a country that is able to increase foreign exchange. With the increase in regional income and foreign exchange, the state will affect the increase in public welfare. According to Law No. 10 of 2009, tourism is a variety of tourism activities and is supported by various facilities and services provided by the community, entrepreneurs, and the Regional Government. Based on the law, it can be explained that in an effort to improve the tourism sector, supporting factors are needed such as facilities and infrastructure, the role of the community that participates in managing resources, the role of employers as additional managers, and also the government as regulators to regulate management resource. The tourism sector can be developed by efforts to identify the potential of existing tourism objects. In tourism, tourism potential is an 1 element of procurement that needs to be offered to consumers (Arifianan, 2016). Indonesia has valuable natural is so great that are able to make the tourism sector one of the important assets for the government to increase foreign exchange and boost economic growth.
    [Show full text]