TSUNAMI MITIGATION EFFORTS WITH pTA IN WEST SUMATRA PROVINCE, INDONESIA

2010 ◽  
Vol 04 (04) ◽  
pp. 341-368 ◽  
Author(s):  
ABDUL MUHARI ◽  
FUMIHIKO IMAMURA ◽  
DANNY HILMAN NATAWIDJAJA ◽  
SUBANDONO DIPOSAPTONO ◽  
HAMZAH LATIEF ◽  
...  

This paper describes tsunami disaster mitigation in the West Sumatra region with participatory technology assessment (pTA), which promotes direct interaction among member and experts to discuss issues and reach consensus for mitigation through provision of information and knowledge of science and technology. Two areas were examined: Padang, the capital city; and Painan city, a town in southern West Sumatra Province, Indonesia. Tsunami have damaged these areas at least three times: in 1797, a 5–10-m-high tsunami wave height hit the area; in 1833, a 3–4-m-high tsunami came; and in 2007, an 8.4 Mw earthquake generated a local tsunami with maximum wave height of 1.5 m, as observed near Painan. Because of the high level of tsunami risk resulting from its flat topographic conditions, their respective populations of 820,000 people and 15,000 people are developing tsunami mitigation efforts with support of national institutions and international experts. These cities had different starting points and approaches. Efforts were introduced to produce official tsunami hazards maps. Insights from these lessons and ideas arising from the ongoing process after the 2007 South Sumatra and 2009 Padang earthquakes are discussed herein.

2021 ◽  
Vol 4 (1) ◽  
pp. 61
Author(s):  
Muchsin Riviwanto ◽  
Darwel Darwel ◽  
Defriani Dwiyanti ◽  
Juanda Juanda

Disability groups are groups vulnerable to disaster risk. Most families with disabilities feel worried about defending themselves in the event of a disaster. They are less socialized with disaster mitigation efforts. This research has provided an overview of the preparedness of families with disabilities children in increasing disaster resilience. Analytical research was conducted on families with disabilities children in the city of Padang. Data collection tools in this study used a standard questionnaire from LIPI-UNESCO / ISDR. The data were processed by a computer and analyzed using multiple regression statistical tests. The results showed the preparedness of Families With Disabilities Children in the face of disasters; it was seen that the knowledge category was ready (42.2%), the preparedness plan category was not ready (37.8%), the disaster warning category was not ready (46.7%), the resource mobilization category was not ready, ready (82.2%), the tsunami disaster preparedness index value is 57% (ready category). This research recommended local governments must provide special treatment for people with disabilities by increasing training, seminars, and disaster simulations.


2021 ◽  
Vol 331 ◽  
pp. 07016
Author(s):  
Fauzan Fauzan ◽  
Khin Thu Zar Htay ◽  
Zawil Huda ◽  
Hafiz Oktaufik ◽  
Geby Aryo Agista

West Sumatra Province is one of the provinces in Indonesia that is vulnerable to natural disasters, especially earthquakes and tsunamis. Padang city, as the capital city of West Sumatra, is an area that is included in an area with a high level of vulnerability (High Risk Zone) to tsunamis. Therefore, the construction of public buildings such as hospitals, government offices, and school buildings must have certain technical engineering that is able to anticipate the damage and collapse of buildings due to the earthquake and tsunami. One of the public buildings as an educational facility in Padang city is the Elementary School building of the 23/24 (SD 23/24 Padang), located close to the beach. Based on the evaluation results of the Detail Engineering Design (DED) documents, it is found that this building was designed without taking into account the tsunami loads. Therefore, a building assessment should be carried out to check the capacity of the building to resist the working loads, including the tsunami loads, and to investigate the effect of the tsunami loads on the SD 23/24 Padang building. In this study, the building was analyzed using ETABS v.18 software based on the new Indonesian Seismic Code, SNI 1726-2019 for seismic load and FEMA P646-2019 for calculating tsunami loads. The results show that the SD 23/24 Padang building is strong against earthquake loads, but it doesn’t have enough capacity when tsunami loads are applied, in which there are several structural elements (columns/beams) that do not have sufficient capacity to withstand the combined earthquake and tsunami loads. The effect of tsunami loads on the building structure is also discussed in this paper.


2020 ◽  
Vol 12 (2) ◽  
pp. 41-53
Author(s):  
Mochammad Azkari Hisbulloh Akbar ◽  
Faisol Abdul Kharis ◽  
Oktavia Putri Rahmawati

The coastal areas are vulnerable areas to disaster threats, especially the geological hazards of earthquakes accompanied by tsunamis. Palu City, which is located on the west coast of Sulawesi, experienced a natural disaster of an earthquake, tsunami, and liquefaction on September 28, 2018. Based on the Map of Disaster Prone Index in Central Sulawesi Province, Palu City is a tsunami-prone area that is crossed by the Palu-Koro Fault. Tsunami disaster mitigation efforts in coastal areas can be done by planting mangrove ecosystems as a green barrier. The purpose of this study is to analyze the characteristics of the coastal landscape in Palu City and plan the landscape of tsunami mitigation based on mangrove ecosystems in Palu City. The method used spatial analysis method and descriptive method, as well as the research stage, consists of preparation, data analysis, data synthesis, and landscape planning stage. The basic concept of tsunami mitigation landscape planning is to reduce or eliminate disaster risk in coastal areas based on mangrove ecosystems. The concept of spatial pattern concept consists of high hazard zones, medium hazard zones, and low hazard zones. The concept of vegetation refers to the diversity of mangrove and native plant species as green open spaces and green barriers.


2014 ◽  
Vol 9 (6) ◽  
pp. 915-915 ◽  
Author(s):  
Fumio Yamazaki ◽  
Carlos Zavala ◽  
Miguel Estrada

With the greatest pleasure, we present the second special issue of the Journal of Disaster Research (JDR), entitled Enhancement of Earthquake and Tsunami Disaster Mitigation Technology in Peru. This follows the first special issue on the same theme. These special issues contain 36 articles, 15 in the first and 21 in the second. They summarize research output from the SATREPS Peru project. SATREPS is an international research program sponsored by the Japan Science and Technology Agency (JST) and the Japan International Cooperation Agency (JICA). As a SATREPS project on natural disaster mitigation, our 5-year Peru project began in March 2010 with the purpose of enhancing and implementing earthquake and tsunami disaster-mitigation technology in Peru. The joint research project provides good opportunities for Peruvian and Japanese researchers and engineers to work together exchanging opinions on their common goal of reducing loss from earthquakes and tsunamis. Within the project period, CISMID was designated as a government agency in charge of disaster-mitigation activities. Project outcomes have been introduced in national design codes and in guidelines on earthquake and tsunami risk evaluation in Peru. Our project has drawn great attention among members of Peruvian society. It has attracted hundreds of participants and scores of mass media through public seminars and symposia. We expect the project to be sustained through public awareness and dissemination activities by Peruvian organizations. We hope this special issue will provide useful information to seismic-prone Asia-Pacific countries, especially Latin America. In closing, we sincerely thank the contributors and reviewers who have done so much to make the articles in this special issue both interesting and valuable.


Author(s):  
Iqoh Faiqoh ◽  
Jason Lumban Gaol ◽  
Marisa Mei Ling

Indonesia is located in a seismic active region where tsunami often occur. One of tsunami prone areas in Indonesia is southern coast of Java, such as the coastal areas of Pangandaran, West Java. One of the instruments in the tsunami disaster mitigation is the vulnerability map of coastal region on tsunami. Analyses of tsunami vulnerability assessment was performed by using merger or overlay methods in Geographic Information Systems (GIS). The parameters used to analyze tsunami vulnerability level were elevation, topography, landuse, coastal border, and river banks. The vulnerability were divided into five classes i.e., very high, high, medium, low, and very low. Results showed that Pananjung, Babakan, Pangandaran (Pangandaran District); and Sukaresik and Cikembulan (Sidamulih District) sub-districts were identified as areas of very high level of tsunami vulnerability with total area of 737.703 hectares. Areas with low level of vulnerability were Pagergunung, Putrapinggan, and Kersaratu sub-districts with total area of 4,816.204 hectares.


2021 ◽  
Vol 925 (1) ◽  
pp. 012037
Author(s):  
Martha Alvianingsih ◽  
Willy Ivander Pradipta ◽  
Intan Hayatiningsih ◽  
Nuraini Rahma Hanifa

Abstract Pangandaran and Pananjung villages are located in the southern coast of Java Island, prone to tsunami hazard originating from a megathrust earthquake off south of Java Island. Those villages experience a tsunami earthquake on 2006 from an M7.8 earthquake. The National Center for Earthquake Studies released a map of the sources and hazards of Indonesia’s earthquake in 2017 with a potential earthquake of magnitude 8.7-9.2 in the megathrust of Java Island. This research aims to estimate the potential number of buildings and the population affected by tsunami inundation from two scenario; first scenario is based on historical event of a M7.8 intraplate earthquake, and second scenario is based on a plausible M8.7 intraplate earthquake. The first scenario tsunami modeling resulted an inundation of 108.606 ha, while in the second scenario estimate an 867.351 ha of inundation area. Building data is obtained by digitizing aerial photographs taken in November 2021. The calculation of potential affected buildings is carried out by overlaying the tsunami inundation data with the existing building data in the study area. Meanwhile, the population data used is obtained from the local government in 2021. To obtain the number of the affected population, population distribution is first carried out in each class of land cover, overlaid with the tsunami inundation data. The estimated number of buildings and population affected by scenario 1 and 2 in Pangandaran Village is 1,040 buildings along with 2,765 people, and 4,216 buildings with 11,209 people respectively. While in Pananjung Village, it is estimated a total of 149 buildings with 350 people affected, and 4,039 buildings with 9,493 people affected respectively. This indicate that scenario 2 impact is potentially 4 times greater than scenario 1 in Pangandaran village, and 27 times greater in Pananjung village, implying a different strategy of tsunami risk reduction should be taken to save more lives. The results of this study can be used as a basis for policymaking by the government in carrying out a more effective tsunami disaster mitigation efforts in Pangandaran and Pananjung Villages. This study also calls for reevaluation of coastal villages tsunami risk based on each plausible scenario.


2021 ◽  
Vol 27 (1) ◽  
pp. 29-40
Author(s):  
Radianta Triatmadja ◽  
Warniyati Warniyati

Many coastal structures or structures in coastal areas were destroyed by a tsunami attack. Such destructions were due primarily to the fact that such structures were not designed to withstand a tsunami. Those which were designed to withstand tsunami force may also have been destroyed due to some damaging factors which were not included in the design. The damage of the coastal structures is one of the important factors that have caused casualties. Especially, when the destroyed structures were originally aimed to mitigate the area against tsunami, they may cause higher fatalities. Examples of such structures are sea walls in many parts of Japan which were destroyed by the 2011 tsunami. This paper discusses the important factors relevant to the damage of seawall as tsunami mitigation structure such as impact force due to tsunami front, hydrostatic force, and hydrodynamic force, debris force and scour due tsunami. The study was carried out based on literature about the damages of seawall as tsunami protection structures and laboratory experiment reports. The destructions to the structures were divided into three classifications namely instantaneous direct destruction due to impact and drag forces, slowly direct destruction due to drag force, and slowly indirect destruction due to scour. Finally, important aspects to be considered in the design of seawall as tsunamis protection were proposed.


2020 ◽  
Vol 7 (2) ◽  
pp. 210
Author(s):  
Deny Budiyanto ◽  
Trisya Septiana ◽  
Mona Arif Muda

<p><em>Lampung Province, which is located in the southernmost region of the island of Sumatra, is also a disaster-prone region, such as the tsunami and eruption of Mount Anak Krakatau that occurred in 2018 which resulted in casualties and property losses, because Lampung Province is an area with a dense population. One of the disasters that threatened the Lampung province was the Tsunami. The threat occurs because Lampung Province is located in an area bordering the Sunda Strait, and the Indian Ocean so there is a potential for disaster in this region. The purpose of this study is to carry out a part of disaster mitigation namely disaster risk analysis using Geographic Information Systems (GIS). The mapping of tsunami risk level was made in the form of tsunami disaster-prone zones and evacuation routes, and this mapping has been carried out in the coastal area of South Lampung, Lampung Province.</em></p><p><strong><em>Keywords</em></strong><em> : Information Systems, GIS, Sumatra, South Lampung</em><strong><em> </em></strong></p><p><em>Provinsi Lampung yang terletak diwilayah paling selatan pulau Sumatera juga  merupakan daerah yang rentan bencana, seperti kejadian tsunami dan erupsi gunung anak Krakatau yang terjadi pada 2018 yang mengakibatkan korban jiwa dan kerugian harta benda, Karena Provinsi Lampung adalah wilayah dengan jumlah penduduk yang padat. Salah satu bencana yang mengancam provinsi lampung adalah Tsunami. Ancaman terjadi karena Provinsi Lampung terletak di wilayah yang berbatasan dengan Selat Sunda, dan Samudra Hindia sehingga ada potensi bencana di wilayah ini. Tujuan dari penelitian ini adalah melakukan bagian mitigasi bencana yaitu analisis resiko bencana dengan menggunakan Sistem Informasi Geografis (SIG). Pemetaan tingkat resiko tsunami ini dibuat dalam bentuk zona-zona rawan bencana tsunami serta jalur evakuasi, dan pemetaan ini telah dilakukan pada daerah pesisir Lampung Selatan, Provinsi Lampung.</em></p><p><strong><em>Kata kunci</em></strong><em> : Sistem Informasi, SIG, Sumatera, Lampung Selatan</em></p>


Author(s):  
SLAMET MARDIYANTO RAHAYU ◽  
ARISTA SUCI ANDINI

Serenting Beach is one of the beaches in the Mandalika Special Economic Zone (MSEZ), Central Lombok Regency. The MSEZ is located in the southern part of Lombok Island and faces the Indian Ocean. The Mandalika Special Economic Zone is prospected to expedite the sector of tourism at Province of West Nusa Tenggara which is very potential. A few hundred kilometers to the south part of Lombok Island is one of the large tectonic plates meeting zones which is a major source of potential tsunami earthquakes. With the geological conditions of Lombok Island which is prone to tsunamis and the existence of environmental degradation in Serenting Beach, MSEZ, it is necessary to conduct research about study of tsunami mitigation based on vegetation in Serenting Beach, MSEZ, Lombok Island. Based on the research, there are several types of plants that need to be planted as a tsunami disaster mitigation effort in Serenting Beach, MSEZ, namely: Casuarina equisetifolia, Pandanus odoratissimus, Cocos nucifera, Hibiscus tiliaceus, and Terminalia catappa. The government and various related parties need to provide education to the public, tourism managers, and tourists to take an active role in protecting vegetation and not through illegal logging.


2020 ◽  
Vol 4 (1) ◽  
pp. 87-99
Author(s):  
Dian Agustina ◽  
Etis Sunandi ◽  
Sigit Nugroho

The first objective of this activity is to increase knowledge and understanding of the rescue procedures, evacuation routes, and emergency response plans when a large earthquake occurs. The second objective is to increase the knowledge and ability to mobilize available resources. With this knowledge and capability, the community can choose and sort out the resources that must be prioritized, so that losses can be reduced as little as possible. Referring to the results of the study, reducing the impact of earthquake and tsunami disaster risk is greatly influenced by emergency response plan factors, disaster warning system factors, knowledge factors, policy and guidance factors, and the ability of team mobilization. The conclusion obtained from the results of this activity is that the Air Rami Sub-district community gained increased knowledge and understanding of earthquake and tsunami mitigation. This can be seen from the enthusiasm of stakeholders and the public in participating in socialization activities. It is also supported by the Wilcoxon statistical test, the result showed that socialization increases public knowledge in understanding disaster mitigation, especially earthquakes and tsunamis.


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