scholarly journals PENGELOMPOKAN KEJADIAN GEMPA BUMI MENGGUNAKAN FUZZY C-MEANS CLUSTERING

2019 ◽  
Vol 4 (2) ◽  
pp. 103-110
Author(s):  
Ryan Rifqi Arista ◽  
Rosa Andrie Asmara ◽  
Dwi Puspitasari
Keyword(s):  
Eurasian Plate ◽  
Tectonic Plates ◽  
Fuzzy C Means ◽  
Australian Plate ◽  
The Pacific ◽  
Earthquake Vulnerability ◽  
Fuzzy C Means Clustering ◽  
Grouping Systems ◽  
Two Parameters ◽  
High Level

The Indonesian region has a high level of earthquake vulnerability when compared to other countries. This is because Indonesia's position is at the confluence of three large tectonic plates namely the Eurasian plate, the Indo-Australian plate, and the Pacific plate. The high level of earthquake susceptibility is evidenced by significant earthquake data from 2005 to 2009, which recorded 26 significant earthquakes over a period of 4.8 to 8.6 on the Richter scale. The earthquake also caused impacts including casualties, injuries, damage to houses and destruction of houses.The earthquake event grouping system is a system that functions to classify earthquake events based on two main parameters, namely earthquake strength parameters and earthquake impact parameters. The two parameters are grouped separately, so that the grouping process produces two kinds of grouping results. The stages of this system start from preprocessing data to eliminate noise, then take grouping parameters from the user in the form of the number of clusters, minimum error values, and the maximum iteration limit. Grouping is done using fuzzy c-means method. The grouping results are then displayed in table form and in the form of coordinates in Google Maps.The grouping of earthquake events has been tested by comparing the results of grouping systems with the results of manual grouping. Testing is done by inputting a number of different maximum iterations. Based on the test results it was found that the greater the maximum iteration value will affect the accuracy of grouping.

Information System for Determining Earthquake and Tsunami Evacuation Paths in Bengkulu City Based on Android

2019 ◽  
Vol 16 (12) ◽  
pp. 5180-5185
Author(s):  
Yulia Darmi ◽  
Busono Soerowirdjo ◽  
Ery Prasetyo Wibowo ◽  
Ernastuti
Keyword(s):  
Information System ◽  
Disaster Preparedness ◽  
Eurasian Plate ◽  
Tectonic Plates ◽  
Tsunami Disaster ◽  
Indonesian Archipelago ◽  
Australian Plate ◽  
The Pacific ◽  
Evacuation Route ◽  
The City

Facility of directions to the evacuation places in the city of Bengkulu is very minimal, so that people are very difficult to find an efficient route to the evacuation places. The problem is how to determine the evacuation route/gathering point. Indonesia is prone to earthquakes because logically, the Indonesian archipelago is at the confluence of three tectonic plates: the Eurasian plate, the Australian plate and the Pacific plate. In the event of an earthquake and tsunami disaster, if disaster preparedness is not prepared, it will cause damage to buildings, offices and can result in fatalities such as the events in Nangro Aceh Darussalam. Therefore, we need a system that can help overcome this disaster management. The system that can be made is the Information System for Determining Earthquake and Tsunami Evacuation Paths in the city of Bengkulu Using Android. By using Android, it will be easier for people to imitate an evacuation route or place during an earthquake and tsunami.

scholarly journals Perilaku Gedung Dengan Perbedaan Kekakuan Antar Lantai

2019 ◽  
Vol 8 (1) ◽  
pp. 1-9
Author(s):  
Tommy Iduwin ◽  
Dicki Dian Purnama
Keyword(s):  
Eurasian Plate ◽  
Soft Storey ◽  
Soft Story ◽  
Building Models ◽  
Australian Plate ◽  
Richter Scale ◽  
Response Dynamic ◽  
The Pacific ◽  
High Level ◽  
Spectrum Response

Abstract Earthquake is one of the most frequent disasters in Indonesia. This is due to the location of Indonesia which is located between 3 active plates, namely the Pacific Plate, the Indo-Australian Plate and the Eurasian Plate. While from 2018 to date the biggest and worst earthquake in the Lombok Earthquake that occurred with magnitude reached 7 on the Richter Scale and hammer earthquakes with magnitude 7.4 on the Richter Scale. One of the frequent failures caused by the earthquake is the soft store. Soft story mainly occurs in office buildings, hotels or apartments which generally have a lobby or area that is intentionally made without walls / dividers, either on the ground floor or the upper floors so that inter-floor fuss will be different. In designing and modeling structures, buildings are generally designed with open frame type port without walls. The height of the column can also cause a difference between different floors. This study will compare between the wallless portal model with a higher level at the bottom of the building, the middle of the building and the top of the building, where a high level with smaller stiffness has the potential to be soft (soft story). In this study using ETABS 9.7.2 program with spectrum response dynamic load based on the 2017 earthquake map. Results The structure period of the results of the analysis with the program in the crack cross section condition was obtained at 2.01 seconds. The shape mode for the three PPKBB, PKBT and PKBA building types has met the requirements where in shape 1 and 2 building models are translating towards the x or y axis while in shape 3 mode they are twisted. The required mass participation ratio value is reached at the 90% percentage reached at the 8th shape mode for the PKBB and PKBT buildings. While for PKBA it is reached in the 5th shape mode. Deviation values ​​for the three types of building PKBB, PKBT and PKBA are still within the permit limit. Keywords: earthquake, soft storey, spectrum response

EDUKASI DAN MITIGASI GEMPA PADA BANGUNAN

2021 ◽  
pp. 417
Author(s):  
Daniel Christianto ◽  
Sunarjo Leman ◽  
Alvira Nathania Tanika ◽  
Maria Kevinia Sutanto ◽  
Vryscilia Marcella
Keyword(s):  
General Information ◽  
Physical Contact ◽  
Eurasian Plate ◽  
Earthquake Mitigation ◽  
Natural Event ◽  
Australian Plate ◽  
The Pacific ◽  
Prone Area ◽  
Tectonic Earthquakes ◽  
The Impact

A natural disaster is a natural event that has a major impact on the human population. One of the natural events that became the focus of this PKM activity was an earthquake. Earthquakes are natural events in the form of vibrations or wavy movements on the earth's crust caused by internal forces. Earthquakes caused by shifting of the ground are called tectonic earthquakes and earthquakes caused by volcanoes are called volcanic earthquakes. Indonesia is an earthquake-prone area because it is located on three plates, namely the Eurasian Plate, the Pacific Plate, and the Indo-Australian Plate. Only in western, central and southern Kalimantan, the source of the earthquake was not found. To reduce the impact of risk during an earthquake, it is necessary to carry out an earthquake mitigation to the community in areas prone to earthquakes. Earthquake mitigation that will be carried out in this PKM activity is in the form of counseling through online webinars to prevent physical contact or crowds, related to the Covid19 pandemic. As a result, from the questions asked by participants, there is still a lack of understanding of the dangers of changing the function of the building or the building's use limit based on the design load and the condition of the building after the earthquake. So for the next PKM, it is recommended to make general information guidelines such as examples of photos or pictures about the condition of buildings that need to be reviewed for repairs or are no longer suitable for use after being hit by an earthquake.Bencana alam adalah suatu peristiwa alam yang mengakibatkan dampak besar bagi populasi manusia. Salah satu peristiwa alam yang menjadi fokus dalam kegiatan PKM ini adalah gempa bumi. Gempa bumi merupakan fenomena alam berupa getaran atau gerakan bergelombang pada lempeng bumi yang disebabkan oleh tenaga yang berasaldari dalam bumi. Gempa yang disebabkan oleh pergeseran tanah dinamakan gempa tektonik dan gempa yang disebabkan oleh gunung berapi dinamakan gempa vulkanik. Indonesia merupakan daerah rawan gempa karena terletak di atas tiga lempeng yakni Lempeng Eurasia, Lempeng Pasifik, dan Lempeng Indo-Australia. Hanya di Kalimantan bagian barat, tengah, dan selatan, sumber gempa bumi tidak ditemukan. Untuk mengurangi dampak resiko pada saat gempa perlu dilakukan suatu mitigasi gempa kepada masyarakat di daerah yang rawan terjadi gempa bumi. Mitigasi gempa yang akan dilakukan dalam kegiatan PKM ini berupa penyuluhan melalui webinar secara online untuk mencegah kontak fisik atau kerumunan, berhubungan dengan pandemi Covid19. Hasilnya, dari pertanyaan yang diajukan peserta, masih kurang pemahaman bahaya dari mengubah fungsi guna bangunan atau batas guna bangunan berdasarkan beban desain dan kondisi bangunan setelah gempa. Maka untuk PKM selanjutnya, disarankan membuat panduan informasi secara umum seperti contoh foto atau gambar tentang kondisi bangunan yang perlu ditinjau untuk perbaikan atau tidak layak guna lagi setelah terkena gempa.

scholarly journals Identifikasi Kerusakan Pasca Gempa Menggunakan Metode Object Based Image Analysist (OBIA) (Studi Kasus: Pidie Jaya, Aceh)

2017 ◽  
Author(s):  
Prila Ayu Dwi Prastiwi ◽  
agung budi harto ◽  
Ketut Wikantika ◽  
Dasapta Erwin Irawan
Keyword(s):  
Satellite Imagery ◽  
Damage Identification ◽  
Earthquake Damage ◽  
Tectonic Plates ◽  
Sensing Technology ◽  
Australian Plate ◽  
Object Based ◽  
Richter Scale ◽  
The Pacific ◽  
High Resolution Satellite Imagery

AbstrakIndonesia merupakan salah satu negara yang dilalui oleh pertemuan tiga lempeng aktif, yai- tuLempeng Indo-Australia, Lempeng Euro-Asia, danLempengPasifik. Kondisiitumenjadis- alahsatupenyebab seringterjadinyabencanaalam, khususnyagempabumi. Padatanggal 7 Desember 2016 Kota Aceh kembali diguncang gempa bumi dengan kekuatan 6,5 skala richter. Gempa bumi tersebut mengakibat ratusan bangunan mengalami kerusakan. Saat ini teknologi penginderaan jauh sangat berperan dalam melakukan identifikasi kerusakan akibat gempa. Penelitian kali ini akan berfokus pada identifikasi kerusakan bangunan yang diakibatkan oleh gempa bumi dengan menggunakan citra satelit beresolusi tinggi, yaitu citra Pleiades yang diambil tanggal 7 Desember 2016. Metode yang digunakan untuk identifikasi kerusakan bangunan adalah metode Object Based Image Analysist (OBIA). Pada proses klasifikasi, metode OBIA memandang objek tidak hanya berdasarkan nilai piksel saja melainkan berdasarkan bentuk, luasan, dan tekstur disekitarnya. Berdasarkan penelitian ini didapatkan bahwa metode OBIA terbukti dapat mengidentifikasi kerusakan bangunan pasca gempa bumi secara cepat.Kata kunci: OBIA, Citra satelit, Klasifikasi, Kerusakan pasca gempa bumi Abstract277 Jalan Ganesha No.10, Kota Bandung, Jawa Barat 40132 Indonesia e-mail: [email protected] is located in a meeting point of three active tectonic plates, the Indo-Australian Plate, Euro-Asia Plate, and the Pacific Plate. This condition causes frequent occurrence of natural disasters, especially earthquakes. On December 7, 2016 Aceh was hit by an earth- quake with a magnitude of 6.5 richter scale. The earthquake affected damaged hundreds of buldings. Nowadays remote sensing technology can be used to identify damage caused by the earthquake. This research is focused on post-earthquake damage identification using high resolution satellite imagery, the Pleiades image taken on December 7, 2016. The method used to identify the damaged buildings is the Object Based Image Analysist (OBIA) method. In the classification process, the OBIA method distinguish objects not only based on pixel values but also on the basis of the shape, area, and texture around them. This re-search has proven that OBIA method quickly identifies the damage buildings caused by the earthquake.Keywords: OBIA, Satellite Imagery, Classification, Post-Earthquake Damage

scholarly journals Implementasi Google Maps API Pemetaan Jalur Evakuasi Bencana Alam di Kabupatem Lombok Utara

2019 ◽  
Vol 19 (1) ◽  
pp. 138-146
Author(s):  
Khaerul Yasin ◽  
Ahmat Adil
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Geographic Information ◽  
Eurasian Plate ◽  
Google Maps ◽  
Tectonic Plates ◽  
Plate Movement ◽  
The North ◽  
Australian Plate ◽  
Evacuation Routes

Basically, Indonesia is traversed by three active tectonic plates namely the Indo-Australian Plate in the south, and the Eurasian Plate in the north and the Pacific Plate in the east. The plates collide with each other because the Indo-Australian Plate movement drops below the Eurasian plate. As a result of this accumulation, it caused earthquakes, volcanoes, and faults or faults in parts of Indonesia. In the Geographic Information System evacuation routes will be used by Google maps Api to implement the spatial map making of evacuation routes. Google Map Api is an application interface that can be accessed via javascript so that Google Map can be displayed on the web page that we are building. The result or output to be achieved is the creation of a geographic information system mapping natural disaster evacuation route in the North Lombok district that can be run on a Web platform. Based on the trials conducted it can be concluded that this application can help the community to find the location of evacuation routes and gathering points in accordance with the districts and villages where they live.

Identification and analysis of employee branding typology using fuzzy c-means clustering

2017 ◽  
Vol 24 (5) ◽  
pp. 1253-1268
Author(s):  
Thamaraiselvan Natarajan ◽  
Sridevi Periaiya ◽  
Senthil Arasu Balasubramaniam ◽  
Thushara Srinivasan
Keyword(s):  
Psychological Contract ◽  
Training And Development ◽  
Cluster Number ◽  
Content Type ◽  
Fuzzy C Means ◽  
Fuzzy C Means Clustering ◽  
Fcm Clustering ◽  
Level Of Knowledge ◽  
High Level

Purpose The purpose of this paper is to identify and analyse the typology of employee branding in an airline company using fuzzy c-means (FCM) clustering to improve the quality of employee brand (EB). Design/methodology/approach Data were collected from employees of Air India, Chennai division, using a questionnaire and analysed using FCM to find the optimum cluster number. The nature of each cluster was analysed to know its type. Findings The results prove the presence of four types of EB, namely, all-stars, injured reserves, rookies and strike-out kings in the aviation company. It is proven that employees in all-star have high level of knowledge of the desired brand (KDB) and psychological contract (PC), those in injured reserves have high KDB and low PC, rookies have low KDB and high PC and strike-out kings have low KDB and PC. Research limitations/implications The results of this study are limited to the Air India employees. This study contributes to employee branding by empirically substantiating the proposed typology using FCM. It proposes the need to analyse organisations individually before comparisons. Practical implications The management must focus on the quality of training and development programmes to enhance the position of rookies and strike-out kings. It must also receive regular feedback from injured reserves and strike-out kings to evaluate their perception of PC. Originality/value This is the first paper to empirically prove the typology of employee branding and to implement FCM in clustering employees for enhancing the EB’s quality.

Pola Deformasi (Deformation Pattern) Mineralisasi Emas Sulfida Rendah di Zona Neo-Tektonik Selat Sunda

PROMINE ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 12-18
Author(s):  
Dudi Nasrudin Usman ◽  
Nana Sulaksana ◽  
Febri Hirnawan ◽  
Iyan Haryanto
Keyword(s):  
Data Processing ◽  
Tectonic Activity ◽  
Deformation Pattern ◽  
Gold Content ◽  
Eurasian Plate ◽  
Average Value ◽  
Data Content ◽  
The Difference ◽  
Two Parameters ◽  
High Level

The Sunda Strait is one of the zones of the Eurasian plate encounters with fairly active Indian plates. This can be seen based on volcanic activity that occurred in the region of Mount Krakatau. But there are unique things that are important to learn is tectonic movement with geological forces that work to produce cracks in rocks, the formation of volcanoes and cracks that occur produce mineralized zones, especially in the Formation of Honje and Formation Cipacar and more widely known as Bayah Dome. The presence of mineralization of the Honje Formation and Cipacar Formation is particularly located in the District of Cimanggu, Mangku Alam Village, the existence of gold mining activities proves that the mineralization of the region has the potential of economy. The presence of mineralization will not be separated from the presence of rock fractures in the two formations that have different geological age of the Late Miocene and Plistocene. Both formations are hindered by the presence of unconformity fields. This study aims to prove the extent of tectonic activity occurring in the Honje Formation with the final Miocene age forwarded to the Cipacar Formation even though obstructed by the field of nonconformity with the results of field data processing based on the value of RMR and RQD value. Both parameters are also studied to determine the extent to which the RQD value determines the magnitude of the grade value of Gold (Au). The distribution of RMR value and rock RQD value is taken from 2 different rock units, ie, andesite rock units in Honje Formation and tuff rock units in Cipacar Formation, based on the data distribution around 125 RMR observation points and 117 RQD observation points in the field are processed by using method test the average difference of the two parameters from 2 different rock units. In addition, the RQD value was correlated to the high level of gold content using correlation regression test of 78 data content and RQD value. Results of processing and discussion of data indicate that between the value of RMR in andesit unit and tuff unit there is no difference in value means H0 accepted by tcount = 0.556 <ttable = 1.995, as well as the difference test average RQD value where the results show that there is no difference between the average value of RQD andesite rock units in Honje Formation and tuff rock units in Cipacar Formation with tcount = 1.714 <ttable = 1.995, based on the results of data processing it can be explained that the tectonic activity in Honje Formation with the final Miocene age is forwarded to Cipacar Formation even if obstructed the field of dissonance means that tectonic activity of the region is inferred as neotectonic activity of West Java. In addition, one more thing that can be concluded that the relationship of RQD with Gold content (Au) based on statistical test the greater the value of RQD then the value of gold content (Au) the greater the test results regression correlation value PValue (Significance) = 0.013 with the equation y = -0.715x + 75.882 value R2 42.39%. Because Significance value> 0.05 then H0 DENIED, so H1 accepted, where the higher the value of the Big Au content then the RQD Value the greater.

scholarly journals Pemakaian Bracing Pada Bangunan Tahan Gempa dengan Analisis Pushover (The Usage of Bracing on Earthquake Resistant Buildings with Pushover Analysis)

2016 ◽  
Vol 1 (01) ◽  
pp. 84
Author(s):  
Dwi Wahyu Anggraeni ◽  
Erno Widayanto ◽  
Dwi Nurtanto
Keyword(s):  
Collision Energy ◽  
Pushover Analysis ◽  
Pacific Plate ◽  
Earthquake Response ◽  
Eurasian Plate ◽  
High Rise ◽  
Australian Plate ◽  
The Pacific ◽  
Earthquake Resistant ◽  
The Difference

AbstractMost of Indonesia area is an earthquake- prone region. This is caused by the confluence of three major plates world that are subduction. Indo-Australian Plate colliding with the Eurasian plate off the coast of Sumatra, Java and Nusa Tenggara, while the Pacific plate in northern Guinea and North Maluku. In the vicinity of the meeting location this plate collision energy accumulated in the form of earthquake. The quake destroyed much of the multi-storey buildings that do not have adequate strength. Therefore , the higher the building, the greater the effects of the earthquake were received by the building. One way to acquire resistance to earthquake response was to add rigidity to a building. How to obtain the stiffness of a building is to install bracing for high-rise buildings. The purpose of this analysis was conducted to determine usage behavior particularly bracing displacement. The Results of this analysis showed a reduction in horizontal deviation of the building due to the addition of frame bracing. The difference in the percentage of horizontal deviation without bresing building and building using bresing X is 82.519%. While the difference in the percentage of horizontal deviation without order bresing building and building using bresing V is 64.904%.Keywords: pushover analysis , bracing, displacement,earthquake AbstrakSebagian besar wilayah Indonesia merupakan wilayah rawan gempa. Hal ini disebabkan oleh pertemuan tiga lempeng utama dunia yang bersifat subdaksi. Lempeng Indo- Australia bertabrakan dengan lempeng Eurasia di lepas pantai Sumatra, Jawa dan Nusa Tenggara, sedangkan lempeng Pasific di utara Irian dan Maluku Utara. Di sekitar lokasi pertemuan lempeng ini akumulasi energi tabrakan terkumpul sehingga lepas berupa gempa bumi. Gempa banyak menghancurkan bangunan- bangunan bertingkat yang tidak mempunyai kekuatan yang memadai. Oleh karena itu, semakin tinggi bangunan maka semakin besar pula efek gempa yang diterima oleh bangunan tersebut. Salah satu cara untuk memperoleh ketahanan terhadap respon gempa adalah menambah kekakuan pada suatu bangunan. Cara memperoleh kekakuan suatu bangunan adalah dengan memasang pengekang (bracing) untuk bangunan tinggi. Tujuan dari analisa ini dilakukan untuk mengetahui perilaku pemakaian bracing khususnya displacement. Hasil dari analisa ini menunjukkan terjadinya pengurangan simpangan horizontal gedung karena adanya penambahan rangka bracing. Selisih presentase simpangan horizontal gedung tanpa bresing dan gedung dengan menggunakan bresing X adalah 82,519%. Sedangkan selisih presentase simpangan horizontal gedung tanpa rangka bresing dan gedung dengan menggunakan bresing V adalah 64,904%.Kata kunci: analisa pushover , bracing, displacement, gempa

EDUKASI BENCANA KEKERINGAN DAN KESIAPSIAGAAN WARGA MASYARAKAT DALAM MENANGGULANGI BENCANA KEKERINGAN DI KABUPATEN LOMBOK TENGAH PROVINSI NUSA TENGGARA BARAT

2021 ◽  
pp. 28-44
Author(s):  
Ida Surya Surya ◽  
I Gusti Ngurah Suwetha
Keyword(s):  
Qualitative Research ◽  
Eurasian Plate ◽  
Cropping Patterns ◽  
Field School ◽  
Australian Plate ◽  
The Pacific ◽  
Weather And Climate ◽  
Disaster Education ◽  
Field Schools ◽  
Planting Season

Geologically, Indonesia is located at the confluence of three of the world's main plates, namely the Indo-Australian Plate, the Eurasian Plate, and the Pacific Plate, which often cause disasters, for example drought. Central Lombok Regency is one of the regencies in West Nusa Tenggara, with these two seasons, most often hit by drought disasters, considering that the rainfall in Central Lombok is very small. So that disaster education and preparedness are needed for residents. This article uses qualitative research methods. The results of the study show that climate field schools have an important role in disaster education. Climate field school is a form of education for farmers that is very useful especially in understanding the weather and climate combined with new agricultural techniques that will allow farmers to plant different crops at different times of the year. Meanwhile, for preparedness, it is carried out through several programs in the form of urging and asking farmers to be disciplined in carrying out cropping patterns according to the zoning in which they are located (rice-padi-palawija or padi-palawija-palawija), mapping of land related to cropping patterns, planting rice parity that requires little water, namely the Situpagendit variety, and urges farmers to insure their rice plants, which is Rp. 36.000/ Ha for one planting season at PT. JASINDI.   Keywords: Indonesia's geological location, disaster, disaster education.

scholarly journals Studi Literatur Penggunaan Sensor untuk Sistem Deteksi Gempa

2021 ◽  
Vol 1 ◽  
pp. 1-7
Author(s):  
Rizki Kurniawati ◽  
Muhammad Ary Murti
Keyword(s):  
Warning Systems ◽  
Eurasian Plate ◽  
Literature Study ◽  
Detection Systems ◽  
Earthquake Detection ◽  
Australian Plate ◽  
The Pacific ◽  
Prone Area ◽  
Earthquake Vibration ◽  
Selection Of

As a country located among three major tectonic plate confluences, namely the Eurasian Plate, the Indo-Australian Plate, and the Pacific Plate, Indonesia is an earthquake-prone area. Information about the earthquake occurrences is distributed by the BMKG through social media, websites and television. However, it is undeniable that there are still people who do not have televisions or smartphones. Therefore, earthquake warning systems began to be widely developed. Furthermore, sensors for earthquake vibration detection have an important role in earthquake warning systems. So in this article, the author has conducted a literature study and analysis of the sensors commonly used in earthquake detection systems. This study aimed to present sensor recommendations to be used as earthquake sensors. The result of the literature study, that the author had done, is the selection of sensors is customized to the needs and budget of the project. A description of the sensor recommendations for each project has also been included in this article.

Sign in / Sign up

Export Citation Format

Share Document