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All Journal Jurnal Lanskap Indonesia Indonesian Journal of Geography Jurnal Pendidikan Kewarganegaraan Undiksha REKA GEOMATIKA Jurnal Geodesi Undip TELKOMNIKA (Telecommunication Computing Electronics and Control) IJOG : Indonesian Journal on Geoscience Jurnal RISET Geologi dan Pertambangan Indonesian Journal of Geospatial Journal of Engineering and Technological Sciences JURNAL SPASIAL JOURNAL ONLINE OF PHYSICS JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) JURNAL ILMIAH GEOMATIKA Jurnal Segara Jurnal Rekayasa Hijau JURNAL METEOROLOGI DAN GEOFISIKA Widyariset Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) International Journal of Disaster Management Jurnal Meteorologi dan Geofisika Journal of Engineering and Technological Sciences
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TECTONIC STRAIN AND SEISMIC HAZARD ESTIMATION IN SUNDA STRAIT BASED ON GPS OBSERVATION DATA Marta Nugraha Hidayat; Irwan Meilano; Irwan Gumilar
Widyariset Vol 15, No 3 (2012): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1074.834 KB) | DOI: 10.14203/widyariset.15.3.2012.619–628

Abstract

Sunda strait has a relatively high seismic activity. The high seismic activity was caused by the seismic zoneat that region, including the faults zone. Based on the high seismic activity in the Sunda Strait, it is necessary to doresearch about the strain that occurred in the Sunda Strait region to determine the tectonic activity in that area andits seismic hazard. To observe the tectonic activity in the Sunda Strait, GPS observations were made periodicallywith static differential method at the observation points located in the Sunda Strait region. Based on the strainanalysis, the southwestern part of the Sunda Strait tend to experience compression and the northeastern part tendto experience extention. Sunda Strait had a relatively high seismic hazard with maximum PGA 0,47 g.
Numerical Modeling of Sinabung Volcano Magma Chamber Based on the GPS Data in 2012-2013 Using Very Fast Simulated Annealing (VFSA) Ratih Kumalasari; Wahyu Srigutomo; Irwan Meilano; Hendra Gunawan
Computational And Experimental Research In Materials And Renewable Energy Vol 5 No 1 (2022): May
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

GPS data of Sinabung Volcano during year 2012 to 2013 has been processed using Gamit 10.5 then we correct the data from global and local noise to get surface paramaters of Sinabung Volcano. After we get surface parameter we applied Mc Tique model with very fast simulated annealing (VFSA) Inversion Scheme. From the inversioan we concluded that the position of magma chamber divide in 3 period, on 1st period the magma chamber is on ± 27 km, on 2nd period is on ± 16 km and the 3th period is on ± 0.5km below Sinabung Valcono. That result showed that the magma migrated from the deep into shallow part and indicated that Sinabung Volcano is on active status. Keywords: Pressure source, VFSA, McTique Model, Sinabung.
The Mechanisms of Coastal Erosion in Northeast Bali Semeidi Husrin; Roka Pratama; Aprizon Putra; Hadi Sofyan; Nia Naelul Hasanah; Nita Yuanita; Irwan Meilano
Jurnal Segara Vol 12, No 2 (2016): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2159.913 KB) | DOI: 10.15578/segara.v12i2.7681

Abstract

Marine tourism sector in the Northeast Bali, Indonesia, experienced rapid development in the last decades. However, severe coastal erosion in some parts of the area has threaten the industry. Unsuccessful mitigation measures have been carried out by authorities by constructing seawalls along the coastline. The objective of the study is to understand the physical processes related to coastal erosion in the area and to assess the effectiveness of seawall along the coastline. To achieve the objectives, a GIS approach was carried out to investigate general changes of the coastline since 1944 until 2013. Hydrodynamics analyses and sediment transport simulations were also conducted and validated by the data from field measurements. The role of Mount Agung (a volcanic mountain) to the coastal dynamic system was also investigated. Moreover, the data from cGPS measurements in the island were also used for the analysis of possible land subsidence in the area. From social aspects, the history of USAT Liberty Shipwreck in Tulamben Village supports the analyses and provides information on the evolution of coastline in the area. We conclude that coastal erosion in North-east Bali has long been occurred and strongly affected by the dynamics of hydro-oceanography, volcanic activities, geological dynamics, and human interferences. Finally, the mechanism of coastal erosion in the area was also proposed.
GEODETIC SLIP RATE ESTIMATES FOR THE KUMERING AND SEMANGKO SEGMENTS OF THE SUMATERA FAULT Irwan Meilano; Susilo Susilo; Endra Gunawan; Budi Parjanto
Jurnal Meteorologi dan Geofisika Vol 22, No 1 (2021)
Publisher : Pusat Penelitian dan Pengembangan BMKG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (597.256 KB) | DOI: 10.31172/jmg.v22i1.802

Abstract

The Sumatran fault is a right lateral active inland fault in southern Sumatra, Indonesia. Although historical earthquake records have shown that magnitude 7 class earthquakes have occurred during the last century, the slip rates along the Sumatran fault have not been studied in detail. This is the first research using a new dense GPS array, in which stations are orthogonal to the fault, to analyze the fault slip rates along the Kumering and Semangko segments in southern Sumatra. In this study, we process GPS data from 14 campaign and continuous GPS points. The results show velocities of 14 mm/yr and 15 mm/yr for these two fault segments, respectively. Our estimated geodetic slip rate suggests that the Sumatran fault has a relatively homogeneous slip rate from southern to northern Sumatra.
Akumulasi Regangan di Sumatera Berdasarkan Data Pengamatan GPS Tahun 2002-2008 dan Dampak Kerusakan Lingkungan Akibat Pelepasan Regangan Riko Maiyudi; Irwan Meilano; Dina Sarsito
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 1, No 2 (2017)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v1i2.1630

Abstract

ABSTRAKPulau Sumatera terletak di antara dua lempeng tektonik yaitu lempeng Indo-Australia dan lempeng Eurasia. Intensitas gempa bumi sangat besar di pulau ini, terutama di sepanjang daerah pesisir barat. Pada 2002-2008 periode, banyak gempa bumi besar yang menyebabkan korban jiwa dan kerusakan lingkungan. Fenomena ini menunjukkan bahwa studi tentang pola deformasi pulau Sumatera sangat diperlukan. Studi yang diperlukan adalah untuk rencana mitigasi bencana di masa depan. Pola deformasi gempa dapat diamati dengan GPS pengamatan (Global Positioning System). Data yang digunakan untuk gempa Sumatera adalah GPS Sumatera Array (SuGAr). Perangkat lunak yang digunakan untuk data Array GPS Sumatera dari pulau Sumatera adalah Gamit 10.4. Dari hasil pengolahan data, dapat disimpulkan bahwa data perpindahan koordinat stasiun dapat digunakan jika data outlier telah terhapus. Dari koordinat perpindahan stasiun bisa diperoleh vektor perpindahan semua stasiun sebelum, selama atau setelah gempa bumi. Dari perpindahan nilai-nilai vektor, nilai regangan yang terjadi di sepanjang pulau Sumatera dapat diperkirakan. Dari data regangan, nilai akumulasi regangan 2002-2008 dapat diperoleh. Sehingga dapat dianalisis wilayah yang berpotensi terjadinya gempa selanjutnya.Kata Kunci: Akumulasi Regangan , Deformasi, Kerusakan Lingkungan, ABSTRACTThe Sumatra Island is located between two tectonic plates; the Indo-Australia Plate and the Eurasian plate. The intensity of the earthquakes is very large on the island because of this, especially along the western coastal area. On the 2002 to 2008 period, many large earthquakes that caused casualties and damage to the environment. These phenomena shows that the studies of the deformation patterns of the Sumatra island is required. The studies are required for disaster mitigation plans in the future. The deformation patterns of the earthquake can be observed with GPS (Global Positioning System) observation. The data that is being used for Sumatra earthquake is the Sumatran GPS Array. The software that is used for the Sumatran GPS Array data of the Sumatra Island is the Gamit 10.4. From the data processing, it can be concluded that there are displacements of the nations can be used if the outlier data has been erased. From the station displacement coordinates, we can obtain the displacement vector of all of the station before, during or after the earthquakes. From the displacement vector values, the values of the strain that occurs along the Sumatra Island can be estimated. From the strain data, the accumulated value of strain from 2002 to 2008 can be obtained. Finally it can be predicted potential area for next earthquake.Keywords: Keywords: Deformation, Environmental Damage, Accumulated Strain. 
The Potential of the Land Value Capture Scheme in the Perspective of Disaster Risk Funding Alfita Puspa Handayani; Alifah Hanif; Irwan Meilano
International Journal of Disaster Management Vol 6, No 1 (2023): April
Publisher : TDMRC, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/ijdm.v6i1.31740

Abstract

Disaster risk refers to the possibility of a loss of life, assets, health, and livelihoods to the community in the future, so it must be reduced, one of which is by implementing disaster risk management. The disaster risk management financing scheme is crucial considering the number of funds needed. This research serves as an initial exploration into alternative funding options by investigating the potential benefits of implementing the Land Value Capture (LVC) scheme. The driving question of this study focuses on the advantages of employing the land value capture concept for disaster risk funding. To address this question, a descriptive qualitative research methodology is employed, encompassing an analysis of LVC in general, a funding analysis for disaster risk management, and the implementation of LVC for disaster risk reduction specifically in Indonesia. The findings of this study reveal that the Land Value Capture (LVC) scheme can serve as an additional strategy for funding disaster risk management in Indonesia. Through the proposed framework, the integration of LVC with disaster risk financing and insurance is facilitated. 
PEMODELAN SUMBER TEKANAN GUNUNG SINABUNG MENGGUNAKAN SKEMA INVERSI PARTICLE SWARM OPTIMIZATION (PSO) Ratih Kumalasari; Wahyu Srigutomo; Irwan Meilano; Hendra Gunawan
JOURNAL ONLINE OF PHYSICS Vol. 8 No. 3 (2023): JOP (Journal Online of Physics) Vol 8 No 3
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v8i3.27099

Abstract

Gunung Sinabung merupakan salah satu gunung aktif diindonesia yang masuk dalam gunungapi tipe A setelah erupsi pertama kali pada tahun 2010 setelah sebelumnya tidak ada aktivitas erupsi. Gunung sinabung terus erupsi hingga saat ini yang mejadikan Gunung Sinabung perlu diamati lebih lanjut terkait aktivitas yang terjadi serta dilakukan pemodelan untuk memprediksi kondisi bawah permukaan yang dapat membantu proses analisis. Pemodelan terhadap data permukaan Gunung Sinabung yang berasal dari data pergeseran permukaan dari GPS pada tahun 2015-2016 telah dimodelkan dengan skema inversi particle swarn optimization (PSO). Erupsi yang terus menerus pada tahun tersbut menghasilkan data yang sangat fluktuatif dengan hasil inversi menunjukan bahwa sumber tekanan pada tekanan pada Gunung Sinabung terletak pada kedalaman dangkal yaitu 0,5km hingga 1,0 km dibawah permukaan laut dibawah Gunung Sinabung, dengan sumber tekanan yang dangkal serta adanya inflasi pada tubuh gunung api maka memungkinkan adanya erupsi secara kontiyu dalam waktu yang singkat
GEODETIC SLIP RATE ESTIMATES FOR THE KUMERING AND SEMANGKO SEGMENTS OF THE SUMATERA FAULT Irwan Meilano; Susilo Susilo; Endra Gunawan; Budi Parjanto
Jurnal Meteorologi dan Geofisika Vol. 22 No. 1 (2021)
Publisher : Pusat Penelitian dan Pengembangan BMKG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31172/jmg.v22i1.802

Abstract

The Sumatran fault is a right lateral active inland fault in southern Sumatra, Indonesia. Although historical earthquake records have shown that magnitude 7 class earthquakes have occurred during the last century, the slip rates along the Sumatran fault have not been studied in detail. This is the first research using a new dense GPS array, in which stations are orthogonal to the fault, to analyze the fault slip rates along the Kumering and Semangko segments in southern Sumatra. In this study, we process GPS data from 14 campaign and continuous GPS points. The results show velocities of 14 mm/yr and 15 mm/yr for these two fault segments, respectively. Our estimated geodetic slip rate suggests that the Sumatran fault has a relatively homogeneous slip rate from southern to northern Sumatra.
Numerical Modeling Of Pressure Source Of Sinabung Volcano Based On GPS Data In 2011-2012 Using Particle Swarm Optimization (PS0) Kumalasari, Ratih; Srigutomo, Wahyu; Meilano, Irwan; Gunawan, Hendra
Computational And Experimental Research In Materials And Renewable Energy Vol 3 No 2 (2020): November
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/cerimre.v3i2.23549

Abstract

Mogi Model with particle swarm optimization (PSO) scheme have been applied to the local GPS data of Sinabung Volcano during 2011 to 2012 to receive subsurface parameters as pressure sources in terms of misfit and inversion model parameter. The size of displacement was inverted by PSO. From the inversion concluded that the position pressure source showing shallow magma pockets at a depth between ±1.3 km volume change around +0.95x106 m3 . It indicates the presence of a huge magma supply and continuous into shallow magma chamber up to the surface of Sinabung Volcano.
PEMODELAN DINAMIKA SUMBER TEKANAN GUNUNG SINABUNG DENGAN SKEMA INVERSI VERY FAST SIMULATED ANNEALING (VFSA) Kumalasari, Ratih; Srigutomo, Wahyu; Djamal, Mitra; Meilano, Irwan; Gunawan, Hendra
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 1 (2024): JOP (Journal Online of Physics) Vol 10 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i1.36661

Abstract

Gunung Sinabung mulai erupsi pada tahun 2010 hingga saat ini (2021), berdasarkan hal tersebut maka perlu dilakukan analisis terkait Gunung Sinabung guna memprediksi posisi dan perubahan sumber tekanan dari Gunung Sinabung. Untuk mengetahui kondisi bawah permukaan dari Gunung Sinabung maka dilakukan inversi dari data diatas pernukaan yang dimiliki salah satunya yaitu data GPS (Global Positioning System), yang kemudian dat tren perubahan posisi dari GPS diinversi dengan metode Very Fast Simulated Annelaing (VFSA). Data yang digunakan dalam penelitian ini adalah data pada tahun 2015 hingga 2016 dikarenakan pada tahun tersebut terjadi erupsi yang kontinyu sehingga perubahan data terlihat dengan jelas. Dari hasil inversi diketahui bahwa sumber tekanan pada Gunung Sinabung terletak pada kedalaman dangkal yaitu 0,5km hingga 1,5km dibawah permukaan laut dibawah Gunung Sinabung, dan diketahui juga adanya perubahan sumber tekanan yang fluktuatif yaitu adanya kenaikan dan penurunan perubahan sumber tekanan yang berasosiasi dengan adanya inflasi dan deflasi pada tubuh Gunung Sinabung
Co-Authors A. D. Wirakusumah A. D. Wirakusumah Achmad Faris Agidia L. Tiaratama Agung Syetiawan, Agung Alfita Puspa Handayani Alfita Puspa Handayani Alifah Hanif Aprizon Putra Ari Setiawan Bagoes Dwi Ramdhani Binta, Izaza Budi Parjanto D. Darmawan D. Darmawan Dahlan, Mohammad Zaini Danny Hilman Natawidjaja Danny Hilman Natawidjaja Dina A. Sarsito Dina A. Sarsito, Dina Dina Anggraeni Dina Anggraeni Sarsito Dina Anggraeni Sarsito Dina Anggraeni Sarsito, Dina Dina Anggreni Sarsito Dina Sarsito Dudy D. Wijaya Dudy Darmawan Wijaya Dudy Darmawan Wijaya, Dudy Dwi Arini Endra Gunawan Estu Kriswati Evita, Maria F. Kimata F. Kimata Faisal, Budi Gina Andriyani Goro , Garup Lambang H. Andreas H. Andreas Hadi Sofyan Hanif, Alifah Hanny Hafiar Hasanuddin Z. Abidin Hasanuddin Z. Abidin Hasanuddin Z. Abidin Hasanuddin Z. Abidin Hasanuddin Z. Abidin, Hasanuddin Hendra Gunawan Henri Kuncoro Heri Andreas Heri Andreas Herlan Darmawan I Gst Ngr Yoga Jayantara Ilham Jamel Ilham Jamel, Ilham Imam Suyanto Intan H Fitri Irwan Gumilar, Irwan Irzaman, Irzaman Jayawarsa, A.A. Ketut Joni Efendi Joni Efendi, Joni Kobayashi, Hirohide Kosasih Prijatna Kosasih Prijatna, Kosasih Kumalasari, Ratih Kuncoro, Henri M. A. Kusuma M. A. Kusuma M. A. Purbawinata M. A. Purbawinata M. Asrurifak, M. M. Gamal M. Gamal M. Hendrasto M. Hendrasto Maria Evita Marta Nugraha Hidayat Masyhur Irsyam Mitra Djamal Moehammad Awaluddin Moh Yasin Mustikawati, Sekar Tanjung Nia Naelul Hasanah Nina Siti Aminah Nita Yuanita Ony K. Sugandar Ony K. Sugandar Pahlevi, Arisauna Maulidyan Pamumpuni, Astyka Prijatna, Kosasih Purwaningsih, Rr Diah Asih Putra Maulida Putra, Heriansyah Rahmy, Widyastri Atsary Ramdhani, Bagoes Dwi Rani, Medria Shekar RATIH KUMALASARI Ratih Kumalasari Retna Apsari Riko Maiyudi Rino Rino Rino Rino Roka Pratama S. Susilo Sarah Leila Hanief Sarah Leila Hanief, Sarah Sarsito, Dina Semeidi Husrin Shibata, Shozo Sofian, Ibnu Sri Widiyantoro Suchi Rahmadani Suryanto, Wiwit Susilo Susilo Susilo Susilo Sutomo Kahar Tanuwijaya, Zamzam Akhmad Jamaluddin Teriyuki Kato Wahyu Srigutomo Wahyudi Wahyudi Widjaja Martokusumo, Widjaja