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All Journal Journal of Mathematical and Fundamental Sciences Jurnal Spektra Jurnal Penelitian Pendidikan IPA (JPPIPA) INDONESIAN JOURNAL OF APPLIED PHYSICS BAREKENG: Jurnal Ilmu Matematika dan Terapan PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Indonesian Physical Review Jurnal Gema Ngabdi Archipelago Engineering PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Indonesian Journal of Physics (IJP)
Matheus Souisa
1 Department Of Physics, Faculty Of Mathematics And Natural Sciences, University Of Pattimura, Ambon 2 Landslides Laboratory, Faculty Of Mathematics And Science, University Of Pattimura, Ambon 3 Disaster Mitigation Laboratory, Faculty Of Mathematics
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PENCITRAAN RESISTIVITAS BIDANG LONGSOR DI PERBUKITAN BOOI DAN ERIE KOTA AMBON MENGGUNAKAN KONFIGURASI WENNER – SCHLUMBERGER Souisa, Matheus; Hendrajaya, Lilik; Handayani, Gunawan
Jurnal Spektra Vol 16, No 2 (2015): Spektra: Jurnal Fisika dan Aplikasinya
Publisher : Jurnal Spektra

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

Abstract

AbstrakPulau Ambon dalam hal ini Kota Ambon adalah bagian dari kepulauan Maluku merupakan pulau-pulau busur vulkanis dan termasuk berada dalam wilayah kepulauan pulau-pulau kecil yang berhubungan dengan zona penunjaman sehingga mempunyai tingkat kerentanan tinggi terhadap berbagai bencana alam, seperti erosi dan tanah longsor pada kondisi kelerengan tertentu. Penelitian ini bertujuan untuk mengetahui citra resistivitas longsor bawah permukaan di daerah longsor dan menentukan posisi kritis bidang gelincirnya. Lokasi penelitian di perbukitan Kmp.Booi Kecamatan Sirimau dan Desa Erie Kecamatan Nusaniwe Kota Ambon. Penyelidikan menggunakan metode geolistrik resistivitas dengan konfigurasi Wenner-Schlumberger dan pengukuran terbagi atas delapan lintasan. Hasil penelitian memberikan karakterisasi daerah longsor tipe slide rotasi dan aliran debris. Lokasi longsor merupakan daerah tebing dengan kemiringan > 45% dan dipicu dengan curah hujan > 200 mm. Citra penampang resistivitas menunjukkan korelasi data geologi, data klimatologi dan nilai resistivitas sehingga diperoleh litologi yang didominasi oleh nilai resistivitas rendah dengan struktur lapisan berupa lapisan lempung campuran. Citra bawah permukaan menunjukkan bahwa resistivitas lapisan atasnya jauh lebih rendah dari resistivitas lapisan bawah maka sangat memungkinkan terjadi longsor susulan pada lokasi penelitian. AbstractAmbon Island in this case the city of Ambon is part of the Moluccas islands are volcanic arc and included in the territory of the archipelago of small islands are associated with subduction zones that have a high degree of vulnerability to natural disasters, such as erosion and landslides on condition certain slope. This study aims to determine the image of the subsurface resistivity landslides in landslide areas and determine the position of slip zone. Research sites in the hills Kmp.Booi District of Sirimau, and Erie Village District of Nusaniwe Ambon. Investigations using geo-electric resistivity with Wenner-Schlumberger configuration and measurement is divided into eight line. The results of the study provide characterization of the landslide area slide-type rotation and debris flow. Landslide site is an area of cliffs with slopes > 45% and triggered by rainfall > 200 mm. Resistivity cross-section image shows the correlation of geological data, climatological data and resistivity values thus obtained lithology dominated by low resistivity values with the structure of a layer of clay coating mix. The slip zone was measured trajectory obtained from the resistivity contrast between two adjacent rocks. Subsurface image shows that the resistivity of the layer above it is much lower than the resistivity of the layer below it is possible subsequent landslides.Keywords: resistivity imaging, landslides, Wenner-Schlumberger, rainfall
Study on Estimates of Travel Distance, Velocity and Potential Volume of Amahusu Sliding Plane using Energy Conservation Approach in Conjunction with Geoelectric Survey Matheus Souisa; Lilik Hendrajaya; Gunawan Handayani
Journal of Mathematical and Fundamental Sciences Vol. 50 No. 2 (2018)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2018.50.2.5

Abstract

The investigation of landslides applying various methods has been receiving increased attention in recent years. This study was aimed at assessing the estimated distribution of landslide movement using an energy conservation formula in a lumped mass model to obtain velocity and travel distance estimations, in combination with an inverted resistivity model for estimating the Amahusu landslide volume. The research location was in the Amahusu hills of the Nusaniwe subdistrict, Ambon, Indonesia. A survey was carried out using GPS and a geoelectric resistivity method with the Wenner-Schlumberger configuration. The results of the study provide a characterization of this rotational type landslide. The estimated landslide volume was 70,954 m3 and the estimated potential landslide volumewas 50,603 m3. This mass moved 303 m away from the original location, with an estimated maximum velocity of up to 21.25 m/s. The displacement pattern of a landslide mass is primarily controlled by the geometry of the sliding plane. The geometry of the sliding plane causes different types of movement, based on which the possible occurrence of a future landslide can be predicted.
Analysis of the Impact of Coulomb Stress Changes of Tehoru Earthquake, Central Maluku Regency, Maluku Province Matheus Souisa; Sisca Madonna Sapulete
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 4 (2021): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i4.975

Abstract

The Tehoru earthquake occurred due to the release of stress in rocks. There is a release of energy as an earthquake as a result of the rock elasticity limit has been exceeded because the rock is no longer able to withstand the stress. One method to determine the distribution of earthquake stress is the Coulomb stress change method. The study aimed to determine the DCS of the Tehoru earthquake, Seram Island, and the effect of the main earthquake stress release on aftershocks.  The research results show that the DCS distribution of the Tehoru June 16, 2021 earthquake is shown with negative lobes and positive lobes. The negative lobe is found in an area that is perpendicular to the fault plane and has been identified as having experienced relaxation, so there may be still aftershocks with stress values ranging from (0.0 – 0.3) bar. The dominant positive lobe occurs next to the southern end of the fault plane, too much located in the area of increasing Coulomb stress with values ranging from (0.2 - 0.6) bar
Analisis Bidang Longsor Menggunakan Pendekatan Terpadu Geolistrik, Geoteknik Dan Geokomputer di Negeri Lima Ambon Matheus Souisa; Lilik Hendrajaya; Gunawan Handayani
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 8, No 1 (2018): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v8i1.15482

Abstract

Telah digunakan banyak metode untuk mengkaji permasalahan longsor dari sudut pandangan pendekatan satu-disiplin, interdisiplin maupun multidisiplin. Beberapa metode sedang dikembangkan untuk dipadukan dalam investigasi longsor selama dekade terakhir ini, fokus studi diarahkan menggunakan pendekatan investigasi multidisiplin seperti survei geolistrik, geoteknik dan geokomputasi untuk menentukan potensi longsor sehingga dapat meminimalisir bencana longsor. Hasil kajian memberikan bidang gelincir terletak pada kelompok resistivitas menengah dengan jenis pasir atau pasir lempungan yang menindih kelompok resistivitas tinggi yang berupa batulempung keras (bedrock). Berdasarkan nilai faktor keamanan lereng, bidang gelincir ini berada pada keadaan kurang stabil. Sedangkan penerapan geokomputasi menunjukkan lokasi kajian ditafsirkan berada dalam zona bahaya yang tinggi sehingga sangat berpotensi adanya longsor susulan. Dari hasil kajian terpadu, lokasi kajian masih dalam kondisi tidak aman dan bisa terjadi longsor susulan jika dipicu oleh faktor luar. Untuk meminimalisir longsor susulan dengan menurunkan muka air tanah adalah menggunakan model tol air dengan memanfaatkan sungai-sungai kecil/besar yang terdapat di bawah lereng/tebing untuk dapat dialirkan air pada musim hujan
KAJIAN GERAKAN TANAH MELALUI INTEGRASI MULTIDISIPLIN (Studi Kasus: Longsor Amahusu Kecamatan Nusaniwe Ambon) Matheus Souisa
ALE Proceeding Vol 1 (2018): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.1.2018.115-121

Abstract

Telah digunakan banyak metode untuk mengkaji permasalahan gerakan tanah dari sudut pandangan pendekatan satudisiplin, interdisiplin maupun multidisiplin. Beberapa metode sedang dikembangkan untuk dipadukan dalam investigasi gerakan tanah (longsoran) selama dekade terakhir ini, fokus studi diarahkan menggunakan multidisiplin dengan pendekatan geolistrik, geoteknik dan geokimia untuk menentukan potensi gerakan tanah (longsor) Amahusu sehingga dapat memberikan mitigasi gerakan tanah. Hasil penelitian memberikan bidang gelincir longsor Amahusu dicirikan oleh anomali resistivitas dari struktur lapisan bawah permukaan yang rendah (< 50.0 Ω.m) hingga sedang (50.0 – 200.0 Ω.m), dan anomali ini mengindikasikan citra resistivitas jenis batuan lempung dan lempung pasiran, sedangkan anomali geoteknik teridentifikasi adanya tanah lempung lanau dan lanau pasiran, dan berdasarkan nilai faktor keamanan lereng (FS<1.25) dalam keadaan kritis. Sedangkan anomali geokimia pada proses pelapukan menyebabkan terjadinya penghalusan mineral sehingga persentase fraksi ukuran butir lempung menjadi lebih besar jika dibandingkan di bagian atas dan bawahnya maka akumulasi fraksi lempung yang ada di bagian bawah menjadi bidang gelincir yang memicu longsor. Berdasarkan perpaduan ini, anomali-anomali saling berkorelasi dan tersebar di sekitar lokasi longsor. Olehkarena itu, masih terdapat longsor susulan jika dipicu oleh hujan di atas normal dan masih tetap berada di sekitar lokasi longsor, sedikit bergerak ke arah timur laut dengan jangkauan yang sedikit meluas.
PREDIKSI VOLUME POTENSI LONGSORAN BERDASARKAN INVERSI RESISTIVITAS (Studi Kasus di Amahusu dan Erie Ambon) Matheus Souisa; Lilik Hendrajaya; Gunawan Handayani
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (648.145 KB) | DOI: 10.21009/0305020404

Abstract

Investigations of landslides conducted intensive from year to year due to the intensity of the landslides that continues to increase along with the rainy season. This study aims to determine volume prediction of landslides through inversion resistivity of the subsurface in the area of the landslide. Research sites in the hills Amahusu and Erie District of Nusaniwe Ambon. Survey data retrieval using geoelectric resistivity with the Wenner-Schlumberger configuration and measurement is divided into several lines. The results of the study provide characterization of the landslide area slide-type rotation. The slip area of landslides is characterized by low resistivity and with layers of rock structure in the form of a layer of clay mixed with weathered rock and water-saturated clay layer. Predictive value of landslide volume when occurence the volume landslide for the location Amahusu of 70,953.9 m3 and Erie location of 34,042.3 m3, while the predictive value of the potential volume of landslides for the location Amahusu of 50,603.3 m3 and Erie location of 3,399.4 m3. The potential failure of a slope with a steep slope can predict occur of landslides subsequent in the original location. Keywords: landslides, volume prediction, inversion resistivity, slope failure.
Study of Coulomb Stress Change (CSC) Earthquake in the Segment Area of West Seram – Ambon Island Matheus Souisa; Sisca Madonna Sapulete; Stenly Samalelaway
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 4 (2022): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i4.2025

Abstract

Long beans are short-lived plants that are widely cultivated in Indonesia. To stimulate the growth of long beans, it is necessary to fertilize with the appropriate dose for its growth. Research on the effect of vermicompost and NPK fertilizer has been carried out in Mertak Umbak Village, Central Lombok. The purpose of the research was to determine the effect of the application of vermicompost on the growth of long beans, the effect of the application of NPK fertilizer on the growth of long beans and the interaction effect of the application of vermicompost and NPK fertilizer on the growth of long beans. The research was carried out with a 2-factor design and 4 replications. The research data were analyzed by analysis of variance. In this study, the results showed that the treatment of vermicompost significantly increased the number of leaves and plant height, but could not increase the length and width of the long bean leaves, the application of NPK fertilizer could increase the leaf length, leaf width, number of leaves and stem length of long beans and the interaction of vermicompost and NPK fertilizer treatment did not significantly affect all measured long bean growth parameters
Landslide Dynamics and Determination Critical Condition Using of Resistivity Method in Desa Negeri Lima Ambon Matheus Souisa; Lilik Hendrajaya; Gunawan Handayani
Indonesian Journal of Physics Vol 26 No 1 (2015): Vol. 26 No. 1, July 2015
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.07 KB) | DOI: 10.5614/itb.ijp.2015.26.1.1

Abstract

Ambon Island is a volcanic island arc and included in the territory of the archipelago of small islands are associated with subduction zones that have a high degree of vulnerability to natural disasters, such as erosion and landslides on a particular slope conditions. This study aims to determine the dynamics of avalanches below the surface in the area of the landslide and determine the position of the gelincirnya. The study area in the mountains of Ulak Hatu Negeri Lima Ambon. Research using geoelectric of resistivity with Wenner-Schlumberger configuration. Geoelectric interpretation results correlated with the drill data to obtain landslide field located at a depth of approximately 5 m - 30 m and lithology dominated by low resistivity values with the structure of a layer of clay mixed with layers of weathered rock and clay layer with water saturated. Both of these layers contact each other and form the slope of the ground, causing the potential for critical slip thereon and allows the subsequent landslides. Critical location landslide direction of the obliquity of the avalanche that is, toward the cliff and the geometry of the type of debris avalanches of rocks and debris flow. Estimation of landslides occur in addition to the local geological conditions, but strongly influenced by rainfall reached 335.0 mm, earthquakes and coupled with a slope of 119.0%.
Analysis of Mountain Sand Material Content in Rumah Tiga and Hative Besar Villages, Teluk Ambon District Using X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF) Methods) Sisca M Sapulete; Matheus Souisa; Amirah Hanifah; Ferdinanda C. Papilaja
Jurnal Penelitian Pendidikan IPA Vol 9 No 4 (2023): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i4.3168

Abstract

One area that has a mountain sand mine is Maluku, especially Ambon City, Teluk Ambon District, Hative Besar Village, and Rumah Tiga Village. This study aims to analyze mineral content, lattice parameters/crystal size, and the percentage of elemental and oxide content that forms a material on mountain sand in Wailete, Hative Besar Village and Kota Jawa, Rumah Tiga Village, using XRD and XRF methods. The mineral content analyzed by the XR-D method at both research locations showed the presence of diffraction peaks of the relationship between angle (2θ) and intensity (I) in the diffraction pattern with the main mineral content dominated by Quartz, Cristobalite, Sodalite, Calcite-synthetic, Anorthite, and followed by other minerals. Analysis of the percentage of elemental content using the XR-F method. Based on the results of XR-F analysis, the most dominant element in Wailete mount sand is Si (Silicon) with a percentage of 66.3% then followed by Al (Aluminum) at 10.8%, Fe (Iron) at 3.75% and in Kota Jawa hill, namely Si (Silicon) is 46.2%, Al (Aluminum) is 10.8%, Fe (Iron) is 9.11% and the rest is in the form of several elements with smaller percentages, namely Rb (Rubidium) and Sr (Strontium) 0.09%.
Earthquake Disaster Risk Analysis for Mitigation Efforts in Seram and Buru Islands, Maluku Matheus Souisa; Sisca M. Sapulete; Learsi A. Siahaya
Jurnal Penelitian Pendidikan IPA Vol 9 No 7 (2023): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i7.3762

Abstract

Earthquakes occur due to the sudden release of energy from within the earth causing seismic waves. Earthquake activity with a magnitude ³ 3.5 SR is grouped over 21 years from 2000-2020 to determine the level of seismicity in Seram Island, Buru Island, and surrounding areas. The area of seismic activity is clustered over three blocks. The purpose of this research is to determine the seismicity level and mitigation model in each block in the research area. The results showed that seismic activity in the study area with shallow earthquakes was mostly in Block II as many as 1195 times (40.4%) and Block III as many as 1135 times (38.4%). This block is estimated to have the potential for a tsunami to occur. Mitigation efforts to reduce the risk of earthquakes are by implementing a resilient-elastic building system and the location of settlements from the coastline > 100 m with a topography of at least 25 meters
Co-Authors Alexander Yosep Elake Amirah Hanifah Elake, Alexander Yosep Ely, Sufilman Ferdinanda C. Papilaja Fredrik Manuhutu, Fredrik Gunawan Handayani Gunawan Handayani Gunawan Handayani Gunawan Handayani Gunawan Handayani Gunawan Handayani, Gunawan Jubaedah, Sitti Learsi A. Siahaya Lebang, Annamaintin Kobong Lilik Hendrajaya Lilik Hendrajaya Lilik Hendrajaya Lilik Hendrajaya Lilik Hendrajaya Lilik Hendrajaya Mirella F. Maahury Nukuhaly, Manda S. Pieldrie Nanlohy Sapulete, Sisca M. Sapulete, Sisca Madonna Sisca M Sapulete Sisca M. Sapulete Sisca M. Sapulete Sisca Madonna Sapulete Sisca Madonna Sapulete Souisa, Sean O. Stenly Samalelaway Waimalaka, Raras F.