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Analysis Of Seismic Rate Change Based On Spatial Distribution Of Seismotectonics And Deformation Extension In West Nusa Tenggara Aprimanda Mulya Rizki, Rifa; Syafriani; Amir, Harman; Zulhendra, Zulhendra
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 1 (2025): Februari
Publisher : Mataram University

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Wilayah Nusa Tenggara Barat memiliki aktivitas kegempaan yang tinggi. Sebelum terjadinya suatu kejadian gempa bumi, terlebih dahulu didahului oleh keadaan seismik tenang. Tujuan dari penelitian ini untuk mengetahui perubahan laju seismik yang diamati dari fenomena seismik tenang dan luas deformasi. Metode perubahan laju seismik yang digunakan adalah distribusi spasial z-value. Dan metode luas deformasi yang digunakan adalah rumusan Utsu dan Seki untuk gempa bumi M7,0 pada tanggal 5 Agustus 2018 dengan input magnitudo permukaan. Penelitian ini menggunakan data dari website USGS periode 1983-2023. Pada penelitian ini terdapat tiga zona fokus penelitian yaitu gempa bumi tahun 2009 (M6,6), gempa bumi tahun 2018 (M7,0) dan gempa bumi tahun 2018 (M6,9). Dengan menggunakan metode distribusi spasial z-value, wilayah dibagi menjadi beberapa grid. Nilai z dihitung pada setiap grid dan menggambarkan perubahan laju seismik. Fenomena tersebut dapat dilihat berdasarkan perubahan laju seismik yang telah diperoleh. Hasil yang diperoleh, pada zona pertama terjadi peningkatan aktivitas seismik sebelum gempa bumi 2009, zona kedua dan zona ketiga terjadi fenomena seismic quiescence yang mendahului gempa bumi 2018. Berdasarkan sebaran spasial z-value awal tahun 2023, terjadi fenomena penurunan aktivitas seismik di sebagian wilayah Nusa Tenggara Barat. Serta terjadi deformasi sebesar 1.091,44 km2 pada gempa bumi M7,0 tanggal 5 Agustus 2018. Hal ini patut diduga sebagai awal gejala gempa bumi di masa mendatang .

Analysis Of Seismic Quiescence Precursors Before The M7.4 Earthquake Of 28 September 2018 In Central Sulawesi Based On Seismotectonic Spatial Distribution And Earthquake Fracture Lengths zu, Zurahma; Syafriani; Dwiridal, Letmi; Zulhendra, Zulhendra
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 1 (2025): Februari
Publisher : Mataram University

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The Central Sulawesi earthquake with coordinates 2Â°30â€˜S -1Â°50â€™ N and 119Â°0'-124Â°20 E magnitude 7.4 in Palu, Donggala Regency on 28 September 2018. This earthquake was a significant and destructive earthquake in Central Sulawesi. A significant earthquake is preceded by a seismic quiescence. The aim of the study was to determine when the seismic quiescence occurred and seismic activity after the earthquake alongside fracture length. The method of analysis of seismic quiescence and fracture length is z-value and Wells and Coppersmith equation. Data processed with MATLAB and Zmap were 1478 events from 1983-2023. The study area is divided into several grids with sizes of 0.1Â°* 0.1Â°. The number of earthquakes included (N = 800, 700, 600, 500, 400, 300, and 200). The z-value was calculated for each grid based on the earthquake data organized in one grid and seismic activity after earthquake. The results of the analysis of the z-value calculation in each grid show of seismic quiescence before a significant earthquake. Based on the results of the spatial distribution of z-value in Central Sulawesi, the seismic quiescence preceded the 28 September 2018 earthquake event (M 7.4) by about 21 years beginning in 1990. When cut at 2019.6, there was a decrease in seismic activity again, which indicated that an earthquake would occur, so it was thought to be a trigger factor for future earthquake precursors. While the fracture length of the 7.4 Mw earthquake of 104,232 meters shows a positive correlation between magnitude and fracture length.

Estimation Of Maximum Ground Acceleration Value Based On Mentawai Earthquake Scenario Using Atkinson Boore and Zhao Khairunnissa, Shafira; Syafriani; Fauzi, Ahmad; Zulhendra, Zulhendra
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 5 No. 4 (2024): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v5i4.510

We have estimated the value and intensity of maximum ground acceleration in West Sumatra based on the Mentawai earthquake scenario by using the formulation of Atkinson Boore (2003) and Zhao (2006). This study aims to determine the PGA value of an area as the level of activity and intensity of the earthquake in West Sumatra region from the Mentawai earthquake scenario as a measure of damage caused by the earthquake and analyze its distribution. This study uses earthquake information data for the period 1900-2023 with magnitude > 7 SR and depth < 100 km and shear wave velocity model at a depth of 30 meters (Vs 30) sourced from the National Earthquakes Information Center US Geological Survey (NEIC/USGS) catalog. After that, calculations are carried out so that the estimated maximum ground acceleration value is obtained using the Atkinson Boore (2003) and Zhao (2006) formulas. The maximum ground acceleration and earthquake intensity values for each city/regency in West Sumatra were calculated with a 0.1Â° grid. The estimation results show that the largest values for each scenario are in Mentawai Islands and South Pesisir because those areas are close to the subduction zone. In addition, it is also influenced by the epicenter, magnitude and soil type in the region. So that the maximum ground acceleration value in West Sumatra ranges from 0.007 g - 2.117 g with earthquake intensity ranging from I - X+ MMI. This indicates that the area is vulnerable to damage if an earthquake occurs. Keywords: Earthquakes, Atkinson Boore, Zhao, PGA, Intensity

Analysis of Seismicity and Return Period of Earthquakes in South Pesisir Regency West Sumatra Province Using the Likelihood Method Husna, Azmi Asmaul; Syafriani; Hamdi; Letmi Dwiridal
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 1 (2025): Februari
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i1.589

The South Pesisir area was one of the areas that was rocked by an earthquake on September 30, 2009. The earthquake that occurred caused damage and loss of life. Based on these conditions, the South Pesisir Regency area was identified as an earthquake-prone area. Therefore, it is necessary to research seismicity and return period in the regency. This research used the statistical likelihood method to determine the accumulated rock stress, seismcity and return period of eartquakes. The data used is earthquake data for the period 1934-2023 with a magnitude â‰¥4 SR and a depth of â‰¤300 km. The results of this research provided an overview of the seismicity and return period in the South Pesisir Regency. Seismicity was determined based on rock stress condition (b-value) and on the level seismic activity (a-value). Based on calculations showed that the a-value and b-value for the 20-year and 90-year intervals ranged between 6.16-10.9 and 0.953-2.17, respectively. Earthquakes return periods at intervals of 20 years and 90 years for the magnitude range 4.0-4.4 produced almost the same return period, namely less than one year. Meanwhile, earthquakes with magnitudes of 4.5-6 had recurrence periods ranging from 1 to 63 years.

APLIKASI BAHAN BANGUNAN “BAMBU” PADA TEMPAT SANTAI (GAZEBO DAN DEGO-DEGO) MAHASISWA PROGRAM VOKASI UNG Syafriani; Abdi Gunawan Djafar; Alif Nurrahman l. Masi; Al Dimas F. Darkay
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 11 No. 2 (2023): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v11i2.551

This study aims to examine the application of bamboo building materials in the construction of gazebos and relaxation areas (dego-dego) as an implementation of project-based learning for students in the UNG Vocational Program. The research method uses a project-based learning (PBL) approach with stages of preparation, data collection through comparative studies, material delivery by lecturers, and evaluation of bamboo construction products. Activities included field visits to brick and concrete block factories, the creation of concrete models with various mixtures, and the practical application of gazebo construction using bamboo, wood, thatched roofs, palm fiber ropes, and other supporting materials. The results of the study showed a 70% success rate in students' mastery of knowledge and practical skills in applying bamboo as a sustainable construction material. Bamboo has been proven to have optimal structural characteristics as a lightweight, hollow material with bracing properties that strengthen construction. Despite group coordination challenges, this research has made an important contribution to developing an understanding of environmentally friendly construction material diversification and has laid the foundation for the development of sustainable material innovations in the future.

APLIKASI BAHAN BANGUNAN “BAMBU” PADA TEMPAT SANTAI (GAZEBO DAN DEGO-DEGO) MAHASISWA PROGRAM VOKASI UNG Syafriani; Abdi Gunawan Djafar; Alif Nurrahman l. Masi; Al Dimas F. Darkay
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 11 No. 2 (2023): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v11i2.551

This study aims to examine the application of bamboo building materials in the construction of gazebos and relaxation areas (dego-dego) as an implementation of project-based learning for students in the UNG Vocational Program. The research method uses a project-based learning (PBL) approach with stages of preparation, data collection through comparative studies, material delivery by lecturers, and evaluation of bamboo construction products. Activities included field visits to brick and concrete block factories, the creation of concrete models with various mixtures, and the practical application of gazebo construction using bamboo, wood, thatched roofs, palm fiber ropes, and other supporting materials. The results of the study showed a 70% success rate in students' mastery of knowledge and practical skills in applying bamboo as a sustainable construction material. Bamboo has been proven to have optimal structural characteristics as a lightweight, hollow material with bracing properties that strengthen construction. Despite group coordination challenges, this research has made an important contribution to developing an understanding of environmentally friendly construction material diversification and has laid the foundation for the development of sustainable material innovations in the future.

Key populations and PLHIVs’ expectation of inclusive HIV/AIDS services: A study of four puskesmas in Yogyakarta and Cilacap Mellen, Renie; Ida N Faizah; Syafriani; Puji Rahayu; Dwi Maiyanthi; Fithri Zamzam; Fajar Wahyuni; Yanri Subronto; Hasanbasri, Mubasysyir; Retna Siwi Padmawati
BKM Public Health and Community Medicine PHS8 Accepted Abstracts
Publisher : Universitas Gadjah Mada

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Objective: To describe the expectation of PLHIV and key populations regarding HIV/AIDS services, especially on pandemic COVID-19. Method: This study conducted a pilot questionnaire survey in Puskesmas Tegalrejo and Mantrijeron, Yogyakarta; and Puskesmas Cilacap Selatan 2, Puskesmas Kesugihan 2, in Cilacap Region, Central Java. The participants were 62 PLWHA and 60 key populations (transgender, male sex workers, IDUs, and sex workers). This paper uses the data from an open-ended item in the questionnaire on respondents' expectation of HIV services in the puskesmas. Result: Both PLHIV and key populations expected equal service, friendly and respectful services without differentiating from other patients. Health workers would be better to know about the diversity of gender and sexual orientation and educate about HIV/AIDS transmission to reduce the fear and stigmatization of the community. In addition, the rotation issues of health workers should not change the quality standards of HIV/aids services. PLHIVs expected that health workers do not disclose their status to others (which should have become the standard of health professionals’ practice) and provide complete support and counseling related to HIV/AIDS with explaining details to the patients. ARV stock is expected to get a one-month stock supply, and queuing for taking drugs. Furthermore, key populations expect flexible time on VCT tests, especially in pandemic COVID-19. Conclusion: The availability and access of puskesmas services for PLHIVs and key populations was significant progress in health care systems. Notes from users emphasize the need for management support in building inclusive services, where health and administrative workers and other puskesmas treated everyone in need equitably.

Challenges and facilitating factors in handling domestic medical waste during the COVID-19 pandemic Syafriani; Sutena, Marthinus; Padmawati, Retna Siwi; Hasanbasri, Mubasysyir
BKM Public Health and Community Medicine PHS8 Accepted Abstracts
Publisher : Universitas Gadjah Mada

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Objective: To describe the challenges and facilitating factors in handling domestic medical waste during the COVID-19 pandemic based on our community empowerment program in Dusun Ngrombo I, Karangmojo Village, Gunungkidul District, DIY. Content: During the Covid-19 pandemic, medical waste increased in the community, especially for families who were self-isolating at home. In our preliminary study, the community processes waste by burning, burying and throwing it into the environment. Expired medicines are even used as a mixture of plant fertilizers and animal feed. Public literacy about medical waste management is still limited. The local government has not provided medical waste facilities in public spaces. Waste management is not optimal due to the lack of coordination between the relevant government agencies. Furthermore, there has been limited effort from the local primary health care service (puskesmas) to solve medical waste problems. Limited human resources, budgets and different perspectives on regulations cause the puskesmas to resist in responding to these problems. Medical Waste Bank Program is a community waste collection system that manages household medical waste through local waste bank activities. Generally, the Waste Banks (Bank Sampah) in Indonesia only process domestic waste, this program innovates by providing community medical waste services that are needed, especially during this pandemic. Waste bank staff will process the waste that has been collected in the waste bank, then handed over to a third party (private company) through the puskesmas. This can help the puskesmas to reach medical waste in their working areas and also to prevent the transmission of infectious diseases in the community. Conclusion: The waste bank can become a movement to manage community medical waste. Each sector needs to work together in promoting health, providing adequate waste facilities, increasing human resource capacity, as well as monitoring and assisting in managing domestic medical waste.

Hubungan Antara Umur Dan Masa Kerja Dengan Keluhan Musculoskeletal Disorders (MSDs) Pada Pekerja Rumah Panggung di Kelurahan Woloan 2 Kecamatan Tomohon Barat Kota Tomohon: The relationship between age and length of service with musculoskeletal disorders (MSDs) among stage workers in Woloan 2 Village, West Tomohon District, Tomohon City Miranda T. Kojongian; Ellen B. Lomboan; Richard A. Palilingan; Syafriani; Ilham Salam; Yuliana Sattu
Jurnal Kolaboratif Sains Vol. 8 No. 12: Desember 2025
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/jks.v8i12.9740

Keluhan Musculoskeletal merupakan salah satu keluhan pada otot dan sendi yang disebabkan oleh gerakan berulang, postur tubuh yang tidak ergonomi, dan pengangkatan beban berat. Tujuan penelitian ini adalah untuk mengetahui hubungan antara umur dan masa kerja dengan keluhan Musculoskeletal disorders (MSDs) pada pekerja rumah panggung di kelurahan woloan 2 kecamatan tomohon barat kota tomohon. Jenis penelitian yang digunakan yaitu observasional analitik dengan pendekatan cross sectional. Populasi dalam penelitian ini adalah pekerja rumah panggung di Woloan 2 yang berjumlah 80 orang. Sampel dalam penelitian ini 80 orang, diambil menggunakan teknik total sampling. Pengumpulan data menggunakan kuesioner. Pengolahan data pada penelitian ini menggunakan uji spearman rho. Hasil penelitian antara umur dan keluhan musculoskeletal p – value = 0,000 (<0,05) dan keofisien korelasi r = 0,669 atau koefisien korelasi kuat dengan arah positif, dan hubungan masa kerja dengan keluhan musculoskeletal p – value = 0,000 (<0,05) dan koefisien korelasi r =0,459 atau koefisien korelasi sedang dengan arah positif. Kesimpulannya terdapat hubungan antara umur dan masa kerja dengan keluhan musculoskeletal pada pekerja dengan arah korelasi positif (+) atau searah

Gambaran Penerapan Perilaku Hidup Bersih dan Sehat (PHBS) di SD GMIM Urongo : Overview of the Implementation of Clean and Healthy Living Behavior (PHBS) at GMIM Urongo Elementary School Cesia Jesica Sesilia Tarussy; Mesak A.S.F Rambitan; Syafriani
Jurnal Kolaboratif Sains Vol. 8 No. 12: Desember 2025
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/jks.v8i12.9825

Latar Belakang: Perilaku Hidup Bersih dan Sehat (PHBS) merupakan langkah penting dalam upaya promotif dan preventif untuk meningkatkan derajat kesehatan masyarakat, terutama di lingkungan sekolah dasar. Sekolah sebagai institusi pendidikan memiliki peran strategis dalam membentuk kebiasaan hidup sehat sejak usia dini.Tujuan: Penelitian ini bertujuan untuk mengetahui gambaran penerapan Perilaku Hidup Bersih dan Sehat (PHBS) di SD GMIM Urongo tahun ajaran 2025/2026.Metode: Penelitian ini menggunakan metode deskriptif kuantitatif dengan populasi seluruh siswa kelas IV–VI dan guru di SD GMIM Urongo yang berjumlah 38 orang. Teknik pengambilan sampel dilakukan dengan total sampling. Instrumen penelitian berupa kuesioner dengan delapan indikator PHBS sekolah: mencuci tangan, mengonsumsi jajanan sehat, menggunakan jamban bersih, melakukan aktivitas fisik, memberantas jentik nyamuk, tidak merokok di sekolah, menimbang berat badan dan tinggi badan, serta membuang sampah pada tempatnya. Data dianalisis secara univariat dengan distribusi frekuensi.Hasil: Hasil penelitian menunjukkan bahwa perilaku mencuci tangan berada pada kategori baik (86,8%), penggunaan jamban cukup (81,6%), pemberantasan jentik nyamuk cukup (78,9%), dan membuang sampah cukup baik (92,1%). Namun indikator mengonsumsi jajanan sehat (76,3%), aktivitas fisik (97,4%), tidak merokok di sekolah (86,8%), dan menimbang serta mengukur tinggi badan (100%) masih tergolong kurang.Kesimpulan: Secara umum penerapan PHBS di SD GMIM Urongo masih belum optimal. Diperlukan kolaborasi antara pihak sekolah, orang tua, dan tenaga kesehatan untuk memperkuat edukasi, pengawasan, serta pembiasaan perilaku hidup bersih dan sehat pada siswa.

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