Bencana tanah longsor semakin sering terjadi akhir-akhir ini di Kabupaten Bogor termasuk di Kecamatan Sukajaya. Bencana longsor telah terjadi secara masif, menyeluruh dan waktu yang bersamaan di Kecamatan Sukajaya, pada tanggal 1 Januari 2020 . Kecamatan Sukajaya termasuk dalam zona bahaya tanah longsor tinggi. Banyak faktor yang menyebabkan terjadinya tanah longsor di Kecamatan Sukajaya, yaitu: kelerengan, kondisi geologi dan tanah, tataguna lahan, pola drainase, curah hujan, dan aktivitas manusia. Faktor dominan yang paling berpengaruh adalah: curah hujan harian yang ekstrim sebelum dan saat terjadi longsor, jenis batuan vulkanik yang membentuk tanah sangat tebal dan gembur, dan kemiringan lereng yang curam-sangat curam. Analisis berbagai faktor penyebab longsor, zonasi tanah longsor serta analisis mekanisme longsor, akan sangat membantu dalam pananganan dan antisipasi bencana ke depan. Penataan kawasan pasca bencana longsor sangat diperlukan untuk bisa mengurangi risiko bencana serta membangun kawasan yang aman berkesinambungan. Banyak hal yang bisa dilakukan dalam penataan kawasan longsor tersebut antara lain adalah: daerah bekas dan rawan longsor dijadikan kawasan konservasi, relokasi penduduk yang terancam ke tempat yang aman, pengaturan drainase, penguatan tebing dan lereng jalan, menghindari tinggal pada lereng bukit serta alur sungai, penghijauan dengan tanaman yang keras dan berakar kuat. Pembentukan kesiapsiagaan masyarakat juga sangat dibutuhkan untuk membentuk masyarakat yang tangguh terhadap bencana tanah longsor.

Purpose of the study: The position of Indonesia at the point of three plates of the earth and its location in the tropics makes it vulnerable to disasters. To face the possible disaster, Indonesia Armed Force following its mandate based on Law No. 34 of 2007, synergize with the National Board of Disaster Management to design disaster management cooperation through joint exercise training routinely until 2015.Methodology: The research used a qualitative method, with primary data in the form of interview and observation, and secondary data were obtained from related documents, such as meeting notes and data on the deployment of troops to the disaster area. Main Findings:The results show that the synergy between two institutions through the cooperation of personnel training, considering the strengths of each institution that can be mutually reinforcing in disaster management is very important to be continued. Applications of this study:This study which about military operations other than war (MOOTW) can be useful in every country because of this research look at the synergy between the military and other institutions in disaster management, Social Science, Security Studies and Social Science.Novelty/Originality of this study: Research on military operations other than war generally looks more at how the military serves as peacekeepers in conflict-prone areas. Very little research has examined the synergy of the military and other institutions in tackling natural disasters. 112 |www.hssr.in © Djuyandi et al.disaster management as the response to the Indian Ocean tsunami in 2004 and the need to review and reform the disaster management system. It assigns the function of BNPB to coordinate the implementation of disaster management in a well planned, integrated, and comprehensive action.On the other hand, the Indonesian Armed Forces (TentaraNasional Indonesia, TNI) is mandated to respond to disaster and is integrated into the system at the level of first response. The TNI is considered a part of the government disaster response effort and its mandate in disaster response is mentioned in Law No. 34/2004 on the Indonesian Armed Forces. Based on the doctrine of Military Operations Other Than War (MOOTW), TNI coordinate with BNPB helping to respond to the impact of natural disasters, displacement, and delivery of relief aid, and assisting with search and rescue activities.Indonesian Armed Force has the duty and responsibility to assist the government and society in disaster management, to overcome the disaster, starting from the disaster mitigation until the phase after the disaster, with coordination with BNPB as a focal point of disaster management. Indonesia Armed Force has a more intensive synergy with BNPB through Operational Technical Training and Coordination of Rapid Response for Disaster Relief for military personnel. Through it is provided disaster management education, overcoming the limitations of skills, knowledge, and equipment possessed by personnel Indonesian Armed Force.The synergies of both institutions i...

<p><span style="font-size: medium;">Satu daerah yang diduga terdapat sistem panasbumi adalah daerah Gunung Pancar, Bogor, Jawa Barat.<em> </em>Beberapa mata air panas yang muncul di sekitar daerah penelitian memperkuat dugaan adanya sistem panasbumi di daerah tersebut<em>.</em> Metode geofisika yang dapat digunakan untuk mengidentifikasi sistem panasbumi adalah Metode Audio Magnetotelurik (AMT). Penelitian ini menggunakan metode AMT untuk mendapatkan gambaran bawah permukaan dengan pemodelan 1D dan pemodelan 2D. Pengolahan data dilakukan dengan menggunakan <em>software</em> MT Editor, Interpex, dan Petrel. <em>Geoelectrical</em> <em>strike</em> digunakan untuk mengetahui arah <em>strike</em> bawah permukaan dimana nilai kontras resistivitasnya dapat diindikasikan sebagai gangguan geologi. Data yang digunakan adalah data <em>angle</em> dan <em>radius</em> pada <em>software</em> MT Editor. Sementara <em>software</em> yang digunakan untuk membuat diagram roset adalah <em>software</em> GeoRose. Hasil pemodelan menunjukkan adanya komponen panasbumi berupa <em>claycap </em>(1 Ω.m – 10 Ω.m) dan <em>reservoir </em>(10 Ω.m – 20 Ω.m) pada kedalaman 300 m hingga 2000 m. Lapisan <em>young sedimentary rock </em>diinterpretasikan sebagai zona aliran air panas dengan nilai tahanan jenis sebesar 10 Ω.m – 100 Ω.m. Sistem panasbumi di daerah penelitian diduga dikontrol oleh struktur geologi berupa sesar mendatar, antiklin, dan sinklin yang berkembang di bagian timurlaut daerah penelitian. </span></p><p><em style="font-size: medium;">T</em><em style="font-size: medium;">he areas that possibly had geothermal system is Mount Pancar, Bogor, West Java. There are several hot springs found around the study area. The geophysical method that can be used to identify the geothermal system and geological structure is the Audio-Magnetotelluric Method (AMT). AMT method is used to obtain subsurface overview with 1D modeling and 2D modeling. Data processing is done by using MT Editor, Interpex, and Petrel software. Geoelectrical strike is used to determine the direction of the subsurface strike by resistivity value. The most dominant angle and radius data from software MT Editor is used to make rosette diagram to show the geoelectrical strike. The results of 1D modeling showed the geothermal component such as claycap (1 Ω.m - 10 Ω.m) and reservoir (10 Ω.m - 20 Ω.m) at a depth of 300 m to 2000 m. The young sedimentary rock layer is interpreted as a discharge zone with a resistance value of 10 Ω.m - 100 Ω.m. The geothermal systems in the study area might be controlled by geological structures in the northeast of the study area.</em></p>

Hypocenter relocation is one of the keys to success in the analysis of seismicity induction in underground mines. Overburden thickness, topography, geological complexity, and mining activities can result in newly induced seismicity that can endanger the safety of underground mine workers. The relatively narrow underground mine area requires the most accurate hypocenter location information possible. The double-difference algorithm approach is one of the keys to overcoming this problem. The double-difference method is a relative location method that tries to minimize the residuals between the observed and calculated travel time differences for pairs of microseismic events at each station, by adjusting the differences between all pairs of events at each station repeatedly. In this study, we utilized microseismic measurement data in the deepest underground mine in Indonesia. A total of 1783 seismic events were successfully relocated. The relocation results show the rock mass stress which is illustrated by the distribution of events around the cave, especially the abutment area and underground mining tunnels.

510 minutes of work time a day with a break of 30 minutes is felt by employees of PT. Yogya Indo Global is too heavy. This company, which is engaged in wood processing, has 4 work stations, namely the Plenner process station, the Jointer process, Telthing and cutting parts. To reduce the physical workload in this study will be determined the length of rest time using the Indirect Assessment Method with categories of physical (physiological) workload, pulse (beats / minutes), classification% CVL (Cardiovasculair Load), calculating energy consumption, and calculate the need for rest. The study was conducted at rest at 09.30 and at 15.00 WIB. Pulse measurements are carried out using the 10 Pulse Method which then affects the amount of energy consumption. Based on the research results, it is known that at the Plenner machine work station, the Jointer and Telthing machines are in the classification of% CVL, the workload is due to the level of 30%-60%. Based on the results of the calculations, the work station for the Plenner, Jointer, Telthing and cutting process needs to be added by each time by 10 minutes, 5 minutes, 13 minutes and 10 minutes at 09.30 and the addition of 28 minutes, 25 minutes, 35 minutes and 15 at 3:00 p.m..