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Muhammad Djunaidi
Universitas Muhammadiyah Maluku Utara

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Initiation of Disaster Resilient Villages in Tubo Village, North Ternate District - Ternate City Abdul Kadir Dahlan Arif; Muhammad Djunaidi; Ida Kurnia Waliyanti
BIOSAINSTEK Vol 7 No 1 (2025): Jurnal BIOSAINSTEK
Publisher : UNIVERSITAS MUHAMMADIYAH MALUKU UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/biosainstek.v7i1.2378

Abstract

The city of Ternate is a small city on a quaternary volcanic island with a strato volcano type that develops in the Halmahera island area as part of the Pacific circumference. The city of Ternate, as a small city that continues to develop, has complex problems related to limited building space and the potential threat of very diverse natural disasters. Tubo Village is one of the areas that is a potential threat point from the Gamalama volcanic eruption. The Tubo sub-district area is part of the succession of mature to old Gamalama volcanoes which have episodes of Gamalama volcanic eruptions, including direct eruption impacts in the form of laharic material, volcanic ash and lava flows. Tubo Village also has a history of the impact of volcanic eruptions in the form of laharic floods which have had an impact on physical victims and fatalities. Disaster Resilient Village is one of the best solutions that must be implemented with the aim of building the preparedness of Tubo residents to face volcanic eruption disasters. This initiation program is a collaboration with Pertamina FT Babullah and the Ternate City Government.
Identification of Groundwater Using Geoelectric Method in Tobololo Village, West Ternate District Ternate City, North Maluku Province Abdul Kadir Dahlan Arif; Wawan A.K Konoras; Letris Fara; Muhammad Djunaidi; Ibrahim Husni
BIOSAINSTEK Vol 6 No 2 (2024): Jurnal BIOSAINSTEK
Publisher : UNIVERSITAS MUHAMMADIYAH MALUKU UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/biosainstek.v6i2.2394

Abstract

Ternate City is the most densely populated area both demographically and building, this causes the need for clean water to increase, by looking at the geological structure of Ternate City which is most of the area is rock, of course it is an obstacle in itself in meeting the need for clean water The purpose of the activity is to obtain an overview of the availability and potential of groundwater that can be exploited in the study area, so that it can be used as an alternative to raw water supply planning. with indications that there is water at a depth of 160 to 190 meters, Based on the character pattern of the constituent rocks, there are sandstones, and tuff and subsurface contour patterns. Red, There are andesite rocks in the form of lava and brexi andesite. Dark Green – Light Green, There are clay rocks, this type of rock is included in impermeable rocks Orange Color: There are laharic brexi rocks, in this position it is very unlikely that water can be trapped, because laharic brexi is a lateral rock deposit, while clay is the opposite, which is characterized by impermeabl rocks, Blue Color, It is a puddle of surface water at a depth of 10 to 20 meters.
Evaluation of Transport Roads at PT Aneka Tambang Tbk's Pakal Island Site, East Halmahera Regency, North Maluku Province Muhammad Djunaidi; Sarna Winsi Harun; Husaen Salahu
BIOSAINSTEK Vol 8 No 1 (2026): Jurnal BIOSAINSTEK
Publisher : UNIVERSITAS MUHAMMADIYAH MALUKU UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/biosainstek.v8i1.2697

Abstract

PT. Aneka Tambang Tbk is one of the companies engaged in the laterite nickel mining industry operating in East Halmahera Regency, using the open cut mining method. Based on field observations, during the rainy season, the roads are often slippery and muddy, and the road surface becomes bumpy because hauling activities are carried out even during the rainy season. During the dry season, the roads become dusty, which can interfere with the visibility of transport unit drivers. The road width complies with the American Association of State Highway and Transportation Officials (AASHTO) standard of 12.25 meters. The width of the road is 14.2 meters in segments 1-2, 13 meters in segments 3-4, and 14.3 meters in segments 5-6, which can be safely traversed, while the width of the straight road in segment 7 does not meet AASHTO standards. - Segment 8 is 10 meters wide, so an additional 2.25 meters of road width must be added to ensure safe passage. The transport road width at turns that complies with AASHTO standardization is 26.82 meters. This is found in segments 1 - segment 2, which is 28.3 meters, segments 3 - segment 4, which is 27.6 meters, and segments 5 - segment 6, which is 28 meters, so it can be passed safely.
Co-Authors Abdul Kadir Dahlan Arif Abdul Kadir Dahlan Arif Husaen Salahu Ibrahim Husni Ida Kurnia Waliyanti Letris Fara Sarna Winsi Harun Wawan A.K Konoras