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We are pleased to present Volume 36, Issue 1 (June 2026) of Riset Geologi dan Pertambangan, featuring twelve articles that highlight recent advances in geological hazards, volcanology, mineral resources, and environmental geology. Several contributions focus on geological hazards and risk assessment. These include gravity-based analysis of subsurface fault structures associated with the Galunggung Caldera sector collapse, identification of … Continue reading Riset Geologi dan Pertambangan Volume 36 No 1 (2026)

Hybrid turbidite–contourite systems are present where gravity-driven and bottom-current processes interact. Although recent studies have advanced our understanding, deciphering the relative roles of downslope and alongslope processes in shaping the deep seafloor remains an important subject of investigation. The Tarakan Basin, offshore northeastern Borneo, is a prolific hydrocarbon province, yet its modern sedimentary systems are … Continue reading Hybrid turbidite–contourite systems in the modern Tarakan Basin: seismic sedimentology and analogue for subsurface storage (Nugraha & Maulin, 2025)

Journal of Volcanology and Geothermal Research https://doi.org/10.1016/j.jvolgeores.2025.108472 The western Java region is situated along the Sunda Arc, which is formed by subduction of the Indo-Australian Plate beneath the Eurasian Plate. The subduction process causes seismic activity in the Wadati-Benioff zone of the descending slab, produces a chain of active volcanoes, and forms numerous faults in … Continue reading Seismic velocity structure beneath the western Java region, Indonesia, from local earthquake tomography