A5067511989- earthquake and tectonic studies
- Geological and Geophysical Studies
- Geophysics and Gravity Measurements
- GNSS positioning and interference
- Earthquake Detection and Analysis
- High-pressure geophysics and materials
- Seismology and Earthquake Studies
- Geological and Geochemical Analysis
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Seismic Waves and Analysis
- Disaster Management and Resilience
- Geodetic Measurements and Engineering Structures
- Flood Risk Assessment and Management
- Seismic Performance and Analysis
- Remote Sensing and Land Use
- Landslides and related hazards
- Disaster Response and Management
- Ionosphere and magnetosphere dynamics
- Statistical and numerical algorithms
- Oceanographic and Atmospheric Processes
- Geological Modeling and Analysis
- Soil Moisture and Remote Sensing
- 3D Surveying and Cultural Heritage
- Ocean Waves and Remote Sensing
- Earthquake and Tsunami Effects
Bandung Institute of Technology
2016-2025
University of Mataram
2024
Telkom University
2024
Kyoto University
2022
Meteorological, Climatological, And Geophysical Agency
2016-2018
Nagoya University
2003-2014
Abstract We use Global Positioning System (GPS) measurements of surface deformation to show that the convergence between Australian Plate and Sunda Block in eastern Indonesia is partitioned megathrust a continuous zone back‐arc thrusting extending 2000 km from east Java north Timor. Although this region has been reported previously, its extent mechanism partitioning have hitherto conjectural. GPS observations establish occurs via combination anticlockwise rotation an arc segment called Sumba...
Indonesia is one of the most seismically active countries in world, and its large, vulnerable population makes reliable seismic hazard assessment an urgent priority. In 2016, Indonesian Ministry Public Works Housing established a team earthquake scientists engineers tasked with improving input data available for revising national map. They compiled results recent fault studies using geological, geophysical, geodetic observations, as well new comprehensive catalog including hypocenters...
Abstract Land subsidence in cities along the northern coastline of Java has been at a worrying level. Monitoring efforts using geodetic data reveal that Jakarta, Pekalongan, Semarang, and Demak subside least ~9x faster than present-day rate global sea level rise, which affects cities’ future urban viability. In this study, we publish time series precise 3D displacements observed by twenty continuous Global Navigation Satellite System (GNSS) stations between 2010 2021. These are first...
The Great Sumatran Fault system in Indonesia is a major right‐lateral trench‐parallel that can be divided into several segments, most of which have ruptured within the last century. This study focuses on northern portion fault contains 200‐km‐long segment has not experienced earthquake at least 170 years. In 2005, we established Aceh GPS Network for System (AGNeSS) across this segment. AGNeSS observes large displacements include significant postseismic deformation from recent megathrust...
Summary On 28 September 2018, 18:02:44 local time, the Magnitude 7.5 earthquake accompanied by a tsunami and massive liquefaction devastated Palu region in Central Sulawesi, Indonesia. Comprehensive post-disaster surveys have been conducted, including field survey of surface ruptures, LiDAR, multibeam-bathymetry mapping, seismic-reflection survey. We used these data to map fault ruptures measure offsets accurately. In contrast previous remote-sensing studies, suggesting that broke an...
On 15 January 2022, a VEI 5 eruption occurred at the submarine Hunga Tonga-Hunga Ha’apai (HTHH) Volcano in Southwest Pacific, causing an ash plume reaching height of 50–55 km. The generated strong acoustic-gravity waves near-field and stations all over world recorded Lamb (LW) that travelled around earth multiple times speed ~0.3 km/s. Here we report ionospheric anomalies due to LW Indonesian islands, 5000–10,000 km away from volcano, terms changes total electron contents (TEC) using...
Along the Java trench Australian–Oceanic plate is moving and pushing onto subducting beneath continental crust at a relative motion of about 70 mm/yr in NNE direction. This subduction-zone process imposed tectonic stresses on fore-arc region offshore land Java, thus causing formation earthquake fault zones to accommodate movement. Historically, several large earthquakes happened including West Java. research use GPS surveys method study inter-seismic deformation three active faults (i.e....
The Sunda arc forms the southern border of Indonesia Archipelago, where Indo-Australian plate is subducted beneath Eurasia. age subducting increases from Sumatra in west to Flores east. increase consistent with an dip along and increasing depth seismic activity. motion Australia respect West Java 68 mm/yr a direction N11E orthogonal trench. A number active faults characterizing this area include Cimandiri fault, Lembang fault Baribis fault. This research uses campaign continues GPS data make...
Land taxation, mainly the and Building Tax (LBT), is a critical revenue source for local governments in Indonesia, yet its contribution remains suboptimal due to inefficiencies assessment administration. This study focuses on Lebak Regency optimize Sales Value of Taxable Objects (SVTO) assessment, key determinant LBT revenue. Using spatial analysis, Zones (LVZ), socio-economic data, research evaluates ratios identify discrepancies between SVTO market values. Adjustments are proposed based...
The Prambanan Temple cluster is a world heritage site that has significant value for humanity, multiple zone arrangement of highly ornamented towering temples, and Hindu architectural pattern design. It lies near the Opak Fault, at foothills Mount Merapi, on an unstable ground layer, surrounded by human activities in Yogyakarta, Indonesia. site’s vulnerability implies necessity 3D digital documentation its conservation, but complexity poses difficulties. This work aimed to address this...
A tsunami disaster can cause significant economic losses for a tourism area like Batukaras Village, which is located on the southern coast of Java Island. This paper tries to elaborate calculation in areas due damage buildings, loss land production and income based high-resolution geospatial data. The data are derived from UAV photogrammetry surveys run-up models. worst-case scenario run-off model provides an inundation 43 ha with 185 buildings 24.4 productive land. estimated amounted IDR...
One of the factors decreased productivity rice fields is agricultural hazards that occur in Indonesia due to climate and weather changes. way reduce impact by providing a need for information on areas affected so it can be used decision making food security. This research conducts spatial modelling integrates DEM, land cover, precipitation data determine flood drought areas. calculates agriculture hazard using 4 different time scenarios: 5, 10, 25, 50 years obtain comprehensive investigation...
Java Island, located in Indonesia, is the country’s main island, with a population of 150 million, more than half country. There are at least four big cities on island that have seen fast development last 30 years. The land subsidence (LS) issue caused by groundwater overexploitation, compaction, and geological setting, has been known for 20 However, past studies mostly focused one particular important area, while picture LS whole often overlooked. This study utilized Sentinel-1 Synthetic...
A tsunami can cause significant economic losses for tourism areas like Batukaras Village, which is located on the southern coast of Java Island. This paper seeks to elaborate calculation in due damage buildings, loss land production, and income, based high-resolution geospatial data. The data are derived from UAV photogrammetry surveys run-up models. worst-case scenario run-off model provides an inundation area 43 ha with 185 buildings 24.4 productive land. estimated disaster amounted IDR...
This study examines the conversion strategy of 2D to 3D cadastral maps by standardizing height limits land rights based on LU/LC. To achieve maps, research proposes a considering factors. The dimension faces challenges in determining maximum heights for features like buildings, given varying regional regulations. As solution, concept surface feature (SFH) is applied along with LU/LC classification. Economic considerations, such as state revenue from taxes, are also factored into proposed...
Abstract We analyzed synthetic aperture radar interferometry (InSAR) to reveal surface deformation associated with the 26 May 2006 Yogyakarta earthquake, for which fault location and geometry have not been clearly determined. Our results demonstrate that occurred ∼10 km east of Opak River thought be source event probable causative delineated in this study is consistent aftershock epicenters determined by a temporary seismic network. The trace bends at its southern termination toward as if it...
In Indonesia, tsunamis are frequent events. 2000–2016, there were 44 tsunami events in with financial losses reaching 43.38 trillion. 2018, a occurred the Sunda Strait due to eruption of Anak Krakatau Volcano, which caused many fatalities and much building damage. This study aimed detect damage Labuan District, Banten Province. Machine learning methods used using random forest object-based techniques. No previous research has combined selected predictors into scenarios; hence, novelty this...
Responding to cost inefficiency in the Indonesian cadastral mapping system, this study aimed analyze implementation of integrated activities, namely complete systematic land registration, assessing value zones, and regional stewardship balance. This employed an operational management particularly focusing on financial aspects, using data envelopment analysis (DEA), a non-parametric technique for evaluating relative efficiency decision-making units. These approaches are rarely explored...