Abstract In recent years, the Trengguli-Kudus Road in Demak, Central Java, Indonesia has frequently experienced damage, even after repeated repairs. This road is located on one of main transportation routes island so it requires more attention and maintenance. study aims to identify compare damage concrete asphalt pavement using geophysical methods, 2D-resistivity with Wenner-Schlumberger configuration Ground Penetrating Radar (GPR) at KM 39+600 39+850. Secondary data from borehole logs pit...

Forecasting is a process of predicting future events based on past event data. One the time series models that can be used for forecasting Autoregressive Integrated Moving Average (ARIMA). The advantages ARIMA are in accuracy and flexibility its representing several different types series, but main limitation linear form model which causes to unable capture non-linear patterns An alternative modeling Artificial Neuron Network (ANN). ANN overcome weaknesses ARIMA, cannot handle nonlinear data...

Abstract The Covid-19 pandemic has caused geological mapping activities to be hampered. This study aims create a 3D virtual rock outcrop model which is compiled from 2D images with Measured Stratigraphy (MS), strike & dip and the value of physical parameters analyze structures in Wringinanom District, Gresik Regency. Analysis will contained form folding reconstructions parameter as validation descriptions fault orientation. research modeled 21 outcrops tested 6 core sedimentary samples....

The ever-increasing use of fossil fuels causes the climate to become unbalanced due resulting pollution. Renewable energy is gaining widespread adoption because it more cost-effective and eco-friendly. Using water as micro-hydro power plants or PLTMH can be a viable alternative non-renewable fuel sources. Indonesia one countries with greatest application potential for PLTMH, particularly in Batang Regency, Central Java Province. This study focused on reducing source electricity Regency by...

Malaysia is one of the countries in world experiencing landslides yearly due to natural events and human activities. Penang Island Malaysia’s second most developed state largest by population. It prone with devastating environmental impacts. Hence, need characterize its near-surface soil-rock conditions. This study uses remotely sensed data via frequency ratio (FR) techniques identify landslide-prone areas based on different categories landslide causative factors. To further understand...

Bulk natural ferrites based in iron sands were synthesized at room temperature by high energy ball milling. The reduced particle sizes of the milled 100 rpm selected time intervals 0, 2, 4, and 6 h. as-milled products then characterized x-ray diffraction (XRD), a vibrating sample magnetometer (VSM) vector network analyzer (VNA). results showed that magnetite phase contents, their mean size saturated magnetization about 95 nm 36–.50 emu g−1 without new phase. microwave absorbing...

Study on water balance in a small island is essential to be conducted. A normally has catchment areas so that most of the surface rain flows quickly into sea. Consequently, it causes limited recharge rainwater groundwater. When usage groundwater high, demand-supply could unbalance. It will certainly cause problems, such as seawater intrusion or crisis. There are numbers islands Indonesia; these islands, not been studied yet. This paper discusses Poteran- East Java, Indonesia. The area only...

The existence of mud volcano system in East Java is known from the ancient period, especially Surabaya. Gunung Anyar one manifestation was appeared close to residence. Because this phenomenon we have learn about impact neighbourhood. microtremor study conducted evaluate possible influence effect environment and get more information subsurface condition area. Microtremor geophysical methods which measure natural tremor or vibration earth, dominant frequency represent thickness soft sediment...

Metode Ground Penetrating Radar (GPR) merupakan metode geofisika non destruktif yang menghasilkan resolusi tinggi terhadap kontras dielektrik bawah permukaan. Dengan menggunakan GPR, penelitian ini dilakukan untuk mengidentifikasi kemenerusan pipa air dan kepadatan lapisan pada daerah "AYE". Frekuensi alat digunakan dalam pengambilan data adalah 270 MHz dengan jumlah lintasan sebanyak dua panjang tiap 20 m. Pengolahan program MATGPR software Matlab 2015a. Tahap pengolahan antara lain input...

Abstract The Bromo-Tengger Volcano Complex is a popular geotourism destination characterized by volcanic activity also unique geological and geomorphology settings. However, limited geophysical investigations have been conducted in this area, particularly using magnetic methods, to understand the subsurface conditions. Thus, study aims compare methods which are airborne ground survey identify sub-surface conditions of Complex. Airborne measurements were Geotron Proton Precision Magnetometer...

Jalan Raya Trengguli-Kudus yang terletak di jalur pantura (jalur pantai utara) beberapa kali mengalami kerusakan berulang, bahkan setelah diperbaiki. ini merupakan utama mobilisasi dan distribusi logistik Pulau Jawa sehingga signifikan pada jalan akan memengaruhi kegiatan sosial ekonomi. Dengan tujuan untuk mengidentifikasi kondisi bawah permukaan ini, digunakan metode geofisika resistivitas 2D Ground Penetrating Radar (GPR). Konfigurasi dalam adalah Wenner-Schlumberger. Data sekunder data...

Volume magnetic susceptibility measurements have been widely used in numerous studies related to river sediment characterization. A study of the transport distance effect toward frequency-dependent volume is needed identify superparamagnetic grain behavior sediments. The purpose this presence grains and obtain relation between distances samples were taken measured by using Bartington MS2B Susceptibilitymeter at two different frequencies 470 Hz 4700 Hz. measurement results show that directly...

Abstract In rock magnetism, Vibrating-Sample Magnetometer (VSM) data displays magnetic moment in specific field applied descending and ascending magnitude, which results a pattern called hysteresis loop. This loop characterizes different materials depending on its shape. recent years, the usage of computer software to analyze has become necessary due precision. Easily executable, intuitive, user-friendly open-source programs for analyzing VSM are still not widely available despite their...

Summary Java Island which is located north of the meeting between two plates, that The Indo-Australian Plate and Eurasian have several tectonic faults, as a form stress accommodation generated by adjacent subduction South. Tectonic fault local deformation zone accommodate movement plates through deep aseismic creeping well episodic earthquakes or in more layers shallow. Several previous GPS studies region were conducted focusing localized study around main region. Information on near-surface...

Peristiwa gempa bumi dan Tsunami merupakan bencana yang tidak bisa dihindari oleh masyarakat Indonesia sebagai negara terletak pada jalur tektonik aktif dunia. Akibat adanya pertemuan lempeng Indo-Australia daerah bagian Selatan Indonesia, menyebabkan kawasan ini memiliki nilai seismitas cukup tinggi. Salah satu sering terjadi peristiwa yaitu berada di subduksi Sunda. Pada ini, beda densitas antara Pulau Jawa Sumatera akibat perbedaan gaya kompresi kedua tersebut. Perbedaan diketahui dari...

The existence of the kendeng fault passing Surabaya is still subject study by researchers after being declared active National Earthquake Centre. was passed two segments Kendeng fault, segment and Waru segment, had an earthquake potential 6.5 M. In context disaster mitigation analysis, more detailed information needed relating to geometry position source with certainty, so that identification sources in detail. magnetotelluric method one geophysical methods able properly identify anomalous...

Gravity survey is one of the passive geophysical techniques commonly used to delineate geological formations, especially in determining basement rock and overlying deposit. Geologically, study area made up thick quaternary alluvium deposited on top older rock. The Muda River basin constitutes, approximately, more than 300 m unknown type. Previous studies, including drilling geo-electrical resistivity surveys, were conducted but none them managed conclusively determine type depth precisely....

Daerah penelitian ini beririsan dengan peta Cekungan Air Tanah (CAT) Palu yang merupakan gabungan beberapa akuifer. Digunakan Vertical Electrical Sounding (VES) penggambaran sebaran nilai lapisan resistivitas secara vertikal 1 dimensi. Penelitian menggunakan konfigurasi schlumberger pada daerah 12 titik ukur VES (VES1 – VES12). Hasil pengolahan dimodelkan 3 dimensi, selanjutnya dikorelasikan CAT untuk determinasi zona berpotensi sebagai Geologi terdiri dari Qap dan QTms masing-masing...

Abstract Previous studies in Gondang Subdistricthave identified underground mud reservoirnear a rock intrusion, while another study near Subdistrict has deep fault structures. This will identify the distribution and characteristics of possible geological features area using magnetotelluric (MT) method to further describe relationship between related local geology. MT data measurements were conducted on 7 stations alonga north-south line, then modelled 2D nonlinear conjugate gradient...

The initial study that we carried out regarding the Kwanyar sub-district area, Bangkalan, East Java, shows need to optimize land productivity and analyze potential for farming build welfare of people subdistrict. Preliminary spatial data analysis related topography as a result Digital Elevation Model (DEM) processing that: is dominated by flat slopes (0-8°) compared northern region sub-district, while runoff water low flow coefficient (0- 0.25) which means most area has absorption capacity...

Salah satu wilayah pertanian aktif di Kabupaten Bangkalan adalah Desa Pandanan. Tingginya potensi degradasi lahan Pandanan menjadikan upaya mitigasi harus segera dilakukan. yang dapat dilakukan melalui pengabdian kepada masyarakat (abmas) oleh tim dari Institut Teknologi Sepuluh Nopember dan Badan Riset Inovasi Nasional terkait optimasi kesuburan pertanian. Kegiatan abmas berfokus pada tiga tahap utama yakni: (1) Sosialisasi/penyuluhan pentingnya berbasis data (satelit validasi lapangan),...

Abstract Gravity survey plays an important role in early stage of subsurface imaging geothermal system. The aim this study is to understand the structure and possibly heat source based on rock density distribution with three dimensional inversion modeling (3D). In 2010, Center Mineral Resources, Coal Geothermal Indonesia was performed gravity at Lili Sepporaki area 205 stations within a 10 x km coverage area. complete Bouguer anomaly obtained 2.8 g/cm3 used do 3D modelling. anomalies ranging...

Abstract The southern part of Java Island is located between the two plates subduction zone, therefore this region had an active tectonic and volcanic activities. Those made a deformation geology around island. This research was conducted to know volume deep geological structures provide overview disaster warning systems in East region. that has been carried out using numerous geophysical methods such as seismic not able indicate internal structures. needed for innovation used integration...

Abstract The subsurface geological condition of East Java is an area that crossed by active fault structure. National Earthquake Center revised the Indonesian Hazard and Source Map 2017 with discovery new faults surrounding Kendeng Zone, Java. This research was conducted using Magnetoteluric (MT) method which has high penetration therefore it able to map geometry deep structures beneath surface. Measurements were made at 11 measuring points focusing on Blumbang Fault (M6.6) in Lamongan...