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All Journal Jurnal EECCIS Journal of Innovation and Applied Technology Natural B Network Engineering Research Operation [NERO]

Sunaryo Sunaryo

Jurusan Geofisika Universitas Brawijaya

Author-ID : 2816795

Computer Science & IT Engineering Environmental Science

Published : 12 Documents Claim Missing Document

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Microtremor and Geolistrik Resistivity Study Around the Trans Timor Primary Arterial Road for Disaster Mitigation Harti Umbu Mala; Adi Susilo; Sunaryo Sunaryo
Natural B, Journal of Health and Environmental Sciences Vol 3, No 1 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

The research on microtremor and geoelectric resistivity around Trans Timor Primary Artery Road to disaster mitigation, has been done. The aims of this research were to obtain the Peak Ground Acceleration (PGA) value, the soil dominant frequency, seismic vulnerability index and to estimate the thickness of sediment layer. Microtremor data collection was done by using a three-component seismometer, DS-4A feedback short-period, at 52 points with 250 m interval. Dominant frequency and amplification factors were obtained by using curve analysis method, horizontal to vertical spectral ratio (HVSR). The PGA value was calculated using Kanai empirical equations, where the data of dominant period were obtained from the inversion of frequency values while the parameters of the earthquake were based on seismic events in the last 50 years, from 1963 to 2013 with magnitude of ≥ 3. Geoelectric measurements were conducted using a Resistivity-meter OYO, based on Wenner Schlumberger configuration and it was divided into two lines, with length of 400 m each. From the results obtained by PGA value is ranged between 80 and 500 gal with level of risk moderate two to very large one. The distribution value of the soil dominant frequency was 0.62 Hz-18.27 Hz, while the distribution of the seismic vulnerability index ranged from 0.21 to 21.83. The type of soil is dominated by clay and alluvium as top soil and its thickness varies from 10 m to 50 m, strengthened by limestone as bedrock.

Estimation of 2½ Dimensional Surface Structure in Kelud Volcano Region Based on Gravity Survey M. Rahman; Sunaryo Sunaryo; Adi Susilo
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

The research in the area around Kelud Volcano based on gravity survey has been conducted in order to determine subsurface structure and constituent composition. The research was done in July 2012 - May 2013 in the area around Kelud Volcano covered Blitar, Kediri, Wlingi, and Ngantang. In this research, the equipment that been used is gravity-meter Lacoste & Romberg type G-105. Analysis of data from field measurements performed with the followed step: calculated the correction of Bouguer anomaly, projected to the flat plane and separated regional anomaly and residual anomaly with polynomial fitting method. Interpretation was performed on three cross sections: section AB, CD, and EF. For results of cross-section AB, the values of ρ for andesite, lava, basalt and sandstone are 2.61 gr/cm3, 3.1 gr/cm3, 2.99 gr/cm3 and 1.61 gr/cm 3respectively. For cross-section CD, the values of ρ for andesite and sediment are 2.5 gr/cm3and 2.38 gr/cm3. For cross-section EF, the values of ρ for basalt, sandstone, and sediment are 2.85 gr/cm3, 1.6 gr/cm3, and 2.4 gr/cm3. From the results of models shows that basalt and andesite rocks is dominant in the region of Kelud Volcano.

Prediction of Structure Pouch Magma Volcano Kelud Gravity Data Based Method Using Equivalent Point Mass Sandy Vikki Ariyanto; Sunaryo Sunaryo; Adi Susilo
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

The observation has been done by gravity method on the date of 1 July to 12 August 2012 in the Kelud volcano area, Pare, Kediri, Blitar and Ngantang in order to determine the structure of magma pocket. Data analisis from field measurements performed with the following correcting the data includes: convert to mgal, drift correction, tidal correction, latitude correction and topography correction, then obtained a complete Bouguer anomaly values. Subsequently projected onto a flat surface (Damnpey) by using matlab program and resolve regional anomalies with anomaly residual. Qualitative interpretation is done by reading the complete Bouguer anomaly contour pattern, while the quantitative interpretation is done by creating a 2D cross section on the four A-A’, B-B’, C-C’, and D-D’ lines.Based on projection to the flat surface (Dampney) with equivalent field depth of 3500 and equivalent field height of 200 obtained convergent anomaly contour so that anomaly values become stable, based on quantitative interpretation 2D cross section model of A-A’, B-B’, C-C’ and D-D’ lines and describing structure of magma pocket. Slice anomali density contrast of A-A’ at -2,930 gr/cm3 assumed as magma chamber with 900 meter dept while B-B’ slice at -2,910 gr/cm3assumed as magma chamber with 943 meters dept, C-C’ slice at -2,930 gr/cm3 assumed as magma chamber with 914 meters depth, and D-D’ slice at -2,930 gr/cm3 assumed as magma chamber with 943 meters depth.

Estimation of Reservoir Rock Formation and Hood Stone in Manifestation Area of Tulehu Salahutu Healer - Ambon Island Based on Magnetic Survey Jufri Jufri; Sunaryo Sunaryo; Adi Susilo
Natural B, Journal of Health and Environmental Sciences Vol 3, No 2 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

The magnetic survey has been done in the area of geothermal manifestations Tulehu, Salahutu, Central Maluku in Ambon Island which has high temperature reservoir. The aim of this research was to know the formations reservoir and cap rock in the area of geothermal manifestations Tulehu. The measurement of data is done using magnetometer PPM type G-856, in the area of around the hot springs Hatuasa Tulehu broadly of 1.78 km x 1.25 km, which consists of 238 measuring points with spacing 50 m. Data processing to begin with IGRF correction, diurnal correction, flat surface reduction, upward continuation and reduction to the pole. Interpretation was based on three cross - section models: slice AB, BC, and DE. The modeling of the results indicates the presence of caprock formations suspected as alluvial (Qa) with susceptibility contrast 0.0102 SI to 0.0416 SI, whereas the reservoir rocks formation is suspected rocks of volcanic Ambon (Tpav) had been around demagnetization with susceptibility contrast 0.0001 SI, in the deepness of 1850 m to 2775 m the surface below.

Co-Authors Achmad Teguh Wibowo Adi Susilo Adi Susilo Adi Susilo Agus Naba Ahmad Fahrudi Setiawan Asma Naili Salsabila Bambang Susilo Dwija Wisnu Brata Erni Yudaningtyas Gatot Ciptadi Harti Umbu Mala Herditomo Herditomo Jufri Jufri KIKI FIBRIANTO M. Aziz Muslim M. Rahman Mohammad Taufan Asri Zaen Muhammad Arwani Sandy Vikki Ariyanto Umam, Busro Akramul Wahyu Kurnia Dewanto Wijono Wijono

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