Articles

Found 17 Documents
Search

PARTISIPASI MASYARAKAT DALAM MENGURANGI RISIKO KERUSAKAN SITU-SITU DI KECAMATAN CIMANGGIS, KOTA DEPOK Dewanti, Tiffa Yuki; Naryanto, Heru Sri
Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana Vol 2, No 2 (2018)
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Original Source | Check in Google Scholar | Full PDF (530.807 KB)

Abstract

ABSTRACTDepok City has a function as a water catchment in reducing flooding in Jakarta City and in Depok City itself, the existence of existing sites is very important to be maximized. At present there are only 21 small lake in Depok City whose existence is still maintained. The conditions there each year decrease both in terms of quality and quantity. There are 6 small lake in Cimanggis subdistricts, namely: Situ Gadog, Situ Pedongkelan, Situ Rawa Kalong, Situ Tipar, Situ Jemblung, and Situ Rawa Gede, which as a whole have an area of 32.4 Ha. To maintain small lake preservation in the Cimanggis sub-district, damage risk reduction is urgently needed to sustain the small lake's existence in a sustainable manner. There are 5 variables of community participation in damage risk reduction in Cimanggis sub-district. Five variables to measure the level of community participation are community participation in the form of thoughts, community participation in the form of property, community participation in the form of energy, community participation in the form of skills, and community participation in social forms. Keywords: Community participation, small lake, Cimanggis, damage risk reduction
ANALISIS POTENSI KEGEMPAAN DAN TSUNAMI DI KAWASAN PANTAI BARAT LAMPUNG KAITANNYA DENGAN MITIGASI DAN PENATAAN KAWASAN Naryanto, Heru Sri
Jurnal Sciene dan Teknologi Vol 10, No 2 (2008): JURNAL SAINS DAN TEKNOLOGI INDONESIA
Publisher : Jurnal Sciene dan Teknologi

Show Abstract | Original Source | Check in Google Scholar

Abstract

The west coast of Lampung area is included of high potential of disasters, both earthquake and tsunami. The Sumatera active fault zone and subduction zone are located in the area and as a source of earthquake hazards. The big earthquakes had struck in the in 1933 and 1994, causing great damages and  manycasualties. Tectonic earthquake accompanied by tsunami causes sea water demolished main land kilometers away in the lowland topography of west coast of Lampung. The accuracy data of earthquake and tsunami disasters reduction are needed for disaster mitigation, land use management,regional planning and sustainable development in west coast of  Lampung. All aspects of disaster risk reduction are well considered in order to minimize possible vulnerabilities and disaster risks throughout the society, activity, and place.
EVALUASI PENATAAN KAWASAN AMAN AKIBAT BENCANA TSUNAMI ACEH 26 DESEMBER 2004 CONTOH KASUS DI PANTAI KOTA MEULABOH, KABUPATEN ACEH BARAT Naryanto, Heru Sri
Jurnal Sciene dan Teknologi Vol 11, No 1 (2009): JURNAL SAINS DAN TEKNOLOGI INDONESIA
Publisher : Jurnal Sciene dan Teknologi

Show Abstract | Original Source | Check in Google Scholar

Abstract

An exceptionally strong earthquake with magnitude 9 on the Richter scale struck Aceh on December 26, 2004 at 07.59 local time, followed by a very big tsunami. The earthquake epicenter was located about 149 km south of Meulaboh City in the Indian Ocean. The tsunami waves travelled at a speed of + 500 km/hour. Entire strips along west coast of Meulaboh City was wiped clean from surface of the earth, many people were reported dead or missing in Meulaboh. Houses, office andbusiness buildings, roads, recreation areas, utilities, and other infrastructure elements were devastated, damaged, or made useless from the coastal line until 2km to the land area. The coastal planning for sustainable development of tsunamiin the area is needed for reducing the damages and saving the people life.
POTENSI AIR TANAH DI DAERAH CIKARANG DAN SEKITARNYA, KABUPATEN BEKASI BERDASARKAN ANALISIS PENGUKURAN GEOLISTRIK Naryanto, Heru Sri
JURNAL AIR INDONESIA Vol 4, No 1 (2008): JURNAL AIR INDONESIA
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Original Source | Check in Google Scholar

Abstract

Groundwater is one of the most important for human activities. The effects of land use and population changes in Bekasi area cause the degradation of groundwater quantity and quality. The aquifers potential in Cikarang and its surrounding as a study area are studied using geoelectric method. Geoelectric analysis can be measured the geometry of subsurface aquifer (thickness, depth, distribution, and structural geology). The aquifers in the study area are included of Bekasi Groundwater Basin System. The aquifers contain confined aquifer and unconfined aquifer. The thickness of unconfined aquifers less than 30 m, as lenses and bottom depth less than 40 m below of land surface. The thickness of confined aquifers is variation with maximum 80 m and the bottom depth 20-160 m below of land surface. The degradation of groundwater in Cikarang and its surrounding needs better groundwater management for sustainable development.
EVALUASI PENATAAN KAWASAN AMAN AKIBAT BENCANA TSUNAMI ACEH 26 DESEMBER 2004 CONTOH KASUS DI PANTAI KOTA MEULABOH, KABUPATEN ACEH BARAT Naryanto, Heru Sri
Jurnal Sains dan Teknologi Indonesia Vol 11, No 1 (2009)
Publisher : Jurnal Sains dan Teknologi Indonesia

Show Abstract | Original Source | Check in Google Scholar

Abstract

An exceptionally strong earthquake with magnitude 9 on the Richter scale struck Aceh on December 26, 2004 at 07.59 local time, followed by a very big tsunami. The earthquake epicenter was located about 149 km south of Meulaboh City in the Indian Ocean. The tsunami waves travelled at a speed of + 500 km/hour. Entire strips along west coast of Meulaboh City was wiped clean from surface of the earth, many people were reported dead or missing in Meulaboh. Houses, office andbusiness buildings, roads, recreation areas, utilities, and other infrastructure elements were devastated, damaged, or made useless from the coastal line until 2km to the land area. The coastal planning for sustainable development of tsunamiin the area is needed for reducing the damages and saving the people life.
ANALISIS KEJADIAN BENCANA TANAH LONGSOR TANGGAL 12 DESEMBER 2014 DI DUSUN JEMBLUNG, DESA SAMPANG, KECAMATAN KARANGKOBAR, KABUPATEN BANJARNEGARA, PROVINSI JAWA TENGAH Naryanto, Heru Sri
Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana Vol 1, No 1 (2017)
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1607.162 KB)

Abstract

AbstrakKejadian bencana tanah longsor semakin sering terjadi di Indonesia, termasuk di Kabupaten Banjarnegara. Bencana tanah longsor kembali menimpa warga Dusun Jemblung, Desa Sampang, Kecamatan Karangkobar, Kabupaten Banjarnegara, Provinsi Jawa Tengah pada hari Jumat, 12 Desember 2014 jam 17.30 WIB. Tipologi tanah longsor yang terjadi adalah tipe rotasi, yang kemudian ke arah bawah berkembang menjadi aliran debris akibat material longsoran yang bercampur dengan massa air yang sangat jenuh. Faktor-faktor yang mempengaruhi terjadinya tanah longsor di Banjarnegara 12 Desember 2014 antara lain adalah: geomorfologi terbentuk oleh perbukitan di sedang sampai terjal, batuan penutup berupa soil berasal dari pelapukan batuan breksi vulkanik, terbentuknya rekahan batuan di bagian atas mahkota longsor, curah hujan yang sangat ekstrim, terbentuk mataair pada bagian atas dan tengah bukit, tataguna lahan yang sudah banyak berubah dan aktivitas manusia yang sudah menjarah daerah kritis. Banyak faktor-faktor yang mempengaruhi terjadinya tanah longsor, tetapi dari hasil analisis ada tiga faktor utama penyebab terjadinya tanah longsor yaitu: terjadinya hujan ekstrim (lebat) selama tiga hari berturut-turut sebelum terjadi longsor, topografi pembentuk tanah longsor sangat terjal, tanah (soil) hasil pelapukan batuan sangat tebal dan bersifat menyerap air sehingga mudah jenuh. Berkaitan dengan hal tersebut sangat dibutuhkan berbagai kegiatan pengurangan risiko bencana (PRB) untuk meminimalisasi jumlah korban baik jiwa maupun harta. Kata kunci: Tanah Longsor, Banjarnegara, Topografi Terjal, Soil Tebal, Curah Hujan Ekstrim, Pengurangan Risiko Bencana
ANALISIS PATAHAN BAWAH PERMUKAAN DARI PENGUKURAN GEOLISTRIK UNTUK ANTISIPASI BENCANA GEMPA DI KABUPATEN GROBOGAN Naryanto, Heru Sri
Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana Vol 2, No 2 (2018)
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Original Source | Check in Google Scholar | Full PDF (707.783 KB)

Abstract

ABSTRAKPembangunan yang sangat pesat di Kabupaten Grobogan harus seiring dengan keamanan dan keselamatan terhadap produk dari pembangunan tersebut. Kabupaten Grobogan termasuk salah satu kawasan yang rawan terhadap bahaya gempa. Bencana gempa berpotensi merusak segala infrastruktur yang sudah terbangun, termasuk keselamatan jiwa. Struktur patahan bisa menjadi penyebab pemicu terjadinya gempa, serta merupakan zona lemah yang mudah rapuh apabila terjadi gempa. Banyak sekali struktur patahan yang terdapat di Kabupaten Grobogan. Penelitian kondisi geologi bawah permukaan sangat penting untuk memberikan informasi yang detil segala sesuatu yang ada di bawah permukaan termasuk struktur patahannya. Salah satu metodologi analisis bawah permukaan adalah dengan pengukuran geolistrik. Pengukuran geolistrik dilakukan pada 5 lintasan pada 3 kecamatan di Kabupaten Grobogan, yaitu: Kecamatan Pulo Kulon, Kecamatan Kradenan dan Kecamatan Gabus. Pengukuran geolistrik dilakukan sebagian besar di atas endapan aluvial, dimana patahan tidak terekspose di permukaan. Dijumpai banyak patahan berdasarkan analisis data dari 5 lintasan geolistrik. Patahan yang banyak dijumpai adalah patahan turun (normal) dan sebagian patahan geser. Untuk keselamatan masyarakat maka perlu mitigasi bencana gempa pada kawasan yang dilalui patahan. Untuk penataan kawasan yang aman berkelanjutan, diperlukan konstruksi bangunan yang kuat apabila dibangun di atas kawasan patahan. Katakunci: Pengukuran geolistrik, bawah permukaan, patahan, gempa, mitigasi
KAJIAN PETA BAHAYA TANAH LONGSOR DI KABUPATEN BANGGAI LAUT, PROVINSI SULAWESI TENGAH (STUDY OF LANDSLIDE HAZARD MAP IN THE BANGGAI LAUT DISTRICT, CENTRAL SULAWESI PROVINCE) Naryanto, Heru Sri
Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana Vol 2, No 1 (2018)
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Original Source | Check in Google Scholar | Full PDF (838.193 KB)

Abstract

ABSTRACTBanggai Laut District which consists of islands has many threats to natural disaster, one of them is landslide hazard. The landslides hazard in Banggai Laut District is formed due to morphology which mostly in the form of wavy morphology up to the hills. The thematic map data used in landslide hazard map analysis is the official data held by the Banggai Laut District Government. The weighting and rating system is carried out on several parameters: geology (15%), slope (40%), land cover (25%) and rainfall (20%). Data from these parameters are overlaid with geographic information system (GIS) to obtain the classification of landslide hazard maps, ie: high landslide hazard zones, moderate landslide hazard zones and low landslide hazard zones. High landslide hazard zones are evenly spread over 4 large islands, namely Banggai Island, Bangkurung Island, Labobo Island and Bokan Kepulauan Islands. The potential for high landslide hazard will become bigger with added disturbance of human activities. To smooth the development process in integrated Banggai Laut District, landslide hazard maps and other hazard maps are very necessary. The limited availability of data and information on the disaster in Banggai Laut District, the creation of landslide hazard map is very important as one of the parts to complement the data. With the establishment of Regional Disaster Management Agency (BPBD) of Banggai Laut District, disaster risk reduction is expected to be implemented more focused, integrated, comprehensive and well coordinated with related institutions. Keywords: Landslides, Hazard Maps, Banggai Laut, Disaster Risk Reduction, Focused and Integrated Development.   ABSTRAKKabupaten Banggai Laut yang terdiri dari kepulauan mempunyai banyak ancaman terhadap bencana alam, salah satunya adalah bencana tanah longsor (gerakan tanah). Bahaya tanah longsor di Kabupaten Banggai Laut terbentuk akibat morfofologi yang sebagian besar berupa morfologi bergelombang sampai perbukitan. Data peta tematik yang digunakan dalam analisis peta bahaya tanah longsor adalah data resmi yang dimiliki oleh Pemerintah Kabupaten Banggai Laut. Sistem pembobotan dan penilaian dilakukan pada beberapa parameter yaitu: geologi (15%), lereng (40%), tutupan lahan (25%) dan curah hujan (20%). Data dari parameter-parameter tersebut dioverlay dengan sistem informasi geografi untuk mendapatkan klasifikasi peta bahaya tanah longsor, yaitu: zona bahaya tanah longsor tinggi, zona bahaya tanah longsor sedang dan zona bahaya tanah longsor rendah. Zona bahaya tanah longsor tinggi merata tersebar di 4 pulau besar, yaitu Pulau Banggai, Pulau Bangkurung, Pulau Labobo dan Bokan Kepulauan. Potensi bahaya longsor tinggi tersebut akan menjadi semakin besar dengan tambahan gangguan aktivitas manusia. Untuk kelancaran proses pembangunan secara terpadu di Kabupaten Banggai Laut, peta bahaya longsor dan peta-peta bahaya lainnya sangat diperlukan. Ketersediaan data dan informasi tentang kebencanaan yang masih terbatas di Kabupaten Banggai Laut, maka pembuatan peta kawasan rawan bahaya tanah longsor sangat penting sebagai salah satu bagian untuk melengkapi data tersebut. Dengan terbentuknya BPBD Kabupaten Banggai Laut, maka pengurangan risiko bencana diharapkan dapat dilaksanakan dengan lebih terarah, terpadu, menyeluruh serta terkoordinasi dengan baik dengan instansi terkait. Kata kunci: Tanah Longsor, Peta Bahaya, Banggai Laut, Pengurangan Risiko Bencana, Pembangunan Terarah dan Terpadu.
ANALISIS KONDISI BAWAH PERMUKAAN DAN RISIKO BENCANA TANAH LONGSOR UNTUK ARAHAN PENATAAN KAWASAN DI DESA TENGKLIK KECAMATAN TAWANGMANGU KABUPATEN KARANGANYAR JAWA TENGAH Naryanto, Heru Sri
Jurnal Sains dan Teknologi Indonesia Vol 13, No 2 (2011)
Publisher : Jurnal Sains dan Teknologi Indonesia

Show Abstract | Original Source | Check in Google Scholar

Abstract

Karanganyar District is a hilly area with steep slopes, rock constituent of young volcanic deposits of Lawu Volcano products, thick soil and relatively high rainfall, so it is potential for large landslides in this region. The landuse in the Karanganyar District including the Tengklik Village is generally dominated by rice fields, seasonal gardens and settlements. Plantation made up in areas with steep topography has great influence on erosion and landslides. Similarly, many settlements are built on a slope so that the area is very vulnerable to the threat of landslides. In the rainy season landslides are common. The potential hazard of landslidesoccurred in 14 sub districts in Karanganyar District. Large landslides have occurred in Karanganyar on December 26, 2007 which claimed the lives of 62 people, with the greatest victims were in the Ledoksari Village, Tawangmangu. The Tengklik Village has already experienced creep type landslides, which have destroyed settlements, roads, seasonalgardens and all existing infrastructure in the area. In order to do the proper handling and anticipation of a catastrophic landslide, a variety of technological applications landslides using geographic information system (GIS) was then carried out, to detect the configuration of 2D geoelectrical subsurface prone areas for landslide risk study and regional planning.
ANALISIS POTENSI AIR TANAH BERDASARKAN PENGUKURAN GEOLISTRIK 2D DI DAERAH KAPUAS, PROVINSI KALIMANTAN TENGAH Naryanto, Heru Sri; nurhidayat, nurhidayat
Jurnal Air Indonesia Vol 7, No 1 (2014): Jurnal Air Indonesia
Publisher : Center for Environmental Technology

Show Abstract | Original Source | Check in Google Scholar

Abstract

Groundwater is water that occurs naturally in the subsurface, and is contained in the aquifer. Groundwater is the water source of the most widely used by the public for purposes of clean water. To determine the condition of the aquifer configuration one of the methods that can be used is the 2D electrical resistivity. Exploration drilling is one effective way to determine directly the presence of groundwater, but to determine the location of the drilling necessary geophysical approach to describe subsurface conditions prior to drilling. 2D electrical resistivity method is a geophysical method that utilizes dynamic electrical properties of the media path. 2D electrical resistivity measurements have been carried out in Kapuas, Central Kalimantan using Wenner configuration, the distance between the electrodes 10 meters, penetration depth reaches 80 meters, and and measuring some 21 track. Water potential zones were identified based on having resistivity range 15-25 ohm.m, contained in the sandstone layer, which is covered in a layer of impermeable mudstone layers. Location that has a high potential for groundwater recommended drilling done on the track P-07 and P-13, with an estimated depth of the aquifer between 25 meters and 30 meters. The highest groundwater potential lies between the drilling data PH-23 and PH-24, with the resistivity at that point reaches 300 ohm.m. Keywords : Groundwater, aquifer, sandstone, 2D electrical resistivity, resistivity, Kapuas