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Tanjungsari is one of the districts in the Gunungsewu Geopark area, Gunungkidul Regency. Since Gunungsewu was declared as a Global Geopark Network area by Unesco, the tourism sector in this area has grown rapidly. Tanjungsari District does not want to be left behind in developing the tourism sector. Therefore it is necessary to trigger the development of tourism. In this district, there are several caves that have the potential to be developed, including Cave Bentar, Cave Cabe, Cave Tritis, Cave Grengseng, and Cave Pakubon, which have their own uniqueness and appeal in terms of morphology, endokarst, and legends. The development of these potential places is expected to be able to improve the economic sector and the welfare of the surrounding community. In order for the caves in Tanjungsari District to be able to compete, the concept of development must be different and not yet developed in other places, namely cave geo-ecotourism. In connection with the above-mentioned matters, research, studies, and feasibility studies are conducted on the potential development of cave geo-ecotourism. The activities carried out include mapping the distribution of geomorphology, geological structures, subsurface conditions, underground water availability using the ERT geoelectric method, and cave tracking. The results of this study are a cave map and an inventory of the potential of the cave.

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ogyakarta adalah salah satu wilayah di Indonesia yang memiliki risiko tinggi potensi gempa bumi khususnya gempa bumi tektonik. Catatan sejarah kejadian gempa bumi di Yogyakarta sering terjadi dengan skala 5,9 bahkan lebih dari 7,0 SR, diantaranya gempa bumi Yogyakarta-Jawa Tengah 2006 mengakibatkan sekitar 5.716 korban meninggal dengan kerugian 3.134 juta, terdapat 30 pasar tradisional yang rusak berat akibat gempa di Yogyakarta dan Klaten, salah satunya pasar Beringharjo. Pasar Beringharjo dikenal sebagai destinasi wisata utama di kawasan Malioboro Yogyakarta yang tidak lepas dari ancaman bencana gempa bumi serta dampak sekundernya yaitu kebakaran, sehingga diperlukan upaya penanggulangan bencana melalui upaya kesiapsiagaan dari pengguna pasar agar kerugian dapat diminimalisir. Tujuan penelitian untuk mengetahui kesiapsiagaan pengguna pasar terhadap ancaman bencana gempa bumi dan kebakaran yang digambarkan melalui pengetahuan, sikap, sistem peringatan dini, rencana tanggap darurat, dan mobilisasi sumber daya serta menilai dan mendiskripsikan sarana-prasarana yang menunjang keselamatan pengguna pasar. Penelitian ini menggunakan alat ukur kuesioner diadopsi dari LIPI-UNESCO/ISDR tahun 2006, lembar obsevasi dan lembar pertanyaan merujuk dari Peraturan Pd – T – 11 – 2005 – C, Kepmen Pu No 11/Ktsp/2000 dan Permen Pu No 29/Prt/2006. Hasil studi menunjukan kesiapsiagaan pengguna pasar berada pada kategori siap sebesar 54%, sangat siap sebesar 22%, hampir siap sebesar 17 %, kurang siap sebesar 6 %, dan tidak siap sebesar 1 %.  Nilai sarana-prasarana masuk dalam keandalan cukup dengan skor 80. Kesiapsiagaaan pengguna pasar masuk dalam kategori siap dan didukung oleh kecukupan sarana – prasarana yang menunjang keselamatan pengguna pasar.       Kata kunci : Kesiapsiagaan, Gempa bumi, Kebakaran, Pengguna Pasar Beringharjo

After the Yogya earthquake occurred on May 27, 2006, the opinions of experts split into two groups regarding location of responsible fault to earthquake shacking; (1), First group argues that Opak Fault displacement caused the earthquake. Where fault line is commonly known runs along Opak River, striking from Parangtritis Beach to Prambanan. (2) Second group of experts stated at deferent opinion, that another fault displacement triggered the earthquake shock. Where is located  at the East side of the Opak River about 10 Km. On the other-hand, this paper proposes an idea to unravel Opak Fault position by understanding, that main active fault movement underlying Bantul region has  been influencing continuum mechanical process, onto  Merapi Sediments surface since the early periods of  continuing Merapi materials sedimentation. It should has been reflected to the surface landform at above the fault strand. Further, indicates to morphotectonic feature as an en echelon slope shifted alignment. Thus, it can be the way to assist in defining attribute of main fault (PDZ) areas by using its en echelon indicator of shifting slope alignment. This paper also presents the results of determining Opak fault line location by using Digital Elevation Model (DEM-NAS) to generate custom shading in approaching landform features. With a further doing specific landscapes observations over the entire of Young Merapi deposits. There are other challenges to alternate identification of buried basin faults fill, by doing carefully identifications in morphotectonic aspects over the entire South Slope Merapi flank. It traces from Kepurun village at about elevation 400 m towards Parangtritis at 25 m of elevation. Independent field morphotectonic data sets of such scarp, terraces, water springs alignment and active cracks are encountered in the vicinity of Merapi sediments slope shifted, particularly in Tirtomartani Jetis village Kalasan. Identification of such structures obtained from morphotectonic analysis results are regarded as reliable indicator of faults, which is efficiently can be found in field.   Key word: Opak Fault, Morphotectonic, Slope Shifted, Delineation.