Tsunami (bahasa Jepang: 津波; tsu = pelabuhan, nami = gelombang, secara harafiah berarti "ombak besar di pelabuhan") adalah perpindahan badan air yang disebakan oleh perubahan permukaan laut secara vertikal dengan tiba-tiba. Perubahan permukaan laut tersebut bisa disebabkan oleh gempa bumi yang berpusat di bawah laut, letusan gunung berapi bawah laut, longsor bawah laut, atau hantaman meteor di laut. Gelombang tsunami dapat merambat ke segala arah. (Wikipedia)
- Penyebab Timbulnya Bencana Gelombang Tsunami di Wilayah Selat Sunda dan Upaya Penanggulangan, klik di https://www.neliti.com/publications/195604/penyebab-timbulnya-bencana-gelombang-tsunami-di-wilayah-selat-sunda-dan-upaya-pe
- Peningkatan Ketahanan Ekosistin Kesisir Selat Sunda Kawasan Banten terhadap Ancaman Bahaya Tsunami Volkanik dan Tektonik, klik di http://jrisetgeotam.com/index.php/proceedings/article/view/565
Abstract
The well-documented 1883 eruption of Krakatau volcano (Indonesia) offers an opportunity to couple the eruption’s history with the tsunami record. The aim of this paper is not to re-analyse the scenario for the 1883 eruption but to demonstrate that the study of tsunami deposits provides information for reconstructing past eruptions. Indeed, though the characteristics of volcanogenic tsunami deposits are similar to those of other tsunami deposits, they may include juvenile material (e.g. fresh pumice) or be interbedded with distal pyroclastic deposits (ash fall, surges), due to their simultaneity with the eruption. ....
download di https://link.springer.com/article/10.1007%2Fs00445-014-0814-x
The well-documented 1883 eruption of Krakatau volcano (Indonesia) offers an opportunity to couple the eruption’s history with the tsunami record. The aim of this paper is not to re-analyse the scenario for the 1883 eruption but to demonstrate that the study of tsunami deposits provides information for reconstructing past eruptions. Indeed, though the characteristics of volcanogenic tsunami deposits are similar to those of other tsunami deposits, they may include juvenile material (e.g. fresh pumice) or be interbedded with distal pyroclastic deposits (ash fall, surges), due to their simultaneity with the eruption. ....
download di https://link.springer.com/article/10.1007%2Fs00445-014-0814-x
Abstract
Tsunamigenik adalah suatu kejadian di alam yang berpotensi menimbulkan tsunami. Kejadian tersebut berupa terganggunya air laut oleh kegiatan-kegiatan gunung api, gempa bumi, longsoran pantai dan bawah laut, dan sebab-sebab lainnya. Berdasarkan sejarah, di Selat Sunda telah berkali-kali terjadi bencana tsunami yang tercatat dalam katalog tsunami. Tsunami yang terjadi ini disebabkan oleh beberapa fenomena geologi, di antaranya erupsi gunung api bawah laut Krakatau yang terjadi tahun 416, 1883, dan 1928; gempa bumi pada tahun 1722, 1852, dan 1958; dan penyebab lainnya yang diduga kegagalan lahan berupa longsoran baik di kawasan pantai maupun di dasar laut pada tahun 1851, 1883, dan 1889. ........
lebih lengkap di https://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/64
Tsunamigenik adalah suatu kejadian di alam yang berpotensi menimbulkan tsunami. Kejadian tersebut berupa terganggunya air laut oleh kegiatan-kegiatan gunung api, gempa bumi, longsoran pantai dan bawah laut, dan sebab-sebab lainnya. Berdasarkan sejarah, di Selat Sunda telah berkali-kali terjadi bencana tsunami yang tercatat dalam katalog tsunami. Tsunami yang terjadi ini disebabkan oleh beberapa fenomena geologi, di antaranya erupsi gunung api bawah laut Krakatau yang terjadi tahun 416, 1883, dan 1928; gempa bumi pada tahun 1722, 1852, dan 1958; dan penyebab lainnya yang diduga kegagalan lahan berupa longsoran baik di kawasan pantai maupun di dasar laut pada tahun 1851, 1883, dan 1889. ........
lebih lengkap di https://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/64
Koulali, dkk.
Highlights
• Convergence between Australia and Sundaland is partitioned on two main fault systems.
• Convergence on the Baribis–Kendeng fault system stretches across northern Java.
• Observed crustal deformation in Java correlate with historical earthquakes patterns.
• Post-seismic deformation of west Java following the 2006 Java earthquake is ongoing.
lebih lengkap https://www.sciencedirect.com/science/article/pii/S0012821X16306045
Highlights
• Convergence between Australia and Sundaland is partitioned on two main fault systems.
• Convergence on the Baribis–Kendeng fault system stretches across northern Java.
• Observed crustal deformation in Java correlate with historical earthquakes patterns.
• Post-seismic deformation of west Java following the 2006 Java earthquake is ongoing.
lebih lengkap https://www.sciencedirect.com/science/article/pii/S0012821X16306045
Abstract
Southeast Asia has had both volcanic tsunamis and possesses some of the most densely populated, economically important and rapidly developing coastlines in the world. This contribution provides a review of volcanic tsunami hazard in Southeast Asia. Source mechanisms of tsunami related to eruptive and gravitational processes are presented, together with a history of past events in the region. .....
Lebih lanjut, unduh artikel di https://link.springer.com/article/10.1007%2Fs11069-013-0822-8
Southeast Asia has had both volcanic tsunamis and possesses some of the most densely populated, economically important and rapidly developing coastlines in the world. This contribution provides a review of volcanic tsunami hazard in Southeast Asia. Source mechanisms of tsunami related to eruptive and gravitational processes are presented, together with a history of past events in the region. .....
Lebih lanjut, unduh artikel di https://link.springer.com/article/10.1007%2Fs11069-013-0822-8
Indonesia is located along the most prominent active continental margin in the Indian Ocean, the so-called Sunda Arc and, therefore, is one of the most threatened regions of the world in terms of natural hazards such as earthquakes, volcanoes, and tsunamis. On 26 December 2004 the third largest earthquake ever instrumentally recorded (magnitude 9.3, Stein and Okal, 2005) occurred off-shore northern Sumatra and triggered a mega-tsunami affecting the whole Indian Ocean. Almost a quarter of a million people were killed, as the region was not prepared either in terms of early-warning or in terms of disaster response.
Unduh di https://www.nat-hazards-earth-syst-sci.net/10/641/2010/
Unduh di https://www.nat-hazards-earth-syst-sci.net/10/641/2010/
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Abstract
Numerical modelling of a rapid, partial destabilization of Anak Krakatau Volcano (Indonesia) was performed in order to investigate the tsunami triggered by this event. Anak Krakatau, which is largely built on the steep NE wall of the 1883 Krakatau eruption caldera, is active on its SW side (towards the 1883 caldera), which makes the edifice quite unstable. A hypothetical 0.280 km3 flank collapse directed southwestwards would trigger an initial wave 43 m in height that would reach the islands of Sertung, Panjang and Rakata in less than 1 min, with amplitudes from 15 to 30 m. These waves would be potentially dangerous for the many small tourist boats circulating in, and around, the Krakatau Archipelago. ....
download di sini http://sp.lyellcollection.org/content/361/1/79
A suite of tsunami spaced evenly along the subduction zone to the south of Indonesia (the Sunda Arc) were numerically modelled in order to make a preliminary estimate of the level of threat faced by Western Australia from tsunami generated along the Arc. Offshore wave heights from these tsunami were predicted to be significantly higher along the northern part of the west Australian coast than for the rest of the coast south of the town of Exmouth.
Download https://link.springer.com/article/10.1007%2Fs11069-007-9116-3
Download https://link.springer.com/article/10.1007%2Fs11069-007-9116-3
Our analysis of new bathymetric data reveals six submarine landslides at the eastern Sunda margin between central Java and Sumba Island, Indonesia. Their volumes range between 1 km³ in the Java fore-arc basin up to 20 km³ at the trench off Sumba and Sumbawa. We estimate the potential hazard of each event by modeling the corresponding tsunami and its run-up on nearby coasts. Four slides are situated remarkably close to the epicenter of the 1977 tsunamigenic Sumba M w = 8.3 earthquake. However, comparison of documented tsunami run-up heights and arrival times with our modeling results neither allows us to confirm nor can we falsify the hypothesis that the earthquake triggered these submarine landslides.
download di https://link.springer.com/article/10.1007%2Fs11069-009-9487-8
download di https://link.springer.com/article/10.1007%2Fs11069-009-9487-8
The Indonesian archipelago is known for the
occurrence of catastrophic earthquake-generated tsunamis along the Sunda Arc. The tsunami hazard associated with submarine landslides however has not been fully addressed.
In this paper, we compile the known tsunamigenic events where landslide involvement is certain and summarize the properties of published landslides that were identified with geophysical methods. We depict novel mass movements, found in newly available bathymetry, and determine their key
parameters. Using numerical modeling, we compute possible tsunami scenarios. Furthermore, we propose a way of identifying landslide tsunamis using an array of few buoys with bottom pressure units.
download di https://www.nat-hazards-earth-syst-sci.net/10/589/2010/
occurrence of catastrophic earthquake-generated tsunamis along the Sunda Arc. The tsunami hazard associated with submarine landslides however has not been fully addressed.
In this paper, we compile the known tsunamigenic events where landslide involvement is certain and summarize the properties of published landslides that were identified with geophysical methods. We depict novel mass movements, found in newly available bathymetry, and determine their key
parameters. Using numerical modeling, we compute possible tsunami scenarios. Furthermore, we propose a way of identifying landslide tsunamis using an array of few buoys with bottom pressure units.
download di https://www.nat-hazards-earth-syst-sci.net/10/589/2010/
Artikel ini dicari dengan kata kunci "tsunami" dan "aceh"
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