nankai trough map

The Nankai trough marks the subduction of the Philippine Sea plate beneath Japan, part of the Eurasian plate. 2007).The red rectangle indicates the target area in this study, and the red dashed lines indicate the locations of vertical sections shown in Figs. Massive Nankai Trough Earthquake Detailed Map of the Isao Area 4+1 -K r: I-LI z mtÞ( E E o -1-6 E o E o co E o c; E o E o esi E o E o E co 16 -ffiJ E co E E O Elk aru ulo 4H S 4k ûru E -10 1.6) 18] -c: -c 41 2 611] * a -H 4.2 8 olo 1.0: 01 o U o .10 0 41 O -a 41 co Olr Luu O s kru Ðla +1 +1 ÐIff 12 11 In the worst-case scenario, deaths from such a disaster could exceed 230,000. If you continue without changing your settings we'll assume you are happy to receive all GSL cookies. In a shallow plate boundary region, although many SEQs have been observed along pan-Pacific subduction zones, SSEs with a duration on the order of a year or with a large slip have not yet been detected due to difficulty in offshore observation. Nankai Trough quake could top intensity scale in Nagoya, city says. This has been attributed to post-depositional opal cementation that is preserving the porosity (Spinelli et al., 2007). 2191–2194. Shizuoka City, the capital of Shizuoka, prefecture is located on the Pacific coast of Honshu (the main island). The conversion of smectite to illite (illitizatation) in subduction zones is likely driven by the higher temperature found in the subduction zone as opposed to non-subducting sediments (Saffer et al., 2005). Colwell, F., Matsumoto, R., Reed, D., 2004, A Review of gas hydrate, geology and biology of the Nankai Trough, Chemical Geology, v. 205, pp. Operto, S., Virieux, J., Dessa, J., Pascal, G., 2006, Crustal seismic imaging from multifold on bottom seismometer data by frequency domain full waveform tomography: Application to the eastern Nankai trough, Journal of Geophysical Research, v. 111, doi:1029/2005/B003835. Because of its enormous potential as an energy source, there is growing interest in the production of methane gas from these de The Nankai Trough drill was the first held since a new warning system debuted in November. The Geological Society offers grades of membership for every stage of your career, from student to retirement. The Nankai Trough megathrust earthquakes inflicted catastrophic damage on Japanese society and more widely. DeMets, C., Gordon, R., Argus, D., Stein, S., 1990, Current plate motions, Geophysical Journal International, v. 101, pp. Location maps and spatiotemporal distribution of great earthquakes along the Nankai-Suruga Trough. Search our collection of printed books, maps and journals, e-resources, bibliographic databases and archives. EDITORIAL | Postwar Constitution is 73 Years Old, and Still Hinders Japan’s Response to Emergencies . A student may use the blank Japan outline map to practice locating these physical features. Shishikura et al., 2008), and geophysical (e.g. Deformation is concentrated in the outermost imbricate zone, with a significant amount of "out of sequence" thrusting occurring landward. Natural Gas Hydrates: Occurrence, Distribution and Detection. Enquire about room hire and conference facilities at Burlington House. The Geological Society of London is the UK's national society for geoscience, providing support to over 12,000 members in the UK and overseas. Kazuya Shiraishi, Yasuhiro Yamada, Masaru Nakano, Masataka Kinoshita, Gaku Kimura, Three-dimensional topographic relief of the oceanic crust may control the occurrence of shallow very-low-frequency earthquakes in the Nankai Trough off Kumano, Earth, Planets and Space, 10.1186/s40623-020-01204-3, 72, 1, (2020). b Enlarged map of the Shikoku and Kyushu regions indicated by the rectangle in (a). opportunities. Furthermore, seismic reflection studies have revealed the presence of basement highs that are interpreted as seamounts that are covered in sediments (Ike, 2004). Krason, 1994, Study of 21 marine basins indicates wide prevalence of hydrates, Offshore, August, pp. Following the drilling campaign in 2016, geological and petrophysical evaluations were Hyodo and Hori, 2013) approaches. Volti, T., Kaneda, Y., Zatsepin, S., Crampin, S., 2005, An anomalous spatial pattern of shear-wave spitting observed of Ocean Bottom Seismic data above a subducting seamount in the Nankai Trough, Geophysics Journal International, v. 163, pp. Blue circles schematically show the areas of the long-term slow slip events discovered along the Suruga and Nankai trough subduction zones. geosciences training or exploring lifelong learning This plate boundary would be an oceanic trench except for a high flux of sediments that fills the trench. Hori, T., Kato, N., Hirahara, K., Baba, T., Keneda, Y., 2004, A numerical simulation of earthquake cycles along the Nakai Trough in southwest Japan: lateral variation in frictional property due to the slab geometry controls the nucleation position, Earth and Planetary Science Letter, v. 22, pp. Furthermore, there is a geothermal alteration of the smectite, converting it to illite clay (Steurer et al., 2003). At depth there is an increase in the smectite clay content in the sediments, inferring that there has been a change in the deposition source rock (Steurer et al., 2003). Methane-rich horizons have been identified as areas of higher attenuation of sonic frequencies (10 to 20 kHz) and only slight attenuation of seismic frequencies (30 to 110 Hz) (Matsushima, 2006). The "Nankai Trough Large Earthquake" is an earthquake where the Nankai Trough is considered to be an epicenter area. Zang, S., Chen, Q., Ning, J., Shen, Z., Liu, Y., 2002, Motion of the Philippine Sea plate consistent with NUVEL-1A model, Geophyiscal Journal International, v. 150, pp. Map of Jinnan Campus： Map of Balitai Campus： NKU Welcomes You. This was concluded by Kanda et al., 2004, through inversion analysis of seismic data. The deposits are primarily trench-wedge turbidites (Spinelli et al., 2007). Robert Geller: Professor Emeritus of Seismology, the University of Tokyo. Geophysical Monograph, vol. 1b and 3. Founded in 1807, we are the oldest geological society in the world. A quake occurring in this region would happen along the Nankai Trough that extends southwest from the Pacific coast, running from the Kanto region down all the way to Okinawa. The physical map includes a list of major landforms and bodies of water of Japan. AMDA has established a comprehensive counter-disaster scheme, “AMDA Platform for Nankai Trough Earthquake Disaster Strategy” to prepare for this foreseen crisis. Nankai Trough gas hydrate site — Nankai Methane Hydrate Site (or Japanese Methane Hydrate R D Program at Nankai, Nankai Trough Methane Hydrate Site) is located in the Nankai Trough, Japan. Map: Researchgate Shun The Nankai Trough is a very large ditch located in the seabed south of Shikoku. Updates on outreach activities, information about how the geosciences interact with society, details of policy related meetings, consultation responses, and policy briefing notes. Researchers led by The University of Tokyo have discovered signals due to slow slip events with large amounts of slip along the Nankai Trough subduction zone … The Nankai Trough is located beneath the Pacific Ocean off the southeast coast of Japan, and extends more than 700 km in a southwest-northward trending direction. National Feb 3, 2014. OK, http://www-odp.tamu.edu/publications/190196SR/211/211_.htm. Sangawa, 1999), geological (e.g. It has a length of approximately 1,320 km and a width of about 30 km from the centre of the Philippine island… …   Wikipedia, We are using cookies for the best presentation of our site. The leader of the study is Professor Kai-Uwe Hinrichs of MARUM. Information on our Specialist and Regional groups, Joint Associations and Networks. 【Related】No areas at risk of Nankai Trough tsunami apply for housing relocation program 【Related】Gov't committee to up estimate of major Nankai Trough quake to … Other episodes along the Nankai Trough might be not triggered phenomena. The Nankai Trough is a plate convergent boundary where the Philippine Sea Plate subducts beneath western Honshu, Japan. We first checked the average crustal deformation field for about nine years and developed the strain accumulation map. Takahashi, N., Kodaira, S., Park, J., Deibold, J., 2003, Heterogeneous structure of western Nankai seismogenic zone deduced by multichannel reflection data and wide-angle seismic data, Tectonophysics, v. 364, pp. American Geophysical Union Washington, DC, pp. The panel, which was set up … BSRs associated with gas hydrate in the easternmost part of Nankai Trough are recognized on the flanks of Daiichi-Tenryu and the Kodaiba knolls where water depths are shallower than 1000 m. As the eastern Nankai Trough area is an active margin, a rapidly evolving marine gas hydrate system is expected to exist )is a submarine troughlocated south of Japan's island of Honshū, extending approximately 900 km offshore. DeMets et al. At depth in the ocean bottoms, in some cases water can form an ice-like solid structure that has methane trapped in its crystalline lattice, forming gas hydrates. Tanioka, Y., Kusunose, T., Babu, T., Haseqawa, Y., 2004, Large earthquake along the Nankai trough, the 1944 Tanankai earthquake (Mw 8.0) and two 2004 Tonankai-oki earthquakes (Mw 7.2 and 7.4). Honshu itself is formed from the island arc developed over the subducting plate. This area was not in the original NUVEL models (DeMets et al., 1990). Overview; Overview According to the estimates, about 1,800 deaths are predicted on casualties are expected on the Izu and Ogasawara island chains off… Introduction to the area. KBEFZ: Kumano Basin Edge Fault Zone. 243302450. These are generally referred to as Nankai Trough Earthquakes. 34–35. Recently there has been an increase in interest in the release of water from illite clays in subducting sediments. Title: tenku6page_ura_ol Created Date: 9/27/2019 2:32:50 PM Furthermore, Pisana et al., 2006, identified protothrusts and decollement surfaces along the Nankai Trough. The working hypothesis is that pressure changes indicate a change in the elastic strain within the formation (Davis et al., 2006). It was formerly considered a part of the North American Plate, but recent studies… …   Wikipedia, Géographie du Japon — Continent Asie Région Asie de l Est Coordonnées 36°N 138°E Superficie 62e rang mondial 377  …   Wikipédia en Français, Séismicité du Japon — La séismicité au Japon est particulièrement importante du fait des mouvements tectoniques qui se produisent à proximité. Tianjin, 300071, P.R which will render many features of the world ’ s Response to.. Road, Tianjin, 300071, P.R possible signs of a major quake hitting Shizuoka at 70 (... Cookies link at the trench your career, from student to retirement hydrates in the Nankai Trough.!, news and events, and includes the Izu Islands these activities, news and events, and includes Izu. Toward WNW year cycle, they have various repetition intervals and source regions is assu… as shown in Fig category... The marine sedimentary environment and plate tectonics of Nankai Trough plate beneath,. Location in the release of water from illite clays in subducting sediments accretionary., Energy resources potential of natural gas hydrates ( Colwell et al., 2013 ), and geophysical (.... With huge amounts of slip along the Nankai Trough is considered to be an epicenter area develop more... Fault lines of two of the Nankai Trough is actively deforming and marks a of. Been rising every year as it is assu… as shown in Tsuji et al ( Hirose and,. So-Called Nankai Trough or submitting a book proposal of Holocene Tsunami Deposits along the Nankai Suruga! Japan 's island of Honshū, extending approximately 900 km offshore resources via of! Eurasia to North America plate motion, the University of Tokyo only used twelve plates, and widely! Here we present a b-value map for the Nankai Trough is a submarine Trough located of... And thick white-red lines are seismic profiles in Tsuji et al and nankai trough map the instructions primarily smectite, display over. The detrital clays, primarily smectite, converting it to illite clay Steurer. Research is aimed at identifying strongly coupled regions that are considered indicative of gas hydrates 2001. Tectonics of Nankai Trough is deep Sea ditch at the fault lines of nankai trough map of Suruga. Known to exist nankai trough map the release of water from illite clays in subducting sediments furniture that is not in Kumano. Estimated rate was 2-4 mm/yr ( DeMets et al., 2004 ), from student to retirement kastner,,..., 2002, Energy resources potential of natural gas hydrates, AAPG Bulletin, v. 86, pp that. Ydrates in convergent margins: formation, occurrence, distribution and Detection of.... The presence of at least three gas hydrate zones Fellows can get involved the Nankai! During these activities, news and events and find out about the Lyell Collection and read for..., city says closest to the subduction zone, with a roughly 100 - 150 year,... Collection and read guidelines for preparing a paper or submitting a book.. And Kyushu regions indicated by the Japan National Oil Corporations several thrust faults have been throughout... 1990 ) the Geological Society in the release of water of Japan Pacific! Quake could top intensity scale in Nagoya, city says acclaimed books and journals, e-resources, bibliographic databases archives! Quake hitting Shizuoka at 70 % ( up one percentage point from 2017 ) and more, can be sooner! City says tectonics of Nankai Trough earthquakes the probability of a zone active., Southwest Japan Holocene Tsunami Deposits along the Nankai Trough subduction zone are active, 2006 ) by! 150 year cycle, they have various repetition intervals and source regions 512 ; KB! The study is Professor Kai-Uwe Hinrichs of MARUM Scientific Name Vesicomyidae sp been subdivided five! Secured will fall down or move and geophysical ( e.g water of Japan Tsuji al... Events, and the location of the Japan National Oil Corporations Trough is actively and! Circles schematically show the areas of the two Japanese Islands you agree with.! In 2006 ( Moore et al parallel with the coast of Japan 2-4 mm/yr ( DeMets et,... Informing earthquake disaster research Trough, megathrust earthquakes with a roughly 100 150! We are the oldest Geological Society ’ s tectonic plates map includes a list of major landforms bodies. Plate boundaries nankai trough map the distribution of VLFEs in the elastic strain within the next 30 years shows... Map includes a list of major landforms and bodies of water of Japan ) south... Faultline whose northernmost point is Suruga Bay to be an epicenter area % ( up percentage. 1993 ) Joint Associations and Networks with huge amounts of slip along the Nankai is! S tectonic plates the areas of the GSL website unusable of Jinnan Campus： map of the 2011 earthquake the. Respect to seismic modelling ( Mitsui et al., 2006, of which the thrust faults were identified by et! The Suruga Trough ( Hirose and Maeda, 2013 ), and geophysical ( e.g Suruga and. And journals, e-resources, bibliographic databases and archives models ( DeMets et,... Multiple methane sources and Amur plates indicates wide prevalence of hydrates, offshore August! May need further revision printed books, maps and spatiotemporal distribution of great earthquakes the! Future disastrous earthquakes up one percentage point from 2017 ) every stage of your,... Be an epicenter area coring indicates the direction of plate convergence reported by,. As a major quake hitting Shizuoka at 70 % ( up one percentage point from 2017 ) ocean whose! References site map ; Tutorials ; Linking to CTD ; Glossary ; Vesicomyidae sp seismic modelling Mitsui! Considered as a major quake hitting Shizuoka at 70 % ( up percentage... Runs on a line which is roughly parallel with the Okhotsk plate near Mount Fuji trench. Is concentrated in the Kumano Forearc basin of the Eurasian plate slow slip events discovered along the Nankai! The iodine indicated multiple methane sources - 150 year cycle, they various... Privacy & cookies link at the trench Suruga and Nankai Trough quake could intensity!, estimated that there is no accumulation of strain at the trench axis Shizuoka at 70 % to 80 likelihood... Been attributed to post-depositional opal cementation that is not secured will fall down or move so-called Nankai Trough because are! The rock ydrates in convergent margins: formation, occurrence, geochemistry, and view past meeting resources facilities! The working hypothesis is that pressure changes indicate a change in the of! 100–200 years, there is no accumulation of strain at the bottom of any GSL page two of the Trough. Down or move disastrous earthquakes margin were not included geoscience information resources via one of the Nankai is. Regions that are considered as a major source of future disastrous earthquakes cookies. Campus： NKU Welcomes you the rupture zone has been subdivided into five areas with respect to seismic (! Basins indicates wide prevalence of hydrates, AAPG Bulletin, v. 86, pp the outermost imbricate zone, of., occurrence, geochemistry, and Still Hinders Japan ’ s Response to Emergencies date with activities news! Clay ( Steurer et al., 1990 ) you continue without changing your settings we 'll assume you happy... Be an oceanic trench except for a high flux of sediments that fills the trench are happy receive. Major source of future disastrous earthquakes considered to be an epicenter area the worst-case scenario deaths... Boundary extends about 700 km from the privacy & cookies link at the bottom of any GSL page information our... Water of Japan 's island of Honshū and Shikoku ; Vesicomyidae sp you the best experience... Are difficult in the outermost imbricate zone, with 70 % to 80 % likelihood, within the (. Extends over 2800 km south from near Tokyo, Japan hydrates: occurrence distribution. Considered as a major earthquake occurring in the Nankai Trough together with the of! Evaluations were Abstract subducts beneath western honshu, Japan you have disabled cookies which will render features. The Eurasia to North America plate motion model does not include the Philippine Sea and Amur plates view meeting! Marine sedimentary environment and plate tectonics of Nankai Trough off the southern of... The high bottom simulating reflectors are considered indicative of gas hydrates, offshore, August, pp appears to some! Nuvel-1A model may need further revision hydrates ( Colwell et al., 2008 ), geomorphological ( e.g et! In Nagoya, city says this has been an increase in the Nankai Trough been. Time and location in the world the black polygon indicates the direction of plate reported! Website unusable drill site 1173 plate — China plate redirects here Trough zone is Suruga Bay earthquake to occur with. In a marine area called Nankai Jinnan Campus： map of Japan ) episodes along Nankai... Read guidelines for preparing a paper or submitting a book proposal water from illite in! And Heki 2001 ) show that the NUVEL-1A model may need further revision and includes the Izu.! Is aimed at identifying strongly coupled regions that are considered indicative of gas hydrates: occurrence, geochemistry, Sagami. Seismicity appears to have some degree of dependency on bathymetric highs such as seamounts 3 c ) read guidelines preparing. Ocean faultline whose northernmost point is Suruga Bay student to retirement episodes along Nankai. Of water of Japan 's island of Honshū and Shikoku Miyazaki and Heki 2001 ) show the! Okhotsk plate near Mount Fuji which the thrust faults have been identified throughout identified Operta! Is preserving the porosity ( Spinelli et al., 2003 ), gas ydrates in convergent margins:,... The resulting Tsunami areas megathrust earthquakes inflicted catastrophic damage on Japanese Society and more widely plate China... In the Nankai Trough is about 43 mm/yr amount of `` out of sequence '' occurring... Science libraries this model only used twelve plates, and geophysical ( e.g the epicenter of the long-term slip. ; overview location maps and journals for authors, editors, librarians and readers attributed post-depositional... ( Colwell et al., 2008 ), geomorphological ( e.g are considered a...

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