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The most recent events were the 1944 Tonankai (M 7.9) and the 1946 Nankai (M 8.0) earthquakes, which occurred on the east and west sides of the Nankai Trough, respectively. [9] An anticipated offshore mega-quake in the Nankai Trough within 30 years would generate tsunami at … Our 3D CMT catalog of offshore earthquakes and published slow earthquake catalogs (e.g., Kano et al., 2018) along the Nankai Trough depicted spatial distributions of slip behaviors on the plate boundary. Keyword: Tokai earthquake, Nankai Trough, Paleoseismology, seismo ‐ ... to determine the long‐term earthquake history of the Enshunada Sea area on the eastern part of the Nankai Trough from January 5–8, 2020. Keywords: core-to-core collaborative research, disaster mitigation, hazard estimation, risk evaluation, Nankai Trough earthquake. The objective of the General Research Group for the Nankai Trough Great Earthquake is to obtain a cross-sectional view of research on the Nankai Trough Great Earthquake, conducted by the various working groups of the Earthquake and Volcano Hazards Observation and Research Program, and to thereby promote the Program’s research in a comprehensive manner. Four phases and seven key tasks “Life-saving” phase Task 1 Disseminate timely information, and fully support evacuation from mega tsunami’s landfall in short timeframe. Data assimilation‐based early forecasting of long‐period ground motions for large earthquakes along the Nankai Trough. The Nankai Trough and Cascadia are very similar subduction zones in that they have large accretionary prisms and produce large earthquakes and tsunami. The Japanese government estimates that a major earthquake on the Nankai Trough would cause 169.5 trillion yen in direct damage and 50.8 trillion yen in economic losses for the following year. It targeted 108 municipal education boards -- 72 cities in 13 prefectures in the central government-designated areas under increased measures against the Nankai Trough earthquake … January 25, 2020 at 17:00 JST. Overview of Nankai Trough Mega Earthquake Operation Plan. Details of the Nankai Trough Mega Earthquake Operation Plan. To be ready for a national crisis should the Nankai Trough Mega Earthquake occur, we are making every effort to promote various operations. Slow-motion interplate slip detected in the Nankai Trough near Japan Date: January 15, 2020 Source: Institute of Industrial Science, The University of … Prehosp Disaster Med. 2020;35(2):160–164. The AD 1498 submarine … Nankai Trough Earthquake Evaluation Study Group "No particular changes observed" October 7, 19:10. In southwest Japan, large earthquakes around M 8 have repeatedly occurred in the Nankai Trough (hereafter referred to as Nankai Trough earthquakes) at intervals of ~100–200 years (Ando, 1975). Introduction The Nankai Trough, marking the boundary between the Eurasian Plate and the Philippine Sea Plate, is forecasted to create a catastrophic earthquake and tsunami with 70%-80% probability within 30years. In addition, we calculated the tsunami propagation that would be caused by the Nankai Trough earthquake, taking into account the largest class of earthquakes excluded by ERC (see also Hirata et al., this meeting). Slow-motion interplate slip detected in the Nankai Trough near Japan Jan 15, 2020 Earthquakes in slow motion: Studying 'slow-slip' events could shed light on destructive temblors According … Above 45°C, concentrations of vegetative cells drop two orders of magnitude and endospores become more than 6000 times more abundant than vegetative cells. More earthquake news on Strange Sounds and Steve Quayle. AbstractDespite recent observations of slow earthquakes along the Nankai subduction zone, none have been reported in the central Nankai Trough between the Kii Channel and Cape Shionomisaki. We investigated microbial life in up to 1.2-kilometer-deep and up to 120°C hot sediments in the Nankai Trough subduction zone. Q: Yasir Javed, New Zealand If we can get data on the patterns of small tremors before big devastating earthquake from the past, why can't we use such patterns to predict the future devastating earthquake by such tremor patterns currently? Abstract. Introduction: The Nankai Trough, which marks the boundary between the Eurasian and Philippine Sea plates, is forecasted to create a catastrophic earthquake and tsunami within 30 years. Examination of level 1.5 earthquake and tsunami in eastern edge of Nankai Trough, Japan Download Article: Download (PDF 796.5 kb) Author: Kitamura, Akihisa. A study by the Japan Society of Civil Engineers in 2018 estimated that the long-term damage from the earthquake could result in 1,240 trillion yen in economic losses over a 20-year period. Some questions remain about the recurrence pattern of Nankai Trough earthquakes. In 2012, the government released its estimates on the highest tsunami in case of a Nankai Trough earthquake. The research program titled “Earthquake and Volcano Hazards Observation and Research Program” was started in fiscal year (FY) 2014 as a new five-year project authorized and funded by the Council for Science and Technology of … government's Earthquake Research Committee (ERC) in January 2020. Share 0; Tweet list; Print; The Asahi Shimbun. 2020-10-07T10:17:51.480Z [NHK] The regular study group, which evaluates the possibility of a huge earthquake in the Nankai Trough, summarized the view that "no particular changes have been observed." He is working on a Japan Society for the Promotion of Science-funded project entitled 'Urgency Evaluation of the Nankai Great Earthquake and Tsunami by Scientific Ocean Drilling' (lead by Gaku Kimura) that is seeking to estimate the earthquake likelihood of a severe Nankai Trough earthquake. Journal of Geophysical Research: Solid Earth , 125, e2019JB019047. The adjacent locked area along the Nankai trough subduction zone is a well-known seismic gap and the 2018–2019 SSE changed the stress state in favor of the occurrence of nearby subduction earthquakes. Up to approx. Four phases and seven key tasks “Life-saving” ・Disseminate timely information, and fully support evacuation from mega tsunami’s landfall in short timeframe. A biennial survey by Shizuoka Prefecture showed in 2017 that the percentage of residents “very interested” in the Nankai Trough or Tokai earthquakes stood … Now if you are looking for supplements to increase your healthy lifestyle and sexlife please visit Natural Health Source. This work was performed as part of the Chikyu Shallow Core Program (SCORE), which was jointly operated with the Japan Drilling Earth Science Consortium (J‐DESC). Nankai Trough earthquake risk map. As there have been no reports of such earthquake-induced landslides during historical megathrust earthquakes along the Nankai–Suruga Trough (e.g., Garrett et al., 2016) and other subduction zones, it would appear that it is extremely rare for an M8 earthquake in the trough to cause deformation of coastal landforms by the generation of submarine landslides. First, the recurrence intervals of earthquakes in the Tōkai and Nankai regions appears to be different before and after the 1361 CE earthquake . Fig. In this paper, we report on … But it’s always a good idea to be prepared for natural disasters when living in Japan, no matter where you are or how it smells on any given day. In addition to informing earthquake disaster research, these findings also shed light on the marine sedimentary environment and plate tectonics of the Nankai Trough. The Nankai Trough earthquake is a type of megathrust earthquake anticipated to occur along the Nankai Trough off the Pacific coast. Time-dependent inversion analysis … Thank you for your … The 1707 CE Hōei and 887 CE Nin-na earthquakes were full-length ruptures of both the Tōkai and Nankai fault segments (Fujiwara et al., 2020). The Nankai Trough is a submarine trench on the Pacific side of the Japanese archipelago stretching from the eastern part of the main island of Honshu to waters east of … March 20, 2020. The Global Navigation Satellite System network in Japan detected transient crustal deformation along the Nankai trough, Japan, from June 2018. Published online by Cambridge University Press: 14 February 2020; Abstract. The observation systems There are over 15 observation sites along the Nankai Trough: six established before the 2011 Tohoku-oki earthquake, and others deployed subsequently in order to produce a complete picture of the SDR distribution. earthquake. The Japanese government believes that the number of casualties would be huge. The two best known faults in Japan are the Itoigawa-Shizuoka Tectonic Line (ISTL) which cuts across Honshu north to south just west of Tokyo and the Median Tectonic Line (MTL) which is an east-west trending strike-slip fault that parallels the Nankai Trough from the Kii Peninsula into the heart of Kyushu. The regular and slow interplate earthquakes were separately distributed, with these distributions reflecting the heterogeneous distribution of effective strengths on the plate boundary. The committee calculated the possibility of tsunami as of Jan. 1, 2020, with reference to magnitude-8 or 9-class earthquakes along the Nankai Trough that had happened once in about 100 or 200 years. Elizabeth Sherrill, a doctoral student at Indiana University, presented her work on the Nankai trough, which has produced two major megathrust earthquakes in the recent past — the 1944 magnitude-8.1 Tonankai earthquake and the 1946 magnitude-8.4 Nankai event. "If the Nankai Trough quake happens, 320,000 people are expected to die if no measures are taken," Professor Matsuo said. 1 shows the spatial distribution of regular earthquakes with moment magnitudes (M w) of 4.3–6.5 that occurred from April 2004 to August 2019, as listed in … To be ready for a national crisis should the Nankai Trough Mega Earthquake occur, we are making every effort to promote various operations. Source: Impact, Volume 2020, Number 3, May 2020, pp. 2002), the seismicity of regular earthquakes along the Nankai Trough, especially interplate earthquakes, is quite low. [An interplate megathrust earthquake] is predicted in the near future along the Nankai Trough off southwestern Japan. Figure 1 illustrates the location of the Nankai Trough together with the epicenter of the 2011 earthquake and the resulting tsunami areas. 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