2003 tokachi earthquake

(a) Schematic view of the great-circle-path through the epicentre in Hokkaido, Japan, and the observatory in Wettzell, SE-Germany. Found inside – Page 1602003 Tokachi-oki Earthquake and Offshore Monitoring System The interplate 2003 Tokachi-oki earthquake of JMA magnitude (MJ) 8.0 occurred off the ... Young and Greene [1982] provided evidence Japan (Figure 1 and Table 1) and recorded pressure fluctu- from a few microphone arrays in North America that air ation during the 2003 Tokachi-Oki earthquake (Figure 2). Found inside – Page 4583 SIMULATIONS 3.1 Tsunami runup in rivers on the Pacific Coast of Hokkaido from the 2003 Tokachi-oki Earthquake The tsunami generated by the Tokachi-oki ... The 2003 Tokachi-oki earthquake (M w 8.0) in northern Japan generated large-amplitude long-period (4-8 s) ground motions in the Yufutsu sedimentary basin, causing severe damage to seven large oil storage tanks with floating roof structures because of severe sloshing of oil. 1). earthquake. [1] Over 800 people were injured. Using repeating earthquakes, coseismic and post-seismic velocity changes have been measured for the 1999İzmit and Düzce earthquakes (Peng & Ben-Zion 2006) and the 2003 Tokachi-Oki earthquake . The estimated tsunami source area (∼ 1.4 × 104 km2) coincides with the western-half of the ocean-bottom deformation area (∼2.52 × 104 km2) of the 1952 Tokachi-oki earthquake (Mw 8.1), previously inferred from tsunami waveform inversion. The 2003 Tokachi-oki earthquakeThe 2003 Tokachi-oki earthquake had a magnitude M JMA 8.0. [3] At least three major ports were affected by the disaster; Kushiro Port sustained great damage to one of its piers as a result of ground displacement and sand boils. The 2003 Tokachi-Oki earthquake was the largest earthquake to occur globally in that year and reruptured the portion of the Kuril-Japan Trench that last broke in the great Tokachi-Oki earthquake of 1952 (Hamada & Suzuki 2004).The abundance of local data in this region coupled with the large magnitude of the event has led to a range of models for the rupture being proposed. 1. Afterslip is concentrated adjacent to the coseismic rupture zone, between the 2003 rupture and the inferred source regions of . [1] Over 800 people were injured. [11] The center of the Rekifune Bridge, located in Taiki, Hiroo, was reported to have sunk about 0.12 m (0.39 ft) at the joint section following significant ground deformation. [4] The earthquake also caused a tsunami reaching 4 meters in height. Joint inversion of strong motion and geodetic data for the source process of the 2003 Tokachi-oki, Hokkaido, earthquake K Koketsu, K Hikima, S Miyazaki, S Ide Earth, planets and space 56 (3), 329-334 , 2004 A severe earthquake struck Hokkaido, Japan, at 4:50 am on September 26, 2003. Joint inversion of the 2003 Tokachi‐oki earthquake data leads to maximum slip values (∼6 m) confined at depths greater than ∼25 km, between 30 and 80 km northwest of the hypocenter, with a patch of slip (3 m) in the deepest part of the source (∼50 km depth). The 2003 Hokkaidō earthquake, scientifically named the 2003 Tokachi-Oki earthquake , occurred off the coast of Hokkaidō, Japan on 26 September at 04:50 local time . At a focal depth of 27 km (17 mi), this great undersea earthquake measured 8.3 on the moment magnitude scale, making it the most powerful earthquake of 2003, as well as one of the most intense earthquakes to hit Japan since modern record-keeping began in 1900. Many serious damages such as landslide, liquefaction and collapse of houses . Found inside – Page 233... 2003 Tokachi-oki earthquake (Mw 8.3), and the 2011 Tohoku earthquake (Mw 9.0). The remaining seven seismic quiescences were followed by no earthquake ... Give good old Wikipedia a great new look: Cover photo is available under {{::mainImage.info.license.name || 'Unknown'}} license. Because of the large aftershock, the post-earthquake position was based on data between 20:00 and 21:00 UTC on September 25. The objective of this study is to verify the main factors causing this damage by field investigations and earthquake response analyses. We estimate the tsunami source area of the 2003 Tokachi-oki earthquake (Mw 8.0) from observed tsunami travel times at 17 Japanese tide gauge stations. The optimized values of A-B, A and L are O(10 kPa), O(10 2 kPa) and O(10 mm), respectively. [1] GPS time series following the September 25, 2003 (UT) Tokachi‐oki earthquake (M W ∼ 8.0) reveal significant deformation. Found inside – Page 462Aftershock observation of the 2003 Tokachi-oki earthquake by using dense ocean bottom seismometer ... Seismic activity off Tokachi region, Hokkaido, Japan. The quake injured 174 and caused $97.3 million in damages. Static offsets for the Tokachi-oki earthquake have pre-viously been estimated by GSI (2003) and were used by Koketsu et al. This page was last modified on 27 September 2015, at 13:25. [4] At least three major ports were affected by the disaster; Kushiro Port sustained great damage to one of its piers as a result of ground displacement and sand boils. The event produced tsunami run-ups along the shoreline of southern Hokkaido that reached maximum heights of 4 meters. [12] Tsunami waves stranded several small boats onshore; various ship containers and oil tanks along coastlines sustained damage. (b)-(e) Superposition of rotation rate and transverse acceleration for different time windows. Combining the three data sets significantly improves the inversion results. In many procedures of seismic risk mitigation, ground motion simulations are needed to test systems or improve their effectiveness. Monetary losses in Hokkaido amounted to at least ¥213 billion (2003 JPY), or $1.9 billion (2003 USD[11]). Found inside – Page 315of the 2003 Tokachi Oki Earthquake in Hokkaido, Northern Japan 315 include a significant change in the stress state near the earthquake source region. Small cracks were reported in the gates of the Takami Hokkaidō Dam, though no threat of dam failure existed. [2] Strong shaking affected many bridges in the region, some sustaining severe damage due to relative motion between spans in excess of design standards. Epicenter of the earthquake was about 80km east-shoutheast of Erimo Cape, off shore of Tokachi. 1 Introduction. The earthquake occurred at 7:58 a.m. Japan Standard Time on 18 June, with its epicenter in the Takatsuki area of northeastern Osaka, at a depth of approximately 13 kilometres (8.1 mi). Found inside – Page 109OCEAN-BOTTOM PRESSURE VARIATIONS DURING THE 2003 TOKACHI-OKI EARTHQUAKE WENWEN LI and HARRY YEH Department of Civil, Construction and Environmental ... Found inside – Page 222Miyazawa, M., and J. Mori, 2005, Detection of triggered deep low-frequency events from the 2003 Tokachi-oki earthquake, Geophys. Res. We estimated the coseismic slip-distribution using GPS data to obtain consistent results with that inferred from waveform inversions; a maximum slip larger than 5m exists around . The Tokachi-Oki earthquake was a thrust (compressional) earthquake, and so the GPS stations on Hokkaido moved to the southeast and downwards. 1) - very This hypothesis is tested with ground motions recorded during the 2003 Tokachi-oki, Japan, earthquake by seismometers located at the ground surface (K-NET and KiK-net) and in the boreholes (KiK-net). After 2003 Tokachi Earthquake (M8.0), Hokkaido, Japan, post seismic deformation was observed, and this observation indicates occurrence of afterslip at eastern side of the earthquake. Konan junior high school in Hokkaido, the northernmost main island of Japan, suffered severe damage to its superstructure and pile foundations during the Tokachi-oki Earthquake (M=8.0), on September 26, 2003. At a focal depth of 27 km , this great undersea earthquake measured 8.3 on the moment magnitude scale, making it the most powerful earthquake of 2003, as well as one of the most intense earthquakes to hit Japan since modern . Found inside – Page 259Did deglaciation trigger intraplate seismicity in the New Madrid seismic zone? ... with 1-Hz GPS data: the 2003 Tokachi-oki earthquake (preliminary report). 1. Found inside – Page 1602003 Tokachi-oki Earthquake and Offshore Monitoring System The interplate 2003 Tokachi-oki earthquake of JMA magnitude (MJ) 8.0 occurred off the ... Over 1,500 houses or buildings – the majority of which were in Kushiro city – suffered considerable damage, with of a total of 141 reported to be partially or completely destroyed. On September 6th, 2018, at 3:07 local time, a strong earthquake of magnitude Mw = 6.6 struck the east Iburi region in Hokkaido, Japan. B, Complete signal, transverse Although soil liquefaction was observed over a broad geological area, it occurred in localized areas almost exclusively limited to man-made embankments. 1968 Tokachi-oki (Japan) Earthquake Archive In Memory of Prof. Tokuji Utsu (1928-2004) 1968 5/16 00:49 UTC 40.90N 143.34E 26km Ms=8.2, Tokachi-oki, Japan. [3], Several sea ports in the area sustained moderate damage – such as cracks and wall collapse – due to lateral ground spreading caused by liquefaction. Found inside – Page 132Six months later (in December 2003), an earthquake of 6.5M hit in the ... 2003: Tokachi-oki earthquake M= 8.1 occurred as predicted almost six months ... Found inside – Page 52Zama, S., Nishi, H., Yamada, M. and Hatayama, K. Damage of oil storage tanks caused by liquid sloshing in the 2003 Tokachi Oki earthquake and revision of ... Introduction A megathrust earthquake of a magnitude 8.1 struck Hokkaido in North Japan at 4:50 on September 26, 2003 (JST). Comparing detection level before and after installing OBSs, we found dramatic improvement of the earthquake detection level in the interesting region. [13] Tsunami waves stranded several small boats onshore; various ship containers and oil tanks along coastlines sustained damage. [1989] provide excellent descriptions of the SA with analogies and comparisons respect with the physics of the phenomenon of the crystalline structures formation. This book describes the growth and origins of earthquake science and identifies research and data collection efforts that will strengthen the scientific and social contributions of this exciting new discipline. Borehole accelerometers installed on the surface and the "bedrock" of these sites . We tested an EEW algorithm using accelerograms recorded offshore Hokkaido in the region of the 2003 Mw 8.1 Tokachi‐Oki earthquake and its aftershocks. It will enhance any encyclopedic page you visit with the magic of the WIKI 2 technology. Most tsunami studies have been conducted based on the incompressible fluid theory. ), occurred off the coast of Hokkaidō, Japan on 26 September at 04:50 local time (19:50 UTC 25 September). Next, real data assimilation for the 2003 Tokachi-oki earthquake is conducted to incorporate slip velocity data inferred from time dependent inversion of Global Navigation Satellite System time-series. The source model we estimated for the 2003 Tokachi-Oki earthquake features the maximum slip concentration on the patches at deep southeast of the epicenter. However, there are two important differences: the 1952 earthquake was initiated by an M w 6.1 subevent in the Tokachi-oki region, and its rupture extended to the adjacent Akkeshi-oki region. The earthquake left marine oil spills in its wake, though the conditions were quickly normalized. In addition to experiencing large thrust earthquakes that originate on the interface between the plates, eastern Hokkaidō experiences great earthquakes that originate from the interior of the subducted Pacific plate. The largest slip of 4.3 m is estimated on the subfault located off Hiroo. Found inside – Page 74... 1968 Tokachi-oki earthquake (Technical Committee on the 1968 Tokachi-oki earthquake, 1969) Fill Fill Fill Fill Fill Damage in 1968 Damage in 2003 Cracks ... The results are given in Figure 5 and Figure 6 for the 2003 M8.0 and 2008 M7.1 earthquakes, respectively. Found inside – Page 196Thus, the seismic site amplifications are practically evaluated using the ... vertical array site during 2003 Tokachi-oki earthquake are exemplified for the ... The 2003 Tokachi-Oki earthquake was the largest earthquake to occur globally in that year and reruptured the portion of the Kuril-Japan Trench that last broke in the great Tokachi-Oki earthquake of 1952 (Hamada & Suzuki 2004).The abundance of local data in this region coupled with the large magnitude of the event has led to a range of models for the rupture being proposed. 3.. Chapter 4 - The 2003 Tokachi-Oki earthquake 32 1. Found inside – Page 607... M., and HIROKAWA, Y. (2004), Long-period strong ground motion and damage to oil storage tanks dur to the 2003 Tokachi-oki earthquake, Zisin 57, 83–103. At the south off Hokkaido, a previous large earthquake (Mj 8.2) with almost the same epicenter as the 2003 Tokachi-oki earthquake occurred in 1952 (Fig. [10] The tremor affected a total of 36 local rivers, including the major Abashiri and Ishikari Rivers. Tsunami run-up heights of the 2003 Tokachi-oki earthquake. [3] Many properties received considerable damage, and although there were no deaths, 849 people sustained injuries. Japan Marine Science and Technology Center installed a cabled geophysical observatory system off Kushiro, Hokkaido Island in July 1999. The book also suggests designing effective interagency exercises, using professional emergency-management standards to prepare communities, and prioritizing funding based on tsunami risk. Sakhalin Kuril Islands Japan Kuril Islands dispute Ainu people. The tsunami arrivals from the 2003 Tokachi-oki Earthquake∗1. At a focal depth of 27 km (17 mi), this great undersea earthquake measured 8.3 on the moment magnitude scale, making it the most powerful earthquake of 2003, as . [9], At Kushiro Airport, the tremor caused the control tower ceiling to collapse, prompting officials to halt control work for several days. An imaginary wave front to a Found inside – Page 122In contrast, the low-V patches are generally consistent with the afterslip distribution of the 2003 Tokachi-oki megathrust earthquake (Mw 8.0). Tsunami height survey was conducted immediately after the 2003 Tokachi-oki earthquake. LETTER Earth Planets Space, 56, 311-316, 2004 Source rupture process of the 2003 Tokachi-oki earthquake determined by joint inversion of teleseismic body wave and strong ground motion data Yuji Yagi International Institute of Seismology and Earthquake Engineering, Building Research Institute, 1 Tatehara, Tsukuba, Ibaraki-ken 305-0802, Japan (Received November 30, 2003; Revised February 23 . As of 3 October 2003, a total of 65 aftershocks were reported near the main shock epicenter. [10] The majority of the destruction was confined to coastal areas, such as sea and fishing ports, mostly inflicted by subsequent tsunami waves. Found inside – Page 148PGA along the Tokachi River dike during the 2003 Tokachi-oki Earthquake. Ground Dike LG TR UD LG TR UD Name of observatory (gal) (gal) (gal) (gal) (gal) ... To my knowledge, this is the only such data set world-wide of levee performance when founded on peaty organic soils and subjected to strong earthquake shaking. After 1.2 yr of the Tokachi Earthquake, two large events (M7.1, M6.9) occurred at off Kushiro, which is located 150km east from the Tokachi Earthquake. Slip values are very low (≤1 m) updip from the hypocenter. This observato… 1 Introduction. Johnson et al. The 2003 M w 8.1 Tokachi-Oki earthquake was the first great subduction zone event to be captured by an array of ocean bottom seismometers (OBS) in its epicentral region (Figure 1). Although soil liquefaction was observed over a broad geological area, it occurred in localized areas almost exclusively limited to man-made embankments. The region has been rocked by a catastrophic earthquake and tsunami with an estimated magnitude of 9 in 1667,[6] a magnitude 8.2 event in 1952,[7] a 1968 quake measuring 8.3 Mw, and one in 2008 measuring 7.1, all bearing the name Tokachi-Oki,[7] and a 1973 quake to the immediate north along the Kuril Trench plate boundary called the 1973 Nemuro-Oki earthquake. Its epicenter was located at 41°46.7′ N and 144°04.7′ E, at a depth of 42 km, and took place at 19:50 on 25 September 2003 UTC (at 04:50 on 26 September 2003 JST) ().The focal mechanism was a reverse fault with a shallow dipping fault plane and a maximum slip of 5.8 m (Yamanaka and Kikuchi, 2003). We demonstrate the usefulness of physics-based integrated simulation of subduction earthquakes for making strong-motion predictions in a deterministic way. 2003 Tokachi-oki earthquake and the postseismic GNSS observations. The earthquake left marine oil spills in its wake, though the conditions were quickly normalized. We estimate the tsunami source area of the 2003 Tokachi-oki earthquake (Mw 8.0) from observed tsunami travel times at 17 Japanese tide gauge stations. Key words: 2003 Tokachi-oki earthquake, afterslip, geodetic inversion, Green's function, inhomogeneous elastic space, finite element method. Found inside – Page 47Nature 427:724–727. doi:10.1038/nature02251 Miyazawa M, Mori J (2005) Detection of triggered deep low frequency events from the 2003 Tokachi-oki earthquake. If it existed, the pre-slip <Mw 6 Provides a practical guide to improving operational tsunami warning systems and mitigating coastal hazard from tsunamis. [11] The tremor affected a total of 36 local rivers, including the major Abashiri and Ishikari Rivers. July 2003 Miyagi earthquake Accelerations recorded by seismic networks of Hokkaido indicated a high intensity motion . Wikipedia The Tohoku 2011 NS record pertains to the 2011 Great East Japan Earthquake (Mw 9.0), which is the most powerful earthquake ever recorded in Japan. [2], The earthquake and its associated tsunami waves destroyed several oceanside home communities and damaged many others. We tested an EEW algorithm using accelerograms recorded offshore Hokkaido in the region of the 2003 M w 8.1 Tokachi-Oki earthquake and its aftershocks. The 2003 Hokkaidō earthquake, scientifically named the 2003 Tokachi-Oki earthquake (十勝沖地震), occurred off the coast of Hokkaidō, Japan on 26 September at . "Earthquakes Cause Damages in Pakistan, Iran, Japan and Morocco", "Transient Uplift After a 17th-Century Giant Earthquake in Hokkaido", http://wayback.archive.org/web/20120316110755/http://www.kagakunavi.jp/document/show/53/documents, "The 2003 Tokachi-oki Earthquake of September 26", "Monthly exchange rate average (Japanese Yen, American Dollar) 2003", "Preliminary Observations on the Tokachi-Oki, Japan Earthquake of September 26, 2003", https://infogalactic.com/w/index.php?title=2003_Hokkaidō_earthquake&oldid=5055862, Articles with Japanese-language external links, Articles containing Japanese-language text, Creative Commons Attribution-ShareAlike License, About Infogalactic: the planetary knowledge core. Small cracks were reported in the gates of the Takami Hokkaidō Dam, though no threat of dam failure existed. The location and moment tensor solution of this earthquake are consistent with it being a result of thrust faulting between the North American Plate and the subducting Pacific Plate. The 2003 Tokachi-oki earthquake (M 8:0), which is the target of the present study, is one of the largest subduction earthquakes occurring inandaround theJapaneseislands.Its previous earthquake in the cycle was the 1952 Tokachi-oki earthquake (M 8:2); the 2003 earthquake broke the western part of the source area of the 1952 earthquake (e.g., Satake 2003, and its epicenter was located at the geographical co-ordinates (41 460 4200 N, 144 040 4200 E). CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): [1] We use four repeating earthquake sequences located near Hokkaido to identify velocity changes caused by the Mw 8.0 2003 Tokachi-Oki earthquake. 13 ], the earthquake displacement vectors shown in Figure 5 and Figure 6 for M8.1... 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