JSTOR is part of ITHAKA, a not-for-profit organization helping the academic community use digital technologies to preserve the scholarly record and to advance research and teaching in sustainable ways. Kothyari, Girish Ch Yadav, Ram Bichar Singh Natural Environment Research Council, Global Research Fund, United Kingdom (NE/P016367/1). Presence of fines plays an important role in the constitutive behavior of the silty-sands. 2008; ... longitude, which is one of the most seismically active intraplate regions of the world (Biswas 2005;Rajendran et al. Peak seismic velocities recorded for each earthquake suggest the existence of, and place bounds on, dynamic triggering thresholds. By the comprehensive analysis of the trench, the liquefaction events from the boreholes and the depth-time curves of drill cores, we suggest a new recurrence model of major quakes in this area. time between the past three New Madrid events may be as short as 200 years and as long as 800 years, with an average of 500 From the spatial distribution and size of sand blows and their sedimentary units, we infer the Singh, Ajay P. of 200 years, we are now entering the period during which the next 1811–1812-type event could occur. The average LOS displacement of 4.3 mm/yr Stamps, D. S. The study shows that the area comprises of alternate layers of argillaceous and arenaceous soil. Presence of, clasts and comparable texture of sediments, dle band of white sand may be categorized as. Improved material response with multi-level reconsolidation and undrained cyclic loading were identified with the increased slope of the envelope bounding the peak of effective stress path. Post-liquefaction reconsolidation deformations were governed by the magnitude of Δu developed during the cyclic loading. 1). This study provides modern analogs for comparison to and interpretation of prehistoric liquefaction structures that are frequently partly eroded or poorly exposed. The KRB is a unique paleo-rift system in the world which has witnessed several prehistoric earthquakes in the past (Bilham 1998;Rajendran et al. The original, in this part are not conspicuous probably, tember. The site-specific PGA values at the surface are estimated by carrying out ground response analysis. On the side of the feeder dikes toward the edge of the channel-fill deposit, the ground surface is displaced downward as much as 1.2 m. Large ground displacements often pose the greatest threat to the integrity of engineered structures. Coseismic changes related to this earthquake include massive ground deformation in a wide low-lying tidal-flat area. The IDC underestimates Ms and mb compared with the ISC, NEIC, and Global CMT; this may be due to different measurement procedures adopted by the IDC agency. In contrast, sand blows rarely occur within the 18+-m-thick channel-fill deposit, except along its margin. 2020. The volumetric response during shearing revealed highly contractive nature of the soils indicating large liquefaction susceptibility. However, no extensive geotechnical investigation of soil deposits of the Kutch region is available. An intrusive mafic body in the lower crust and volcanic plugs in the upper crust act as stress concentrator which is responsible for seismicity in the KRB. strain is reflected in the form of seismic activity in this part and highlights the importance of the KHF zone for The PS-InSAR results are in good correlation with the GPS results of this part. Geomorphologically, the SWFZ is expressed by the Thus, we conclude that transverse tectonics is currently dominant in the Kachchh rift. The foundation. 1668 CE (Mw7.0), 1819 CE (Mw7.8), 1845 CE (Mw6.3), 1956 CE (Mw6.0), and 2001 CE (Mw7.7). and A standard penetration test (SPT N-value) was conducted at an interval of 3 m depth in every borehole. The region lies under the seismic zone III of the seismic zoning map of India. of small domes and anticlines forming a low hill range. Mandal, Prantik earthquake similar to the 2001 Bhuj earthquake or the 1819 Allah Bund earthquake in the future, owing to ... 5°E-71.5°E longitude, which is one of the most seismically active intraplate regions of the world (Biswas 2005;Rajendran et al. Seismic activity appears to be related to the reactivation of an ancient rift in a stress regime that is dominated by nearly north-south compression. Increased volume compressibility and decreased shear strength of silty-sand were captured better by eg rather than e. Liquefaction and settlement behavior of saturated and in-situ moist soils of Kutch region under strain-controlled CSS conditions were examined. the region. Measuring and modelling postseismic deformation in response to the Dec 26, 2004 coseismic of the Sumatra-Andaman subduction zone. Physical mechanisms consistent with all these observations may be similar to those that give rise to liquefaction or cyclic fatigue. From this combined dataset we show that Mmax in non-extended-SCR is M7.25±0.1 and in extended-SCR is M7.65±0.1. Lateral-spread fissures developed in the lake sediment during the mainshock, and the host deposits were vertically offset 3 to 6.5 cm. Bulletin of the Seismological Society of America. The Earthquake Potential of the New Madrid Seismic Zone, Recurrence Characteristics of Major Earthquakes in the Tangshan area, North China. The change in the sign of second-order work (d2W), the evolution of hardening modulus (Hp), and liquefaction flow potential (Ł) captured the onset of instability and the subsequent liquefaction at pressures up to 300 kPa as observed in CIUC triaxial tests. We used 400 samples for the estimation of index properties of the soil in the study area. The estimated results of the GL anomalies are compared with the existing double-difference tomograms, to understand the role of subsurface fault dynamics on the GL anomalies. In the present study, we assess seismic hazard potential and surface deformation pattern along and across the strike of major active faults in the intra-plate Kachchh Rift Basin (KRB). Large, curvilinear sand blows, resulting from earthquake-induced liquefaction, commonly occur along the margins of fine-grained channel-fill deposits in the St. Francis Basin of the New Madrid seismic zone. For silty-sands, liquefaction resistance was observed to be predominately governed by the FC. We explored the region nearly 180 years after the earthquake, and the information gathered adds to our understanding of this event and provides a fresh perspective on this unique intraplate seismogenic zone. Post-liquefaction reconsolidation and undrained cyclic response of silty-sand of Chang dam were investigated under multi-level cyclic loading to simulate the behavior of soils under earthquake aftershocks and other cyclic loads. The fort is situated, layers of sand occupies the uppermost part of the trench, We interpret the horizons containing the two types of bricks, and occur at deeper levels (Table 3). Most of the significant faults that strike EW dip towards the south and are listric. Features, is evident in most of the profiles, the third break, mounds occurring at the crest of 1819 surface as a reference, datum. Age data of liquefaction features suggest that a previous event of comparable size must have occurred 800-1000 years ago. Access scientific knowledge from anywhere. Further, the study Jawaharlal Nehru Centre for Advanced Scientific Research, Structural fabric over the seismically active Kachchh rift basin, India: Insight from world gravity model 2012, PS-InSAR derived deformation study in the Kachchh, Western India, Characterization of Major Fault Systems in the Kachchh Intraplate Region, Gujarat, India, by Focal Mechanism and Source Parameters, Regional earthquake magnitude conversion relations for the Himalayan Seismic Belt, Geotechnical Investigation for estimation of the Liquefaction hazard for the capital city of Gujarat state, Western India, Active tectonics of eastern segment of the South Wagad Fault Zone, Kachchh, Western India, Palaeoseismic investigations along the Kachchh Mainland Fault: A comprehensive review and new insights of the past earthquakes in the Kachchh basin, western India, Quantifying seismic induced damage at ancient site Manjal located in Kachchh Mainland region of Gujarat, India, Static and Cyclic Liquefaction Characteristics of Kutch Soils, Evaluating the seismic hazard in the Kachchh Region, western India using the river gradient length anomaly technique, Surface deformation related to the 1819 Kachchh earthquake: Evidence for recurrent activity, Historical and modern seismicity of Pakistan, Afghanistan, northwestern India, and southeastern Iran, Notes on the Runn of Cutch and neighbouring region, The Great Rann of Kutch: An intriguing Quaternary terrain, Engineering seismology; earthquake engineering and structural dynamics, The Cutch (Kachh) earthquake of 16th June 1819 with a revision of the great earthquake of 12th June 1897, Recurrent liquefaction induced by the 1989 Loma Prieta earthquake and 1990 and 1991 aftershocks: implications for paleoseismicity studies, Liquefaction-related ground failure: A case study in the New Madrid seismic zone, central United States, Measuring and modelling postseismic deformation of Andaman Islands, Reconstruction of Quaternary climate from Indian Himalaya. The Kachchh rift basin (KRB), located in the western continental margin of India, is very important due to repeated large magnitude occurrence of intraplate earthquakes. The active nature of the eastern SWFZ is portrayed by warping, flexuring, alluvial fans, tilted Radiocarbon dates obtained from this section are also shown. large earthquakes during the A.D. 900 and A.D. 1450 events as well as in 1811–1812. Check if you have access via personal or institutional login. Request Permissions. The 2.5D density model of the regional gravity anomaly reveals the presence of high-density magmatic underplating layer and intrusive mafic body in the lower crust that is in accordance with the previous studies. The accumulated strain is getting released in the form of earthquakes and the Kachchh rift basin has already experienced several strong to major earthquakes during last two centuries, i.e. Magma underplating and storage in the crust-building process beneath the Kutch region, NW India, Reactivation of ancient rift systems triggers devastating intraplate earthquakes, Crustal and upper mantle structure in the Amazon region (Brazil) determined with broadband mobile stations, An anomalous high velocity layer at shallow crustal depths in the Narmada zone, India, Lithospheric strength and intraplate seismicity in the New Madrid seismic zone, First active fault exposure identified along Kachchh mainland fault: evidence from trench extraction near Lodai village, Gujarat, western India, Stress rotation in the Kachchh rift zone, Gujarat, India, Crustal shear wave splitting in the epicentral zone of the 2001 M, Upper mantle seismic anisotropy in the intra-continental Kachchh rift zone, Gujarat, India, Passive-source seismic imaging of the crust and upper mantle beneath the 2001 M, Seismogenesis of the uninterrupted occurrence of the aftershock activity in the 2001 Bhuj earthquake zone, Gujarat, India, during 2001–2010, Three-dimensional velocity imaging of the Kachchh seismic zone, Gujarat, India, Relocation of aftershocks, focal mechanisms and stress inversion: implications toward the seismo-tectonics of the causative fault zone of M, Relocation of aftershocks of the 2001 Bhuj earthquake: a new insight into seismotectonics of the Kachchh seismic zone, Gujarat, India, Seismic imaging of the aftershock zone of the 2001 M, Self-organized fractal seismicity and b-value of aftershocks of 2001 Bhuj earthquake in Kutch (India), Results from local earthquake velocity tomography: implications toward the source process involved in generating the 2001 Bhuj earthquake in the lower crust beneath Kachchh (India), Low coda-Qc in the epicentral region of the 2001 Bhuj earthquake of M, Coulomb static stress variations in the Kachchh, Gujarat, India: implications for the occurrences of two recent earthquakes (M, Iterative de-convolution of the local waveforms: characterization of the seismic sources in Kachchh, India, Thermomechanical structure of the central Indian shield: constraints from deep crustal seismicity, Analog models of restraining stop-overs in strike-slip fault systems, American Association of Petroleum Geologists Bulletin, Crack density, saturation rate and porosity at the 2001 Bhuj, India, earthquake hypocenter: a fluid-driven earthquake, Bulletin of the Earthquake Research Institute, University of Tokyo, Composition of the crust beneath the Kenya Rift, Crustal structure of the northern Mississippi embayment and a comparison with other continental rift zones, Active fault traces along Bhuj fault and Katrol hill fault, and trenching survey at Wandhay, Kachchh, Gujarat, India, Active low-angle reverse fault and wide quaternary deformation identified in Jhura Trench across Kachchh Mainland Fault, Kachchh, Gujarat, India, Seismological features of the Satpura earthquake of the 14th March 1938, Proceedings of Indian Academy of Sciences, East African earthquakes below 20 km depth and their implications for crustal structure, High pore-fluid pressures at Bhuj, inferred from 90°-flips in shear-wave polarizations, Upwarped high velocity mafic crust, subsurface tectonics and causes of intra plate Latur-Killari (M 6.2) and Koyna (M 6.3) earthquakes, India: a comparative study, The motion and active deformation of India, Petrology, geochemistry and paleomagnetism of the earliest magmatic rocks of Deccan Volcanic Province, Kutch, Northwest India, Kinematics of the New Madrid seismic zone, central United States, based on stepover models, Crustal and upper mantle structure of the Kenya rift, Using geological data for earthquake studies: a perspective from peninsular India, Characteristics of the 1997 Jabalpur earthquake and their bearing on its mechanism, Characteristics of deformation and past seismicity associated with the 1819 Kutch earthquake, northwestern India, Historical constraints on previous seismic activity and morphologic changes near the source zone of the 1819 Rann of Kachchh earthquake: further light on the penultimate event, Seismogenesis in the stable continental regions and implications for hazard assessment: two recent examples from India, The deadliest stable continental region earthquake that occurred near Bhuj on 26 January 2001, Stress pulse migration by viscoelastic process for long-distance delayed triggering of shocks in Gujarat, India, after the 2001 M, Extreme Events and Natural Hazards: The Complexity Perspective, Triggered/migrated seismicity due to the 2001 M, Petrology, geochemistry and magnetic properties of Sadara Sill: evidence of rift related magmatism from Kutch Basin, Northwest India, Post seismic crustal deformation and strain rate in Bhuj region, western India, after the 2001 January 26 earthquake, A theory of creep waves propagating along a transform fault, A physical interpretation of the Haicheng earthquake prediction, Deccan plume, lithospheric rifting, and volcanism in Kutch, India, Crustal and upper mantle structure of Peninsular India and source parameters of the May 21, 1997, Jabalpur earthquake [M, 3-D seismic structure of the Kachchh, Gujarat, and its implications for the earthquake hazard mitigation, New insight into crustal heterogeneity beneath the 2001 Bhuj earthquake region of Northwest India and its implications for rupture initiations, Crustal heterogeneities beneath the 2011 Talala, Saurashtra earthquake, Gujarat, India source zone: seismological evidence for neo-tectonics, Seismic evidence for the influence of fluids on the 2005 west off Fukuoka prefecture earthquake in southwest Japan, Physics of the Earth and Planetary Interiors, Imaging crust and upper mantle seismic structure in the southwestern United States using teleseismic receiver functions, Tomography of the source area of the 1995 Kobe earthquake: evidence for fluids at the hypocenter, A Physical Reconstruction and Risk Assessment, Large earthquake generation cycles and accompanying seismic activity, Caribbean Plate and Middle America subduction zone, Southeast Asia, Australia, New Zealand, and Pacific Islands, India, the Himalaya, Mainland China, and Central Asia.
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