Article
Geography, Physical
Abhishek Lakhote, M. G. Thakkar, Raj Sunil Kandregula, Girish Ch Kothyari, Gaurav Chauhan
Summary: This study describes the active tectonic features of the eastern segment of the South Wagad Fault Zone (SWFZ) of the Kachchh Rift Basin, including mountain ranges, domes, and anticlines as well as structural changes and active landscapes. The research findings indicate that the eastern segment of the SWFZ may experience marginal uplift during the Middle to Late Holocene period, potentially leading to a large earthquake similar to the 2001 Bhuj earthquake.
QUATERNARY INTERNATIONAL
(2021)
Article
Geosciences, Multidisciplinary
Jorien L. N. van der Wal, V. C. Nottebaum, G. Stauch, S. A. Binnie, O. Batkhishig, F. Lehmkuhl, K. Reicherter
Summary: Active intraplate deformation in southern Mongolia has led to significant earthquakes along fault systems, causing notable landscape changes. Utilizing remote sensing and geological techniques, the study reveals the crucial role of fault activity in shaping the local landscape dynamics.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geochemistry & Geophysics
Shahryar Solaymani Azad
Summary: This study provides an overview of active-seismogenic faulting in the Tehran Region and introduces newly discovered fault zones. It reveals the transition zone between seismically active regions and discusses the potential seismic sources threatening Iran's capital. The research emphasizes the importance of constraining these fault zones due to rapid urban development in the area.
Article
Geochemistry & Geophysics
Peng Guo, Zhujun Han, Shaopeng Dong, Zebin Mao, Nan Hu, Fan Gao, Jiani Li
Summary: The study revealed four recent surface-rupturing paleoearthquakes on the Jianshui fault in the southern segment of the Xiaojiang fault zone, with ages ranging from approximately 15370 to 145 years BP. The events show irregular occurrence, indicating possible kinematic characteristics influenced by surrounding tectonic activities.
Article
Geography, Physical
Deepak M. Maurya, Prabhuti Tiwari, Mohamedharoon Shaikh, Atul K. Patidar, Naimisha Vanik, Akash Padmalal, Laxman S. Chamyal
Summary: This study deciphers the mechanism of drainage realignment involving two small rivers, providing evidence of different phases of drainage evolution through geomorphic and shallow sub-surface data.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Geosciences, Multidisciplinary
Wang-Ping Chen
Summary: The article summarizes the spatial patterns of seismic faulting in northeastern Asia, identifying the characteristics of active deformation in the region and analyzing the seismic activity in different areas.
EARTH-SCIENCE REVIEWS
(2021)
Article
Geochemistry & Geophysics
Sonny Aribowo, Laurent Husson, Danny H. Natawidjaja, Christine Authemayou, Mudrik R. Daryono, Anggraini R. Puji, Pierre G. Valla, Astyka Pamumpuni, Dadan D. Wardhana, Gino de Gelder, Didiek Djarwadi, Manon Lorcery
Summary: The research shows that the Java Back-arc Thrust is an important seismic activity in the back-arc area of Java Island, and it is necessary to understand its structure and activity to evaluate the associated geohazards. The West Java Back-arc Thrust has affected the Jakarta Basin and formed a network of transpressive structures. The West Java Back-arc Thrust has a high seismic hazard and poses a threat to the infrastructure in densely populated areas.
Article
Geosciences, Multidisciplinary
Jacques Deverchere, Antoine Barbe, Maxime Kernec, Marion Jaud, Riwalenn Ruault
Summary: This study carefully analyzes the Algerian margin and investigates the impact of tectonic inversion and seismic activity on seafloor morphology, finding evidence of fault scarps related to the 2003 earthquake. Virtual Reality techniques are proved to be useful in improving the reliability of geological interpretations.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Prantik Mandal
Summary: Seismic tomography in the Kachchh rift zone of India reveals a semi-circular region of lower seismic velocities and increased seismic velocities, which align well with areas of alkaline magmatism linked to the Deccan plume. This suggests a direct connection between this magmatism and the Deccan mantle plume, supporting the presence of a crystallized magma-conduit related to the 65 Ma Deccan mantle plume. Additionally, majority of M ≥ 5 seismic events in the region fall within this crustal anomaly, indicating the importance of mapping crustal and lithospheric structures in assessing intraplate seismic hazards.
Article
Geochemistry & Geophysics
Ming Chen, Chunhui Tao, Lars H. Ruepke, Yunlong Liu, Hanchuang Wang, Sibiao Liu
Summary: This study uses modeling to show that the activity of detachment faulting system is not solely controlled by temporal variations in magma flux, but is also influenced by lithospheric thickness. This finding is consistent with recent geophysical observations.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geochemistry & Geophysics
N. D'Agostino, A. Copley, J. Jackson, R. Koci, A. Hajrullai, L. Duni, N. Kuka
Summary: This paper investigates the kinematics and dynamics of the western Balkans, including seismic activity, geomorphological evolution, and the influence of gravitational potential energy contrasts on overall deformation. The regional motion patterns and evolutionary characteristics are inferred through observational data and geomorphological observations.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Environmental Sciences
A. Fathian, S. Atzori, H. Nazari, K. Reicherter, S. Salvi, N. Svigkas, M. Tatar, C. Tolomei, F. Yaminifard
Summary: The largest earthquake in the Zagros Mountains struck the city of Azgeleh on the Iran-Iraq border on 12 November 2017, followed by intense seismic activity. A total of 1069 events were relocated by utilizing the double-difference earthquake location technique, revealing linear alignments of events in at least four notable clusters. The seismic sequence from 2017-2018 involved significant earthquakes in various clusters, reflecting the complex fault structures in the region.
REMOTE SENSING OF ENVIRONMENT
(2021)
Article
Geochemistry & Geophysics
Jessie L. Vermeer, Mark C. Quigley, Brendan G. Duffy, Robert M. Langridge, Jarg R. Pettinga
Summary: Through the study of the structure and kinematics of the Hope, Kelly, and Alpine faults in New Zealand, it is found that the slip rate of the Alpine fault transfers to the eastern dextral central Hope Fault via the Hope-Kelly fault system. The interactions among these faults within seismogenic depths control surface rupture geometries and kinematics, showcasing ongoing structural interactions in active faulting at the intersection.
Article
Geochemistry & Geophysics
Jun Ma, Mingming Wang, Guanghao Ha, Jinghao Lei, Bengang Zhou
Summary: The Yalahe Fault (YLHF) plays a significant role in the structural deformation and seismic hazards of the Kangding segment. By studying tectonic geomorphology, trench excavations, and radiocarbon dating, we have identified six recent paleoearthquake events along the YLHF and determined their recurrence patterns and characteristics. The YLHF follows a quasiperiodic recurrence model and exhibits kinematic characteristics of transtension. It also contributes to the slip rate of the Xianshuihe Fault Zone (XSHF).
Article
Environmental Sciences
S. K. Pandita, Ahsan Ul Haq, G. M. Bhat, Yudhbir Singh, Arjun Singh
Summary: The study in Kishtwar region of Jammu and Kashmir, India, identified traces of active faults through geomorphic mapping, geological field investigations, and luminescence dating. Various tectonic landforms were mapped, indicating the presence of active extensional topography in the area. The active nature of faults was supported by dip-slip movement, fault scarp, and displacement in Holocene and recent sediments, confirmed with Ground Penetrating Radar survey.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Geography, Physical
Ajay Kumar Taloor, Lalit Mohan Joshi, Bahadur Singh Kotlia, Akhtar Alam, Girish Ch Kothyari, Raj Sunil Kandregula, Anoop Kumar Singh, Rakesh Kumar Dumka
Summary: The Mandakini and Bhilangana basins in the Garhwal Himalaya are facing unprecedented damage to life, property, and infrastructure due to torrential rains, landslides, and seismic activity. The landscape in response to episodic tectonic uplift and monsoon precipitation has been shown to affect the region's geomorphology and increase vulnerability to hazards threatening human lives. The study highlights the active nature of the Chail/Ramgarh thrust along the Balganga valley, as well as the impact of flooding during heavy rainfall events on river deposits and settlements.
QUATERNARY INTERNATIONAL
(2021)
Article
Geography, Physical
Abhishek Lakhote, M. G. Thakkar, Raj Sunil Kandregula, Chirag Jani, Girish Ch Kothyari, Gaurav Chauhan, Subhash Bhandari
Summary: The study estimated active surface deformation in the eastern Kachchh basin using DInSAR, revealing faster deformation in the northern Wagad region compared to the south. Results were corroborated by GPS data, indicating potential for significant earthquakes in the future.
QUATERNARY INTERNATIONAL
(2021)
Review
Geography, Physical
Girish Ch Kothyari, Raj Sunil Kandregula, Bahadur Singh Kotlia, Abhishek Lakhote, K. V. Swamy, Vamdev Pathak, Gaurav Chauhan, M. G. Thakkar
Summary: This study excavated six trenches to reveal seismic activity along the Kachchh Mainland Fault, identifying multiple paleoearthquakes over tens of thousands of years. The results show the slip rate and geometric characteristics of the active fault, providing important insights for seismic hazard assessment and microzonation studies in the Kachchh region.
QUATERNARY INTERNATIONAL
(2021)
Article
Geography, Physical
Abhishek Lakhote, M. G. Thakkar, Raj Sunil Kandregula, Girish Ch Kothyari, Gaurav Chauhan
Summary: This study describes the active tectonic features of the eastern segment of the South Wagad Fault Zone (SWFZ) of the Kachchh Rift Basin, including mountain ranges, domes, and anticlines as well as structural changes and active landscapes. The research findings indicate that the eastern segment of the SWFZ may experience marginal uplift during the Middle to Late Holocene period, potentially leading to a large earthquake similar to the 2001 Bhuj earthquake.
QUATERNARY INTERNATIONAL
(2021)
Article
Environmental Sciences
Raj Sunil Kandregula, Girish Ch Kothyari, K. V. Swamy, Ajay Kumar Taloor, Abhishek Lakhote, Gaurav Chauhan, M. G. Thakkar, Vamdev Pathak, Kapil Malik
Summary: This study aims to estimate surface displacement and understand the active deformation pattern in the Kachchh region post the 2001 Bhuj Earthquake using PSI and DInSAR techniques. Results show high deformation near fault zones, with surface displacement peaking in 2009 post aftershocks, and gradually declining due to ongoing seismic settlement. The findings provide valuable insights for micro zonation studies, mitigation planning, and the preparation of an active tectonic map for the region.
GEOCARTO INTERNATIONAL
(2022)
Article
Engineering, Aerospace
Girish Ch Kothyari, Neha Joshi, Ajay Kumar Taloor, Kapil Malik, Rakesh Dumka, S. P. Sati, Y. P. Sundriyal
Summary: This study estimates the active surface deformation, displacement pattern, and erosional variability using the geomorphologically sensitive morphometry and the PSInSAR technique. The results show that the Raunthi River catchment is undergoing subsidence and uplift, leading to high erosion in the Raunthi River sub-basin. The study refutes the notion that temperature rise was the major trigger for the recent disaster, but suggests that sheared lithology and preexisting fissures played a key role. It calls for detailed investigation in glacial and paraglacial regions of the Himalayas.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Khayingshing Luirei, Girish Ch Kothyari, Rakesh K. Dumka, Surendra S. Bhakuni
Summary: The study area in Arunachal Himalaya is influenced by Main Boundary Thrust (MBT) and Himalayan Frontal Thrust (HFT), with complex geological structures and active tectonic movements. Various fault structures and deformation patterns were observed, highlighting the significance of accurate analysis of geological faults and structural deformations in the region for understanding seismic activities.
GEOLOGICAL JOURNAL
(2022)
Article
Environmental Sciences
Rakesh K. Dumka, D. Suribabu, Sandip Prajapati
Summary: Urban ground subsidence has become a danger to infrastructure and society, with significant subsidence observed in Ahmedabad, India. The study utilized different techniques like PSI, GNSS, and groundwater analysis to reveal the extent of subsidence in the city. The results from various data analyses corroborate each other, highlighting the seriousness of the issue.
GEOCARTO INTERNATIONAL
(2022)
Article
Geochemistry & Geophysics
Rakesh K. Dumka, D. SuriBabu, B. S. Kotlia, Girish Ch. Kothyari, Sandip Prajapati
Summary: This paper investigates the geodynamic characteristics of the Narmada Son Lineament (NSL) by processing and analyzing GPS data from 2009 to 2016. The study reveals that the western NSL experiences maximum deformation at a rate of 1.6 mm per year, with a maximum seismic moment equivalent to a magnitude 6.0 earthquake. Additionally, the study highlights the significance of the Aravalli and Satpura mobile belts.
GEODESY AND GEODYNAMICS
(2022)
Article
Geochemistry & Geophysics
Naveen Kumar, Rakesh K. Dumka, Kapil Mohan, Sumer Chopra
Summary: The present study applies geomorphic analysis to evaluate the relative index of active tectonics in the Damanganga watershed. Based on the evaluation of various indices, the degree and gradation of tectonic activities in the study area are outlined, which is well supported by the geomorphic evidence.
GEODESY AND GEODYNAMICS
(2022)
Review
Geochemistry & Geophysics
Girish Ch. Kothyari, Raj Sunil Kandregula, Rakesh Dumka, Gaurav Chauhan, Ajay Kumar Taloor
Summary: The research aims to investigate the relationship between strain build-up, earthquake provenance, and landform evolution in the Quaternary deposits of the Kachchh Rift Basin (KRB). The analysis of accessible data and geochronology from previous studies, along with new dataset, provides insights into the Quaternary tectonic forces in the KRB. The study highlights the variability in uplift rates across active faults and suggests a complex geological history during the Quaternary period.
GEODESY AND GEODYNAMICS
(2022)
Article
Geochemistry & Geophysics
Donupudi Suribabu, Rakesh K. Dumka, Joydeep Paikray, Girish Ch. Kothyari, Mahesh Thakkar, Kandadai V. Swamy, Ajay K. Taloor, Sandip Prajapati
Summary: This study utilizes the Global Navigation Satellite System to investigate the deformation pattern in the central mainland Kachchh. The results show higher deformation rate and compressive strain in the eastern segment, indicating significant seismic hazard in this area.
GEODESY AND GEODYNAMICS
(2022)
Article
Geosciences, Multidisciplinary
Girish Ch. Kothyari, Kapil Malik, Rakesh K. Dumka, Sambit Prasanajit Naik, Rajib Biswas, Ajay Kumar Taloor, Khayingshing Luirei, Neha Joshi, Raj Sunil Kandregula
Summary: The co-seismic deformation of the 28th April 2021 Assam earthquake has been investigated using PSInSAR and validated with GPS. Due to atmospheric noise, the coseismic deformation was not visible, but the Sentinel-1 time-series data and APS processing were used to minimize the noise effect. The analysis revealed minor changes and subsidence in the affected areas, confirmed by liquefaction features and ground cracks. The GPS re-analysis showed significant deformation associated with Bomdila Fault and Jorhat Fault, indicating compressional strain in the BF zone and extensional strain in the KF zone. The earthquake was primarily associated with the BF.
JOURNAL OF APPLIED GEOPHYSICS
(2022)
Article
Geosciences, Multidisciplinary
Rakesh K. Dumka, Sandip Prajapati, Donupudi SuriBabu, Kandadai Swamy, Girish Ch Kothyari, Kapil Malik
Summary: Based on nearly a decade of GPS data, the geodetic investigation of the Kachchh Rift Basin (KRB) in western India reveals regional compressive stress and the existence of strike-slip and thrust motion. The geological observations corroborate the measurement model.
GEOLOGICAL JOURNAL
(2023)
Article
Geography, Physical
A. Securo, C. Del Gobbo, L. Rettig, S. Pillon, A. De Luca, D. Fontana, E. Benedetti Fasil, R. R. Colucci
Summary: Small glaciers in temperate mountain regions have experienced significant reduction and unprecedented melt rates in recent years. Some glaciers have transitioned from clean ice to debris-covered or even rock glaciers. This study examines the surface elevation change of the Popera Alto glacier in the Sesto Dolomites using LiDAR and Structure from Motion surveys, and analyzes its evolution in terms of surface cover and geomorphic processes. The glacier has lost an average of 0.35 m water equivalent per year over the past 16 years, with active modification of its surface cover by geomorphic processes. The role of debris and local topography feedback has allowed the resilience of the glacier, leading to a marked difference between the current environmental equilibrium line altitude (envELA) and the effective ELA (effELA) of the glacier.
Article
Geography, Physical
Zhenzhen Yan, Yaolin Shi, Lili Kang, Xiangtao Fan
Summary: This study proposes a quantitative regional deformation model based on global positioning system (GPS) data to quantitatively analyze the morphological evolution of rivers in the Three Rivers Region. It finds that tectonic deformation phases significantly control regional landscape development and drainage features.
Article
Geography, Physical
Said Mukhtar Ahmad, Nitheshnirmal Sadhasivam, Mona Lisa, Luigi Lombardo, Mustafa Kemal Emil, Amira Zaki, Cees J. Van Westen, Islam Fadel, Hakan Tanyas
Summary: In this study, we investigated a large slow-moving landslide in Northern Pakistan, using Interferometric Synthetic Aperture Radar (InSAR) analysis. Our results showed that the crown of the landslide is moving faster than the surrounding regions, while the footslope experienced high deformations. We discussed the possible roles of meteorologic and anthropogenic factors in causing these deformations.
Article
Geography, Physical
Shuang Bian, Xibin Tan, Yiduo Liu, Suoya Fan, Junfeng Gong, Chao Zhou, Feng Shi, Michael A. Murphy
Summary: The Yarlung River's drainage divide is primarily moving north due to variations in precipitation across the Himalayas. The Gangdese drainage divide shows predominantly northward and southward migration, controlled by base-level rise and downstream influences. The presence of north-trending rifts separates the drainage divides into five zones, each with a distinct migration pattern.
Article
Geography, Physical
Joon-Young Park, Seok Yoon, Deuk-Hwan Lee, Seung-Rae Lee, Hwan-Hui Lim
Summary: This study developed a multiple-regression model to estimate site-specific average growth rates of debris flow events. The proposed model was validated through a case study and showed reasonable predictions of debris flow velocities and heights.
Article
Geography, Physical
Nicholas Reilly Mccarroll, Arnaud Temme
Summary: New geochronological data from hillslope boulder armor in the Flint Hills reveal the rates and timing of lateral retreat in the landscape. Surfaces of limestone boulders dating back to the Pleistocene era were found, and the ages of the hillslope armor increased with distance from the limestone bench. The estimated rate of lateral retreat in this landscape is 0.02 mm/yr.
Article
Geography, Physical
Xinbo Yao, Yuntao Tian
Summary: By studying the Longmenshan-Minshan drainage divide, we found that it has reached a dynamic steady state, indicating a balance between erosion and rock uplift. This study also reveals the process of formation and evolution of the divide and raises questions about the effectiveness of divide migration metrics.
Article
Geography, Physical
Junhui Yu, Pin Yan, Yanlin Wang, Guangjian Zhong, Changliang Chen
Summary: The seafloor mounds in the Chaoshan Depression of the South China Sea are identified as mud volcanoes, with fluids coming from underlying mud-fluid diapirs. The hydrocarbon gases feeding the mud volcanoes and diapirs are reasoned to originate from deep Mesozoic source rocks, indicating significant Mesozoic hydrocarbon potential in the Chaoshan Depression.
Article
Geography, Physical
Marius Huber, Luc Scholtes, Jerome Lave
Summary: This paper investigates the relationships between hillslope stability and fabric anisotropy of brittle rock materials and the implications for landscape shaping. It explores the different stability modes and movement characteristics of anisotropic materials, and demonstrates the significant control of material anisotropy on landscape shaping.
Article
Geography, Physical
Shubhra Sharma, Anil D. Shukla
Summary: The study investigates the relationship between glacial dynamics and lake sedimentation during the mid-Holocene climate variability in the Southern Zanskar ranges. It utilizes geomorphological disposition, elemental geochemistry, and optical chronology of relict lake sediment to reconstruct the pattern of minor glacier responses to climate variability. The results indicate six centennial to millennial-scale climatic phases, with warmer phases represented by decreased mineralogical fine grain flux and increased coarse grain flux. The study highlights the potential of relict lake sediment and para/peri-glacial landforms in understanding glacial dynamics and climate change during the Holocene.
Article
Geography, Physical
Jean-Francois Bernier, Sydney W. Meury, Patrick Lajeunesse
Summary: In this study, an approach combining various data and observation methods was proposed to improve the monitoring of landfast ice dynamics and its geomorphic impact on sedimentary systems. The results demonstrate the ability of the approach to accurately measure interannual variations in landfast ice and constrain geomorphic changes. Additionally, the study found a strong relationship between the severity of freezing seasons and the response of landfast ice to hydrometeorological events, with different geomorphic responses observed under different winter conditions.
Article
Geography, Physical
Heping Shu, Fanyu Zhang
Summary: This study investigates the relationship between susceptibility of soil-water hazards and human activities, geoheritage sites in the Loess Plateau, China. Landslide and gully erosion susceptibility were obtained using gradient boosting and support vector machines, and a hazard matrix was formed to couple landslide and gully erosion susceptibility. The study found different trends in the magnification times of soil-water hazards chain under different scenarios.
Article
Geography, Physical
Guangqiang Qian, Zhuanling Yang, Xuegang Xing, Zhibao Dong, Youyuan Guo
Summary: Granule ripples are aeolian landforms armored against erosion by coarse grains. This study investigates their seasonal morphological evolution and migration in the Sanlongsha Dune Field. The findings show that wind events, especially those exceeding the threshold velocities of coarse grains, significantly influence the morphodynamics of granule ripples. The study highlights the importance of considering the reptation and saltation of coarse grains in future research on granule ripples.