Article
Geosciences, Multidisciplinary
Uma Anuradha Madugula, Rajesh Rekapalli, K. Sudheer, P. Jagadeesh, H. V. S. Satyanarayana
Summary: Koyna, located near the West Coast of India, is a prime example of artificial water reservoir-induced seismicity. Monitoring and experiments have shown a correlation between the unloading of the reservoir and the triggered earthquakes in the Koyna area from 2015 to 2018. Deep drilling experiments have demonstrated a significant impact on seismic activity in the region.
Article
Geochemistry & Geophysics
Sunil K. Roy, D. Shashidhar
Summary: This study investigates crustal anisotropy beneath the Koyna-Warna region using waveforms of local earthquakes recorded at seismic stations. The study examines the variations in fast polarization azimuths and delay times. The results suggest that the anisotropy in the region is due to stress-induced alignment of fluid-filled cracks and pore throats along the maximum horizontal stress direction. The orientation of the fast polarization azimuths could be associated with lithological heterogeneity and structure-induced anisotropy.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2023)
Article
Geochemistry & Geophysics
Linxuan Li, Gang Luo
Summary: Both artificial and natural factors can influence regional seismic activity. In the Three Gorges Reservoir area, the seasonal variations in reservoir water level and natural rainfall are related to seismicity near and far from the reservoir. Water level fluctuation affects seismicity near the reservoir, while seasonal precipitation has an impact on seismic activity further away from the reservoir.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geosciences, Multidisciplinary
C. R. Mahato, D. Shashidhar
Summary: The spectral ratio technique (SRT) was applied to estimate the source parameters of local earthquakes in the Koyna-Warna region of western India. The study compared the corner frequencies and stress drops of a new earthquake sequence with the behavior of an existing seismicity cluster in the area. It was found that the stress drops of the two clusters showed slight differences, but the combined trend of the median stress drops followed a constant stress drop scaling commonly observed in natural tectonic earthquakes.
JOURNAL OF EARTH SYSTEM SCIENCE
(2022)
Article
Environmental Sciences
Jonathan V. Lewis, Emily A. Knapp, Shivani Bakre, Aisha S. Dickerson, Theresa M. Bastain, Casper Bendixsen, Deborah H. Bennett, Carlos A. Camargo, Andrea E. Cassidy-Bushrow, Elena Colicino, Viren D'Sa, Dana Dabelea, Sean Deoni, Anne L. Dunlop, Amy J. Elliott, Shohreh F. Farzan, Assiamira Ferrara, Rebecca C. Fry, Tina Hartert, Caitlin G. Howe, Linda G. Kahn, Margaret R. Karagas, Teng-Fei Ma, Daphne Koinis-Mitchell, Debra MacKenzie, Luis E. Maldonado, Francheska M. Merced-Nieves, Jenae M. Neiderhiser, Anne E. Nigra, Zhongzheng Niu, Sara S. Nozadi, Zorimar Rivera-Nunez, Thomas G. O'Connor, Sarah Osmundson, Amy M. Padula, Alicia K. Peterson, Allison R. Sherris, Anne Starling, Jennifer K. Straughen, Rosalind J. Wright, Qi Zhao, Amii M. Kress
Summary: This study examined the relationship between preconception and prenatal exposure to arsenic violations in drinking water and birth outcomes. The results showed that continuous exposure to arsenic in drinking water was associated with higher birth weight. However, no significant associations were found between preconception or prenatal exposure to arsenic violations and other birth outcomes.
ENVIRONMENTAL RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Harsh K. Gupta
Summary: Anthropogenic activities such as mining, production, reservoir filling, and energy harnessing can induce earthquakes, and the reservoir-triggered seismicity near the Koyna dam has continued until the present day.
JOURNAL OF EARTH SYSTEM SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Kilian B. Kemna, Marco P. Roth, Ricarda M. Wache, Rebecca M. Harrington, Yajing Liu
Summary: This study uses a machine learning approach to analyze the correlation between hydraulic fracturing operations and induced seismicity in the Western Canadian Sedimentary Basin. The results identify relevant combinations of geological and operational parameters related to earthquakes, and suggest that stages targeting specific geological units are more likely to induce seismic events.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Kusumita Arora, Y. Srinu
Summary: After 60 years of studying reservoir-triggered earthquakes in the Koyna-Warna region, many questions remain unanswered. However, through analysis of surface features and geomorphic parameters, it has been found that earthquake clusters are associated with regions of tectonic control, with differences in signatures between the Koyna and Warna regions.
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA
(2021)
Article
Geosciences, Multidisciplinary
Tarun C. Khanna, David L. Barbeau, Kusumita Arora, Sawant Sariput
Summary: This paper provides a unique opportunity to study the Precambrian continental crust in the Indian shield by analyzing the well-core extracted from deep borehole beneath the Deccan Traps. Petrological, geochemical, and zircon U-Pb geochronology analysis reveals that the studied granitoids are similar to low and high-HREE TTGs, suggesting a Neoarchean subduction zone origin.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geochemistry & Geophysics
Sanjay Kumar, Prakash Kumar, Sai Vijay Kumar
Summary: In this study, a three-dimensional (3D) (Qp) P-wave attenuation model of the uppermost crust (0-10 km depth) of the Koyna-Warna region (India) was developed. The inversion of attenuation operator (t*) was used to deduce the 3D Qp attenuation model using simul2000 code by assuming t* is independent of frequency. A total of 276 earthquakes (1.0 <= ML <= 3.5) were used, providing 2045 t* values. The results showed low Qp anomalies (around 200-350) at shallow depths (0-3 km) potentially related to fracturing and cracks, while high Qp values (around 500-600) were found at 5-7 km depth in the intense seismic activity zone.
Article
Geosciences, Multidisciplinary
Harsh K. Gupta
Summary: Anthropogenic seismicity has been observed in various activities such as filling artificial water reservoirs and mining, with artificial water reservoir triggered seismicity (RTS) being the most prominent globally. The Koyna region in India experienced a significant seismic event in 1967 and continues to have ongoing RTS activity for near field studies of earthquakes.
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA
(2021)
Article
Endocrinology & Metabolism
Jie Cao, Didi Zuo, Tingting Han, Hongxia Liu, Wenwen Liu, Jia Zhang, Yurong Weng, Xian Jin, Zengai Chen, Yaomin Hu
Summary: Skeletal muscle mass plays a crucial role in health and disease. This study found a strong correlation between erector spinae muscle area assessed from chest CT and bioelectrical impedance analysis (BIA), especially in male subjects and obese individuals.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Geochemistry & Geophysics
Mauricio Reyes Canales, German Rodriguez-Pradilla, Javad Yusifbayov, Mirko van der Baan
Summary: The study analyzed the induced seismicity related to hydraulic fracturing activities in the Duvernay Formation near Fox Creek, Alberta, Canada. It found that the seismic hazard has consistently decreased since 2015, with distinct features in Eastern and Western regions, while no seismic activity was observed in hydraulic fracturing areas. The decreasing seismic hazard may be associated with changes in fracturing operations and mitigation strategies, along with additional regulatory implementations to prevent significant seismic events.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Geosciences, Multidisciplinary
Jian Kuang, Shihua Qi, Xiangyun Hu, Zhong Liu
Summary: This study investigates the mechanism of reservoir induced seismicity (RIS) in the Xinfengjiang reservoir (XFJR) in southeast China. The results reveal the presence of asthenospheric upwelling beneath the XFJR, which causes the lifting of blocks. The compressional stress from the north drift of the Philippine Sea plate, combined with the lifting force, shapes the stress field, geological structures, and earthquake distribution in the XFJR. Water level changes and pore diffusion have been the main factors inducing seismicity since 1980.
Article
Environmental Sciences
Biswajit Nath, Ramesh P. Singh, Vineet K. Gahalaut, Ajay P. Singh
Summary: The Palghar region in north Maharashtra, India has experienced a series of low magnitude earthquake swarms, possibly triggered by fluid migration during seasonal rainfall. Analysis of satellite data reveals a correlation between the increase in lineament density and amount of rainfall with the increasing frequency of earthquakes.
Article
Geochemistry & Geophysics
Luciano Telesca, Fakhraddin Kadirov, Gurban Yetirmishli, Rafig Safarov, Gulam Babayev, Saida Ismaylova
JOURNAL OF SEISMOLOGY
(2017)
Article
Physics, Multidisciplinary
Luciano Telesca, Michele Lovallo, E. Leticia Flores-Marquez
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2017)
Article
Oceanography
Luciano Telesca, Jorge O. Pierini, Michele Lovallo, Eduardo Santamaria-del-Angel
Article
Physics, Multidisciplinary
Luciano Telesca, Catalina Haro-Perez, L. Rebeca Moreno-Torres, Alejandro Ramirez-Rojas
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2018)
Article
Mathematics, Applied
Jennifer Perez-Oregon, Michele Lovallo, Luciano Telesca
Article
Mathematics, Applied
Luciano Telesca, Zbigniew Czechowski
Article
Meteorology & Atmospheric Sciences
Antonio Samuel Alves da Silva, Romulo Simoes Cezar Menezes, Luciano Telesca, Borko Stosic, Tatijana Stosic
Summary: The study applied the Fisher-Shannon method to analyze the Standardized Precipitation Index (SPI) in Northeast Brazil and found that short-term dry/wet conditions display higher organization in inland areas, while long-term conditions show higher disorder in coastal regions.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Luciano Telesca, Anh Tuan Thai, Michele Lovallo, Dinh Trong Cao, Le Minh Nguyen
Summary: The study investigates the reservoir-triggered seismicity at the Song Tranh 2 reservoir in Vietnam using Shannon entropy. It reveals clear links between the temporal fluctuations of the water level and the time-varying Shannon entropy of the seismicity interevent times. This supports the belief that the reservoir operational regime is a source of the seismicity. Additionally, Shannon entropy sheds light on the tectonic mechanisms behind the reservoir-triggered seismicity, showing that stress changes due to water level variation lead to greater disorder and instability, resulting in increased seismic activity.
APPLIED SCIENCES-BASEL
(2022)
Article
Physics, Multidisciplinary
Luciano Telesca, Anh Tuan Thai, Michele Lovallo, Dinh Trong Cao
Summary: This study performs a visibility graph analysis of seismicity triggered by the Song Tranh 2 hydropower plant in Vietnam, and analyzes the relationship between seismic (Gutenberg-Richter b-value) and topological (k-M slope) parameters of seismicity. The findings indicate that the relationship between the b-value and k-M slope of the investigated seismicity is consistent with that characterizing tectonic seismicity.
Article
Physics, Multidisciplinary
Luciano Telesca, Angelo Aromando, Farid Faridani, Michele Lovallo, Gianfranco Cardettini, Nicodemo Abate, Giancarlo Papitto, Rosa Lasaponara
Summary: The study aimed to evaluate the potential of the Fisher-Shannon statistical method applied to the MODIS satellite time series for detecting small multiyear trends and changes in vegetation cover. Analysis of three peri-urban parks near Rome and Naples revealed that Castel Volturno exhibited the highest Shannon entropy and lowest Fisher Information Measure, indicating a low level of order and organization in the vegetation time series. Comparison with in situ analyzed and independent data sets confirmed the existence of subtle, small multiyear trends and changes in MODIS-based vegetation indices.
Article
Physics, Multidisciplinary
Rui Ba, Michele Lovallo, Weiguo Song, Hui Zhang, Luciano Telesca
Summary: This study investigates the recovery process of vegetation after the Camp Fire in California in 2018 by analyzing the time series of MODIS Aqua and Terra Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) using multifractal detrended fluctuation analysis. The results indicate that the vegetation index time series exhibit six- and twelve-month periodicities, with longer periods being more pronounced in areas affected by two fires. The fires also lead to increased persistence and complexity of the NDVI and EVI time series, suggesting the presence of positive feedback mechanisms in the recovery process.
Review
Geosciences, Multidisciplinary
Marianna Balasco, Vincenzo Lapenna, Enzo Rizzo, Luciano Telesca
Summary: Electrical Resistivity Tomography (ERT) is a well-established method in near-surface geophysics, but deep ERT (DERT) mapping of subsurface resistivity patterns beyond 1 km depth is limited. This review aims to define DERT method clearly and identify a depth threshold for investigation. Methodological and technological aspects are addressed, with future research directions focusing on machine learning for improved data processing and interpretation.
Article
Physics, Multidisciplinary
Davide Zaccagnino, Luciano Telesca, Onur Tan, Carlo Doglioni
Summary: By clustering analysis of Turkish seismicity, it is found that statistical properties of seismic activity are related to the regional seismogenic potential. The clustering properties of seismic activity can be considered as a possible additional information source for the assessment of seismic hazard.
Article
Mathematics, Interdisciplinary Applications
Luciano Telesca, Nicodemo Abate, Farid Faridani, Michele Lovallo, Rosa Lasaponara
Summary: Xylella fastidiosa is a phytobacterium that causes severe diseases in various species. Its infection on olive trees leads to the olive quick decline syndrome, resulting in rapid tree desiccation and death. This study analyzes MODIS satellite evapotranspiration data using the Fisher-Shannon method and the multifractal detrended fluctuation analysis to detect the presence of Xylella fastidiosa. The results indicate that these methods can effectively differentiate between infected and healthy sites, with the maximum of the multifractal spectrum performing the best. These findings suggest the potential use of these methods for early detection of plant diseases.
FRACTAL AND FRACTIONAL
(2023)
Article
Geochemistry & Geophysics
Ryan Schultz, Luciano Telesca
PURE AND APPLIED GEOPHYSICS
(2018)
