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Co-Authors
- R. K. Chadha
- A. Manglik
- K. Sain
- Harsh Gupta
- D. Shashidhar
- K. Mallika
- N. Purnachandra Rao
- H. V. S. Satyanarayana
- Satish Saha
- R. T. B. Naik
- Shailesh Nayak
- Y. J. Bhaskar Rao
- B. K. Bansal
- Sukanta Roy
- B. Naresh
- P. Solomon Raju
- G. Suresh
- A. N. S. Sarma
- R. Vijaya Ragavan
- Prantik Mandal
- R. Vijaya Raghavan
- Sandeep Gupta
- D. Srinivas
- M. Sekhar
- K. Sivaram
- Sudesh Kumar
- Y. V. V. S. B. Murthy
- N. K. Borah
- B. N. V. Prasad
- V. M. Tiwari
- Dhiraj Kumar Singh
- G. Vikas
- Sunil Roy
- Y. V. V. B. S. N. Murthy
- A. N. S. Sharma
- M. Shekar
- R. Pradeep Kumar
- T. Seshunarayana
- Narender Bodige
- D. Hima Chandan
- C. V. R. Murty
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Srinagesh, D.
- Planet Earth-Focal Theme for the 94th Session of Indian Science Congress
Abstract Views :177 |
PDF Views:134
Authors
Affiliations
1 National Geophysical Research Institute Hyderabad, IN
1 National Geophysical Research Institute Hyderabad, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 69, No 4 (2007), Pagination: 873-874Abstract
No Abstract.Full Text
- Short Term Earthquake Forecasts at Koyna, India
Abstract Views :206 |
PDF Views:0
Authors
Harsh Gupta
1,
D. Shashidhar
2,
K. Mallika
2,
N. Purnachandra Rao
2,
D. Srinagesh
2,
H. V. S. Satyanarayana
2,
Satish Saha
2,
R. T. B. Naik
2
Affiliations
1 National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, Hyderabad - 500 007, IN
2 National Geophysical Research Institute (CSIR), Uppal Road, Hyderabad - 500 007, IN
1 National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, Hyderabad - 500 007, IN
2 National Geophysical Research Institute (CSIR), Uppal Road, Hyderabad - 500 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 1 (2011), Pagination: 5-11Abstract
Earthquake activity is monitored in real time at the Koyna reservoir in western India, beginning from August 2005 and successful short term forecasts have been made of M ∼ 4 earthquakes. The basis of these forecasts is the observation of nucleation that precedes such earthquakes. Here we report that a total of 29 earthquakes in the magnitude range of 3.5 to 5.1 occurred in the region during the period of August 2005 through May 2010. These earthquakes could broadly be put in three zones. Zone-A has been most active accounting for 18 earthquakes, while 5 earthquakes in Zone-B and 6 in Zone-C have occurred. Earthquakes in Zone-A are preceded by well defined nucleation, while it is not the case with zones B and C. This indicates the complexity of the earthquakes processes and the fact that even in a small seismically active area of only 20 km x 30 km earthquake forecast is difficult.Keywords
Earthquake, Nucleation, Forecast, Koyna Reservoir, Maharashtra.
- International Workshop on Deep Scientific Drilling to Study Reservoir Triggered Earthquakes in Koyna, India
Abstract Views :171 |
PDF Views:131
Authors
Harsh Gupta
,
Shailesh Nayak
,
Y. J. Bhaskar Rao
,
R. K. Chadha
,
B. K. Bansal
,
D. Srinagesh
,
N. Purnachandra Rao
,
Sukanta Roy
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 5 (2011), Pagination: 488-490Abstract
No Abstract.Full Text
- Recent Microseismicity in Nellore District of Andhra Pradesh
Abstract Views :216 |
PDF Views:84
Authors
B. Naresh
1,
P. Solomon Raju
1,
G. Suresh
1,
A. N. S. Sarma
1,
R. Vijaya Ragavan
1,
Satish Saha
1,
D. Srinagesh
1
Affiliations
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
Source
Current Science, Vol 115, No 7 (2018), Pagination: 1247-1249Abstract
The Nellore district in the Southeastern part of Andhra Pradesh is one of the nine coastal districts of the state. The microtremor activity in the district started in October 2015 and continued up to July 2016. During this period, a few hundred tremors were recorded by the temporary seismic network installed locally by the CSIR-NGRI. Apart from the data recorded by this network, those from the semipermanent seismic stations at Racherla, Addanki, Cuddapah, Srikalahasti and Srisailam were used in the study1.Full Text
References
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- Ramam, P. K. and Murthy, V. N., Geol. Soc. India, 1997, 245.
- Saha, D., Gondwana Res., 2002, 5, 701— 719.
- Kaila, K. L. et al., J. Geol. Soc. India, 1979, 20, 307-333.
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- Upadhyay, D., Precambrian Res., 2008, 162, 59-69.
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- Lermo, J. and Chavez-Garcia, F. J., Bull. Seismol. Soc. Am., 1993, 83(5), 1574-1594.
- Vasudevan, D. and Rao, T. M., Indian Miner., 1975, 16, 43-47.
- Digital Seismic Network:To Map Himalayan Orogen and Seismic Hazard
Abstract Views :273 |
PDF Views:72
Authors
D. Srinagesh
1,
Prantik Mandal
1,
R. Vijaya Raghavan
1,
Sandeep Gupta
1,
G. Suresh
1,
D. Srinivas
1,
Satish Saha
1,
M. Sekhar
1,
K. Sivaram
1,
Sudesh Kumar
1,
P. Solomon Raju
1,
A. N. S. Sarma
1,
Y. V. V. S. B. Murthy
1,
N. K. Borah
1,
B. Naresh
1,
B. N. V. Prasad
1,
V. M. Tiwari
1
Affiliations
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
Source
Current Science, Vol 116, No 4 (2019), Pagination: 518-519Abstract
According to the Gutenberg–Richter law1, at least one earthquake of magnitude greater than 7 occurs every month along the seismically active belts in the world. Earthquakes are the manifestation of fault slip at depths, thus, there is no direct method to measure or observe them. However, seismometers can record ground velocity or acceleration caused by the occurrence of an earthquake when a fault slip occurs at depth. Therefore, setting up a seismic network is inevitable to understand the physics of earthquake processes, thereby, mitigating earthquake hazard.Full Text
References
- Gutenberg, B. and Richter, C. F., Ann. Geofis., 1956, 9, 1–15.
- Ambraseys, N. N. and Jackson, D., Curr. Sci., 2003, 84, 570–582.
- Gupta, H. and Gahalaut, V. K., Gondwana Res., 2014, 25, 204–213.
- Ader, T. et al., J. Geophys. Res., 2012, 117, 23–40.
- Bilham, R., Nature Geosci., 2015, 8, 582– 584.
- An Appraisal of Recent Earthquake Activity in Palghar Region, Maharashtra, India
Abstract Views :279 |
PDF Views:79
Authors
D. Srinagesh
1,
Dhiraj Kumar Singh
1,
G. Vikas
1,
B. Naresh
1,
Sunil Roy
1,
Y. V. V. B. S. N. Murthy
1,
P. Solomon Raju
1,
G. Suresh
1,
Prantik Mandal
1,
A. N. S. Sharma
1,
M. Shekar
1,
V. M. Tiwari
1
Affiliations
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
1 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
Source
Current Science, Vol 118, No 10 (2020), Pagination: 1592-1598Abstract
The present study focuses on the recent earthquake activity in Palghar region, Maharashtra, India. Until 31 August 2019, a total of 4854 earthquakes have been located here, whose local magnitude (ML) varied from 0.1 to 4.1. Majority of the earthquakes (~94%) were located in the depth range 4–16 km. The precise earthquake relocations reveal two clusters. The N–S trending cluster north of 20.04°N extends to a depth of 10 km, whereas the NE–SW trending cluster to the south of 20.04°N extends to 16 km depth. The shallow northern cluster is noticed to be sandwiched between two mapped mafic intrusions, whereas the deeper southern segment shows earthquakes clustering around the mafic intrusion. The modelled composite focal mechanism solutions for both the north and south clusters suggest normal faulting with a minor strike–slip component as the dominant deformation mode for the Palghar region. From relocated seismici-ty, we have detected a deeper seismically active zone (with M> 3) at 4–16 km depth, occupying a crustal volume of 1440 km 3 (i.e. 20 km (in N–S) ×6 km (in E– W) and 12 km (in depth)) that dips toward 20°S and 70°W. This could be attributed to the large crustal stresses induced by the mafic intrusive body below the region.Keywords
Crustal Stress, Deformation Mode, Earth-quake, Mafic Intrusion, Relocations, Seismic Activity.Full Text
References
- Reeves, C. V. and de Wit, M., Making ends meet in Gondwana: retracing the transforms of the Indian Ocean and reconnecting continental shear zones. Terra Nova, 2002, 12(6), 272–280.
- Courtillot, V. E., Besse, J., Vandamme, D., Montigny, R., Jaeger, J. and Cappetta, H., Deccan flood basalts at the Cretaceous/ Tertiary boundary? Earth Planet. Sci. Lett., 1986, 80, 361–374.
- Deshpande, G. G. and Pitale, U. L., Geology of Maharashtra, Geological Society of India, 2014, pp. 1–265.
- Kissling, E., Geotomography with local earthquake data. Rev. Geophys., 1988, 26, 659–698.
- Chatelain, J. L., Roecker, S. W., Hatzfeld, D. and Molnar, P., Microearthquake seismicity and fault plane solutions in the Hindu Kush region and their tectonic implications. J. Geophys. Res., 1980, 85, 1365–1387.
- Gomberg, J. S., Shedlock, K. M. and Roecker, S. W., The effect of S-wave arrival times on the accuracy of hypocenter estimation. Bull. Seismol. Soc. Am., 1990, 80, 1605–1628.
- Dasgupta, S. et al., Seismotectonic Atlas of India and its Environs, Geological Survey of India, 2000.
- Ottemoller, L., Voss, P. and Havskov, J., Seisan Earthquake Analysis Software, Version 11, 2018.
- Kaila, K. L., Murthy, P. R. K., Rao, V. K. and Kharetchko, G. E., Crustal structure from deep seismic sounding along the Koyna II (Kelsi–Loni) profile in the Deccan Trap area, India. Tectonophys, 1981, 73, 365–384.
- Kaila, K. L., Reddy, P. R., Dixit, M. M. and Lazarenko, M. A., Deep crustal structure at Koyna, Maharashtra, indicated by deep seismic sounding. J. Geol. Soc. India, 1981, 22, 1–16.
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- Wiemer, S., A software package to analyze seismicity: ZMAP. Seismol. Res. Lett., 2001, 72(3), 373–382.
- Vulnerability Assessment of a Heritage Structure Subjected to Blast-Induced Ground Motions
Abstract Views :232 |
PDF Views:83
Authors
R. Pradeep Kumar
1,
D. Srinagesh
2,
T. Seshunarayana
2,
R. K. Chadha
2,
Narender Bodige
3,
G. Suresh
2,
D. Hima Chandan
1,
C. V. R. Murty
4
Affiliations
1 Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, IN
2 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
3 Department of Civil Engineering, Anurag Group of Institutions, Hyderabad 501 301, IN
4 Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600 036, IN
1 Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, IN
2 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
3 Department of Civil Engineering, Anurag Group of Institutions, Hyderabad 501 301, IN
4 Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600 036, IN
Source
Current Science, Vol 119, No 7 (2020), Pagination: 1131-1141Abstract
A ground-structure vibration response study was carried out at the Ramappa Temple near Warangal, Telangana, India, shaken by underground blasting undertaken at the neighbouring Devadula Lift Irrigation Project to build water tunnels. The intensities of vibrations were examined – subsurface and ground vibrations were measured using velocity meters, and shaking at the temple using accelerometers. The study concluded that high-frequency vibrations of the ground were filtered by the soft natural clay bed underneath, and vibrations at the temple structure were small and well below the levels that can cause damage to it. Here we present the scientific findings of the vibrations recorded during the blasts and their implications.Keywords
Heritage Structure, Structural Response, Tunnel Blasting, Vibrations, Vulnerability Assessment.Full Text
References
- Rao, M. P., Engineering and technological achievements during the Kakatiya period. Report of the INTACH, Warangal Chapter, 1993.
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