Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Idukki Earthquake and the Associated Tectonics from Gravity Study


Affiliations
1 National Geophysical Research Institute, Hyderabad 500007, India
     

   Subscribe/Renew Journal


The Idukki earthquake with epicentre around Nedumkandam, approximately 20 km east of the Tdukki reservoir, has been in the news. A detailed gravity profile from Bangalore to Trivandrum across Cardamom-Palni hill ranges has delineated a fault type of anomaly coinciding with the epicentre of the earthquake whose modeHing suggests a shallow fault extending up to 10-11 km. This feature being associated with a thick crust in this region controlled by deep faults might have got reactivated to cause this earthquake.
Subscription Login to verify subscription
User
Notifications
Font Size

Abstract Views: 191

PDF Views: 2




  • Idukki Earthquake and the Associated Tectonics from Gravity Study

Abstract Views: 191  |  PDF Views: 2

Authors

D. C. Mishra
National Geophysical Research Institute, Hyderabad 500007, India
A. P. Singh
National Geophysical Research Institute, Hyderabad 500007, India
M. B. S. Vyaghreswara Rao
National Geophysical Research Institute, Hyderabad 500007, India

Abstract


The Idukki earthquake with epicentre around Nedumkandam, approximately 20 km east of the Tdukki reservoir, has been in the news. A detailed gravity profile from Bangalore to Trivandrum across Cardamom-Palni hill ranges has delineated a fault type of anomaly coinciding with the epicentre of the earthquake whose modeHing suggests a shallow fault extending up to 10-11 km. This feature being associated with a thick crust in this region controlled by deep faults might have got reactivated to cause this earthquake.