Probing Reservoir Triggered Earthquakes at Koyna, India through Scientific Deep Drilling
Project Acronym: KOYNA | State: Completed | Expedition ID: 5058
The Koyna Dam located close to the west coast of India is the most outstanding example of Reservoir Triggered Seismicity RTS.
Triggered earthquakes have been occurring in a restricted area of 20x30 sq km since the impoundment of Shivajisagar Lake in 1962. These include the largest triggered earthquake of M~6.3 on Dec 10 1967, 22 earthquakes of M>5, about 200 earthquakes of M~4, and several thousand smaller earthquakes since 1962. The earthquake frequency increases every year following the monsoon rains in the months of June and July; almost every year one or more M~4 earthquakes occur. There is no other source of seismic activity within 50 km of the Koyna Dam.
Keywords: Asia, India, Deep Borehole Observatory, Koyna, Reservoir-triggered Seismicity
Cores are stored at National Centre for Antarctic and Ocean Research, Goa, India.
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Project Management
Contact Person
Lead PIs
- Shailesh Nayak – National Institute of Advanced Studies
- Georg Dresen – GFZ Helmholtz Centre for Geosciences
- Sukanta Roy – Ministry of Earth Sciences
- Hans-Joachim Kuempel – Federal Institute for Geosciences and Natural Resources
- Serge Shapiro – Free University of Berlin
- William Ellsworth – Stanford University
- Marco Bohnhoff – GFZ Helmholtz Centre for Geosciences
CoPIs
Co-PIs: No data found
Project Details
Project Description
- Title:
- Probing Reservoir Triggered Earthquakes at Koyna, India through Scientific Deep Drilling (KOYNA)
- Proposed in:
- 2015
- Current State:
- Completed
- Proposal abstract:
- n.a.
- Geologic age:
- Paleogene
- Number of drillsites (drillholes):
- 1(1) 2017-Jun-11
- Drilled length:
- 3012 m
- Cored length:
- 51.59 m
- Core recovered, length:
- 51.6 m
- Core recovered length / Cored length:
- 100.0%
- Core recovered / Drilled length:
- 1.7%
- Expedition #
- 5058
- Location
- Asia, India, Koyna, India
- Coordinates
- 17.0000, 74.0000
- Status
- Completed
Project Location
Project Timeline
Post Drilling Workshop
14 - 16 October 2017 in Pune, India
Drilling
20 December 2016 - 11 June 2017
Full Proposal Approved
Workshop 2 Held
16 - 18 May 2014 in Koyna, India
Workshop Proposal 2 Approved
Workshop 1 Held
21 - 25 March 2011 in Koyna, India