[KOYNA] KOYNA - Probing Reservoir Triggered Earthquakes at Koyna, India through Scientific Deep Drilling
ICDP-Topics:
Climate & Ecosystems
Natural Hazards
Faults
Year of Application: 2015
Expedition ID: 5058
Current Status: ongoing
Master Data
Prof. Dr. Serge A. Shapiro (PI)
Prof. Dr. Marco Bohnhoff (PI)
Prof. Dr. Hans-Joachim Kümpel (PI)
Prof. Dr. Georg Dresen (PI)
Dr. Thomas Wiersberg (OSG)
Ronald Conze (OSG)
Dr. Ulrich Harms (OSG)
Jochem Kück (OSG)
Prof. Dr. Roland Oberhänsli (Scientific Participant)
Prof. Dr. Ernst Huenges (Scientific Participant)
Prof. Dr. Jochen Zschau (Scientific Participant)
Dr. Anja Maria Schleicher (Scientific Participant)
Dr. Axel Liebscher (Scientific Participant)
Projektstart: 15 September, 2015
Projektdauer: 24
Geologisches
Alter: paleogene
Latitude: 17°24'6''N
Kontinente:
Regionen & Städte:
Longitude: 73°45'6''E
Länder:
Themen:
Description
The Koyna Dam located close to the west coast of India is the most outstanding example of Reservoir Triggered Seismicity RTS, where 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.