Radon/helium studies for earthquake prediction in N-W Himalaya

Virk, H. S. (1999) Radon/helium studies for earthquake prediction in N-W Himalaya. Il nuovo cimento C, 22 C (3-4). pp. 423-430. ISSN 1826-9885

ncc7945.pdf - Published Version

Download (116kB) | Preview
Official URL: http://www.sif.it/riviste/ncc/econtents/1999/022/0...


The great Himalayan orogenic belt is one of the most active intra-continental regions in the world where a dozen earthquakes exceeding 7.5M occurred in the past from 1897 through 1950. Radon monitoring started in the Kangra valley, Himachal Pradesh in 1989 under the Himalayan Seismicity Programme of the Goverment of India. Six stations were set up along the main boundary fault (MBF) of N-W Himalaya. Radon monitoring is carried out using three techniques, viz., track etch technique, emanometry and alpha-logger system in both soil-gas and groundwater. Radon anomalies are correlated with microseismic activity in the N-W Himalaya. The correlation index varies for different stations and there is no one-to-one correspondence between radon anomalies and seismic events. The Uttarkashi (Ms47.0) and Chamba earthquakes (Ms45.1) are postdicted using radon anomalies which occurred in soil-gas and groundwater, simultaneously. Currently, we are using multisensor probes for monitoring of radon and meteorological parameters simultaneously in the study area. Helium is being monitored along with radon at Palampur in soil-gas and in thermal springs in the Kullu and Parbati valleys of Himachal Pradesh. The He/Rn ratio will be used as a predictive tool for earthquakes.

Item Type: Article
Additional Information: Paper presented at the “Fourth International Conference on Rare Gas Geochemistry”, Rome, October 8-10, 1997.
Uncontrolled Keywords: Phenomena related to earthquake prediction; interactions between exterior sources and interior properties; conference proceedings
Subjects: 500 Scienze naturali e Matematica > 550 Scienze della Terra
Depositing User: Marina Spanti
Date Deposited: 10 Oct 2019 10:21
Last Modified: 10 Oct 2019 10:21
URI: http://eprints.bice.rm.cnr.it/id/eprint/13382

Actions (login required)

View Item View Item