EXTRAORDINARY HELIUM ANOMALY OVER SURFACE RUPTURE OF SEPTEMBER-1993 KILLARI EARTHQUAKE, INDIA

Authors
RAO GV REDDY GK RAO RUM GOPALAN K
Citation
Gv. Rao et al., EXTRAORDINARY HELIUM ANOMALY OVER SURFACE RUPTURE OF SEPTEMBER-1993 KILLARI EARTHQUAKE, INDIA, Current Science, 66(12), 1994, pp. 933-936
Citations number
14
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Current Science → ACNP
ISSN journal
00113891
Volume
66
Issue
12
Year of publication
1994
Pages
933 - 936
Database
ISI
SICI code
0011-3891(1994)66:12<933:EHAOSR>2.0.ZU;2-6
Abstract
An interesting helium field associated with the surface rupture of the September 1993 Killari earthquake has been discovered. Extensive soil -gas helium measurements over a 300 x 200 m area covering the rupture zone brought forth helium peaks, sharp and very high (reaching several tens of ppm as against 'regional' of 0.2 ppm), restricted to the feat ures marking the rupture. Measurements in the immediate vicinity showe d two helium 'spots' revealing concealed segments. The helium release is a clear signature of the faulting associated with the earthquake.