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

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The 24th March, 1995 Chamba Earthquake (NW Himalaya), Field Observations and Seismotectonics


Affiliations
1 CRSSN, Wadia Institute of Himalayan Geology, Naddi, Dharamsala, India
     

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On 24th March, 1995 at 17:22 hr. IST (11:52 UTC) an earthquake of magnitude 4.9 mb (USGS) struck the Chamba region in northwest Himalaya. The epicentral zone lies 8-10 km northeast of Chamba township. Based on the isoseist characteristics, the source mechanism of this earthquake has been evaluated. The longest axis of the isoseismal is aligned in NW-SE direction, which is parallel to the trend of strike of rocks in the area. The pattern of isoseismals suggest that the causative fault for the 1995 Chamba earthquake is parallel to the local Himalayan trends and the strain has been released at a very shallow depth.

Keywords

Seismology, Earthquake, Chamba, Himalaya.
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  • The 24th March, 1995 Chamba Earthquake (NW Himalaya), Field Observations and Seismotectonics

Abstract Views: 232  |  PDF Views: 2

Authors

A. K. Mahajan
CRSSN, Wadia Institute of Himalayan Geology, Naddi, Dharamsala, India

Abstract


On 24th March, 1995 at 17:22 hr. IST (11:52 UTC) an earthquake of magnitude 4.9 mb (USGS) struck the Chamba region in northwest Himalaya. The epicentral zone lies 8-10 km northeast of Chamba township. Based on the isoseist characteristics, the source mechanism of this earthquake has been evaluated. The longest axis of the isoseismal is aligned in NW-SE direction, which is parallel to the trend of strike of rocks in the area. The pattern of isoseismals suggest that the causative fault for the 1995 Chamba earthquake is parallel to the local Himalayan trends and the strain has been released at a very shallow depth.

Keywords


Seismology, Earthquake, Chamba, Himalaya.