NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.37 [2008] >
IJMS Vol.37(4) [December 2008] >

Title: Continuous monitoring of seismicity by Indian permanent seismological observatory at Maitri
Authors: Malaimani, E.C
Kumar, N. Ravi
Padhy, Simanchal
Rao, S.V.R.R.
Chander, G.B. Navin
Srinivas, G.S.
Akilan, A.
Keywords: Digital Broad Band Seismometer
local seismicity
Mid-oceanic ridges
Issue Date: Dec-2008
Publisher: CSIR
Abstract: Maitri, Antarctica Seismological observatory has gone global by becoming one of the permanent stations in Antarctic Seismic Web Resource (AnSWeR). The global seismic events recorded at Maitri since inception show an increasing trend of seismic activity in and around Antarctica specifically in the larger oceanic part of the Indian Plate. Some significant observations made during the XXI, XXII and XXIII Indian Antarctic Expeditions (IAE) are presented here as representative observations. The MOHO (Mohorovicic Discontinuity or often simply referred to as the "Moho") depth (an average depth of 8 kilometers beneath the ocean basin and at an average depth of about 32 kilometers beneath the continents at which seismic waves change velocity) beneath Maitri has also been estimated to be 40 km using receiver function analysis with 67 receiver functions and 108 events. The increasing seismic activity in and around Antarctica and along the oceanic ridges in the Indian Ocean confirm the emerging deforming zone in the Indian Ocean between India and Antarctica. This increased seismic activity in this region gives an insight into the spreading rates of the ridges and reorganization of plate boundaries.
Page(s): 396-403
ISSN: 0379-5136
Source:IJMS Vol.37(4) [December 2008]

Files in This Item:

File Description SizeFormat
IJMS 37(4) 396-403.pdf596.5 kBAdobe PDFView/Open
 Current Page Visits: 84 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 165409 since 01-Sep-2015  Last updated on 27-Jun-2016Webmaster: