Effect of the M 9.3 Sumatra–Andaman islands earthquake of 26 December 2004 at several permanent and campaign GPS stations in the Indian continent
IR@C-MMACS: CSIR-Centre for Mathematical Modelling and Computer Simulation, Bangalore
View Archive Info| Field | Value | |
| Title |
Effect of the M 9.3 Sumatra–Andaman islands earthquake of
26 December 2004 at several permanent and campaign GPS stations in
the Indian continent
|
|
| Creator |
Jade, Sridevi
M S M, Vijayan P, Dileep Kumar V K, Gaur |
|
| Subject |
GNSS/GPS Geodesy
|
|
| Description |
The effect of the 26 December 2004 Sumatra–Andaman earthquake on the
Indian continent has been estimated from the analysis of GPS data from
permanent and campaign GPS sites in the Indian continent. Co-seismic
displacements at these sites have been determined for 11 permanent GPS
stations of the national network, five campaign sites in southern India, and four
campaign sites in Andaman and Nicobar Islands. The results indicate co-seismic
eastward displacements of 12–20mm in southern India almost directly west of
Andaman, 1.8–6mm in Central India and insignificant displacement in the
Himalayas. Permanent sites in north-east India which lie almost towards the
northward extension of the rupture plane show smaller co-seismic displacements
ranging from 5 to 10mm southward. Four campaign sites in the Andaman and
Nicobar Islands show large horizontal co-seismic displacements of 1.6–6.49m
WSW and SW. Vertical displacement varies from an uplift of 0.6m in north
Andaman to 1.1m subsidence at Car Nicobar. The observed GPS displacements
are modelled using coulomb 2.6, and the slip on the four segments of the rupture
plane (450km6175 km; 250km6140 km; 250km6100 km; 150km6100 km)
that best fits both the far and near field displacements is estimated to be
predominantly 12m reverse in the southernmost segment, which slowly translates
to an oblique slip of 7m in the northernmost segment of the rupture plane. The
seismic moment of the Sumatra–Andaman earthquake for the above rupture
plane and slip isMo55.2161022 Nm, which corresponds to a moment magnitude
of Mw59.1.
|
|
| Publisher |
Taylor & Francis
|
|
| Date |
2007-07
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cir.cmmacs.ernet.in/134/1/Effect_of_M9sumatra_earthquake.pdf
Jade, Sridevi and M S M, Vijayan and P, Dileep Kumar and V K, Gaur (2007) Effect of the M 9.3 Sumatra–Andaman islands earthquake of 26 December 2004 at several permanent and campaign GPS stations in the Indian continent. International Journal of Remote Sensing, 28 (13-14). pp. 3045-3054. ISSN 0143-1161 |
|
| Relation |
http://www.tandf.co.uk/journals
http://cir.cmmacs.ernet.in/134/ |
|