Crustal motion and block behaviour in SE-Asia from GPS measurements

Results acquired using global positioning system (GPS) data taken over a la rge part of SE-Asia, indicate that Sundaland, i.e. Indochina along with the western and central part of Indonesia, constitutes a stable tectonic block moving approximately east with respect to Eurasia at a velocity of 12 +/- 3 mm yr(-1). With respect to India and Australia this block moves due south . Significant motion has not been detected along the northern boundary to S outh China i.e. along the Red River Fault, whereas nearly 50 mm yr(-1) of r ight lateral motion has to be accommodated between India and Sundaland in t he Andaman-Burma region. (C) 2001 Elsevier Science B.V. All rights reserved .