at the Kerala and Tamil Nadu coasts reduced the impact of the waves. However, when the seawalls were made of loose stones, the stones were displaced and carried a few metres inland. Andaman and Nicobar Islands Due to close proximity to the earthquake, the tsunami took just minutes to devastate the Andaman and Nicobar Islands. The Andaman Islands were moderately affected while the island of Little Andaman and the Nicobar Islands were severely affected by the tsunami. In South Andaman island, based on local eyewitnesses, there were three tsunami waves, with the third being the most destructive. Flooding occurred at the coast and low-lying areas inland, which were connected to open sea through creeks. Inundation was observed, along the east coast of South Andaman Island, restricted to Chidiyatapu, Burmanallah, Kodiaghat, Beadnabad, Corbyn's cove and Marina Park/Aberdeen Jetty areas. Along the west coast, the inundation was observed around Guptapara, Manjeri, Wandoor, Collinpur and Tirur regions. Several near-shore establishments and numerous infrastructures such as seawalls and a 20 MW diesel-generated power plant at Bamboo Flat were destroyed. At Port Blair, the water receded before the first wave, and the third wave was the tallest and caused the most damage. Results of the tsunami survey in South Andaman along Chiriyatapu, Corbyn's Cove and Wandoor beaches: in maximum tsunami height with a run-up of at Chiriyatapu Beach in maximum tsunami height and run-up at Corbyn's Cove Beach in maximum tsunami height and run-up of at Wandoor Beach Meanwhile, in the Little Andaman, tsunami waves impinged on the eastern shore about 25 to 30 minutes after the earthquake in a four-wave cycle of which the fourth tsunami was the most devastating with a wave height of about . The tsunami destroyed settlements at Hut Bay within a range of from the seashore. Run up level up to have been measured. In Malacca, located on the island of Car Nicobar, there were three tsunami waves. The sea was observed to rise suddenly before the onset of the first wave. The first wave came 5 minutes after the earthquake, preceded by a recession of the sea up to .. The second and third waves came in 10 minutes intervals after the first wave. The third wave was the strongest, with a maximum tsunami wave height of . Waves nearly three stories high devastated the Indian Air Force base, located just south of Malacca. The maximum tsunami wave