A tsunami triggered by the 26 December 2004 Indian Ocean earthquake inundated Sri Lanka’s coast, producing catastrophic loss of life, injuries, and displacement, and destroying coastal housing and infrastructure.
The tsunami derailed and destroyed the Matara Express (Train No. 50) near Peraliya/Hikkaduwa, widely described as the deadliest rail disaster by death toll, underscoring the tsunami’s suddenness and the vulnerability of coastal transport corridors.
Post-tsunami planning introduced construction set-backs—commonly cited as 100 m on the south/west coasts and 200 m on the north/east coasts—shaping relocation, housing reconstruction, and disputes over livelihoods and land rights.
The IMF Executive Board approved SDR 103.35 million (about US$157.5 million) in emergency assistance to help Sri Lanka address tsunami impacts and early reconstruction needs, reflecting the scale of international financial support mobilized in 2005.
Household survey research among displaced populations found that almost all deaths occurred on the day of the tsunami or within three days, with little mortality reported after the first week in the studied camps—evidence that immediate rescue and early public-health measures were decisive.
Parliament enacted the Sri Lanka Disaster Management Act, No. 13 of 2005, establishing the legal basis for national disaster risk management institutions and planning—an important institutional reform accelerated by the tsunami experience.
Sri Lanka enacted the Tsunami (Special Provisions) Act, No. 16 of 2005, creating temporary legal mechanisms (including streamlined procedures related to missing persons and documentation) to address obstacles faced by tsunami-affected families.
The Sri Lankan Government and the LTTE signed a Memorandum of Understanding to create a Post-Tsunami Operational Management Structure (P-TOMS) intended to coordinate and allocate tsunami reconstruction assistance across affected areas, including conflict-affected regions.
Following the 2005 legislation, Sri Lanka’s Disaster Management Centre (DMC) was established and designated as the lead agency for disaster risk management, strengthening coordination for preparedness and response beyond tsunami recovery.
Sri Lanka eased/revised post-tsunami coastal building restrictions in late 2005 after concerns that the earlier set-backs were slowing housing and business recovery; the change became a major policy turning point in the reconstruction debate.
Sri Lanka established the Reconstruction and Development Agency (RADA) to manage and coordinate recovery and reconstruction efforts, consolidating post-tsunami programs under a dedicated institutional framework.
Post-tsunami recovery approaches emphasizing disaster-resistant housing and livelihoods—such as Practical Action’s reconstruction work—gained international visibility, reflecting an evolution toward “build back better” methods in parts of Sri Lanka’s recovery.
2004 Indian Ocean tsunami and Sri Lanka's recovery (2004-2010)
