The ocean sustains life, supports economies and connects civilisations. Yet beneath its seemingly peaceful surface lies the potential for unimaginable destruction. A tsunami can transform a tranquil coastline into a scene of devastation within minutes. Recognising this danger, the UN observes World Tsunami Awareness (WTA) Day on 5 November each year to promote scientific understanding, disaster preparedness and international cooperation.
Tsunamis are generally triggered by powerful underwater earthquakes, although volcanic eruptions and submarine landslides can also generate them. These enormous waves travel across oceans at extraordinary speeds, becoming increasingly dangerous as they approach shallow coastal waters. The Indian Ocean tsunami of December 2004, which claimed approximately 230,000 lives, remains a tragic reminder of humanity’s vulnerability to natural disasters.
Pakistan is not immune to this threat. Its Arabian Sea coastline lies near the Makran Subduction Zone, where tectonic movements can produce powerful earthquakes and destructive tsunamis. On 28 November 1945, a major earthquake generated a tsunami that devastated coastal settlements, particularly in Balochistan. With increasing population, commercial activity and infrastructure along the coast, including Karachi and Gwadar, the importance of preparedness cannot be overstated.
Modern science offers remarkable opportunities to minimise casualties through seismic monitoring, early-warning systems and effective evacuation planning. However, technology alone cannot guarantee safety. Coastal communities must recognise natural warning signs, including strong or prolonged earthquakes and unusual withdrawal of seawater. Public education, regular evacuation drills and clearly marked escape routes can make the difference between survival and tragedy.
For Pakistan, tsunami awareness should become an essential component of disaster management, particularly in schools, universities and vulnerable coastal communities. Scientific institutions, government agencies and local authorities must cooperate to translate knowledge into practical protection.
WTA Day reminds us that natural hazards are inevitable, but human catastrophes need not be. Preparedness reflects not only technological advancement but also society’s commitment to protecting human life. Investment in awareness today can prevent irreversible losses tomorrow.
Dr Intikhab Ulfat
Karachi
