Features
Tsunami and the task of educating the public
by Prof. O. A.Ileperuma
Your editorial of December 27, 2022 highlights some stark truths about the lack of efforts to educate the general public, particularly schoolchildren, on tsunamis. Authorities have to take effective action on future tsunamis hitting our shores and the major task here is to educate the general public on how to recognise a tsunami and what actions should be taken during a tsunami. The general features and the warning signs of a tsunami are a change in the tidal wave pattern where there is extensive frothing of waves hitting the shore, receding of the sea away from the land exposing fish and corals, roaring noise in the sea and the appearance of murky waters.
During the 2004 tsunami, 35,000 lives were lost and 430 schools damaged when severe waves of sea water gushed inland. Most of these lives could have been saved had we been educated enough to deal with a tsunami. During this tsunami, when the waves receded exposing the sea bottom, some people even went to the extent of grabbing the exposed land by erecting poles to demarcate their plots and when the big wave came all these people perished. This shows the poor level of education we have about tsunamis.
In contrast, Tilly Smith, a 10-year-girl from England who was at the Phuket beach in Thailand on holidays saved lives of over 100 tourists at the beach by warning them minutes before the arrival of the big wave. She was honoured by the UN and many other maritime organisations for her heroic act. When she noticed the sea receding, she immediately remembered the geography lesson she took a few weeks before and warned her parents about the impending arrival of the big wave. Even her parents were reluctant to take her advice at first but her persistence made them run to safer grounds. This was the only beach in Thailand where there were no casualties. We teach environmental science from year 1 onwards and I wonder whether the curriculum contains even a single word on tsunami. Even our undergraduates studying geography and geology or even their lecturers seem to be unaware of the characteristics of a tsunami as it became evident during discussions following the aftermath of the 2004 tsunami. Even Navy personnel in Trincomalee, where the tsunami first hit, appeared ignorant and could not identify the tsunami of 2004. Navy ships in the deep waters too did not notice or report any unusual behaviour of the ocean clearly showing that the training they have received did not include sufficient information on tsunamis. The 2004 tsunami took at least 30 minutes to travel down to areas such as Galle and had a proper warning given by the authorities in Trincomalee, a lot of lives could have been saved.
In the deep ocean, tsunami waves are inconspicuous, even though they travel at very high speeds between 500 to 1,000 km/hr. It is only when they approach the shore that they become catastrophic, reaching heights of 10 metres or more. Unlike waves generated by wind which have a period of seconds, tsunami waves in the deep ocean have a period in the order of hours. Tsunami wave crests can be as much as 650 kilometres long with a height of only 3 centimetres. Movement of water is more like a water column or block rather than a wave. Because of this feature, ships and boats in deep waters do not feel the impact of tsunami waves other than a lifting of their vessels by a few metres. This is the reason why there was not much damage to those fishing vessels in deep waters during the 2004 tsunami.
We were not at all prepared for a tsunami in 2004. The Pacific Tsunami Warning Centre based in Hawaii tried desperately to reach authorities in Sri Lanka to warn about the impending tsunami but there was no one to answer the phone because it was the day after Christmas and people were on holidays. Even those who responded did not see the gravity of this massive earthquake. Even an official of the Geological Survey and Mines Bureau claimed in a newspaper interview that they received the warning of an earthquake but did not know whether it can cause a tsunami. This again shows the lack of knowledge about tsunamis even among the professionals in this field. What better can be expected out of ordinary morsels? It is a pathetic state of affairs to see that when a massive earthquake having an energy equivalent of around 20,000 Hiroshima type atomic bombs takes place our geologists were totally ignorant of its repurcussions. This was true with other countries in the region where the response was disorganised and lethargic. Others either did not know how to interpret the warning signs, or were indifferent to them. None of the countries surrounding the Bay of Bengal issued an official warning, leaving millions of people completely at the mercy of the approaching waves.
After the 2004 tsunami, international funding organisations have supported the establishment of seismic sensors or tsunami detection buoys to detect earthquakes and tsunamis in the Indian Ocean. A typical tsunami buoy system has a pressure sensor anchored to the sea floor and a surface buoy. The sensor on the sea floor measures the change in height of the water column above by measuring associated changes in the water pressure. This water column height is communicated to the surface buoy by acoustic telemetry and then relayed via satellite to the tsunami warning centres. These buoys in the Indian ocean are controlled by India, Australia and Thailand and the data are directed to their respective meteorological stations. The National Disaster Management Centre (NDM) was established in 2005 to specifically to deal with various disasters including tsunamis and I hope that they have a 24 hour communication link with all the relevant international organisations to obtain up-to-date information on impending disasters.
Educating people about these tsunami signs including introducing these into our education curriculum is long overdue. People living near the coast who are the most vulnerable should receive priority. We should be better prepared when the next tsunami strikes. If any of these signs of a tsunami are observed, people should immediately move away from the area to a distance of at least one kilometre inland or go into a firmly constructed building climbing up to a height of at least 100 feet above the sea level.
The root cause of all problems affecting the future of mankind is the increase in world population far beyond the sustainable levels. World population reached 8 billion this year and this is about twice the number proposed by scientists as the desirable level for the number of humans inhabiting the earth. Increased fossil fuel combustion generating carbon dioxide and other greenhouse gases result in global warming and climate change. Scientists believe that global warming causes not only climate change but also geological changes causing earthquakes and volcanic eruptions. Several factors cause the creation of a tsunami waves: earthquakes, volcanoes, landslides are some of the reasons and major tsunamis are caused by earthquakes. Global warming is believed to raise the sea level by about half a metre by the year 2030 and this can increase the severity of a tsunami. Earth is supported by tectonic plates and Indonesia is at the junction of three major tectonic plates and these are the Indo-Australian, Eurasian and Pacific plates. Over 80% of the earthquakes in the world happen around the Indonesian islands. Polar ice cap melting due to global warming increases the amount of water in the oceans where it increases the pressure on these plates. It is the movement of plates past each other which brings about earthquakes and the frequency of these movements has increased over the past decade and major ones such as the one in 2004 with a strength of 9.1 on the Richter scale may happen anytime and these can definitely affect countries such as Sri Lanka. Therefore, adequate safety measures and educating all sectors of the public and school children is crucial to prevent a repetition of what happened in 2004.
Features
Fractious West facing a more solidified Eastern opposition
Going forward, it is hoped that a reported ceasefire agreement between the US and Iran would provide a basis for a degree of stability in the Middle East and pave the way for substantive peace talks between the powers concerned. The world is compelled to fall back on hope because there is never knowing when President Donald Trump would change his mind and plans on matters of the first importance. So erratic has he been.
Yet, confusion abounds on who has agreed to what. The US President is on record that a number of conditions put forward by him to Iran to deescalate tensions have been accepted by the latter, whereas Iran is yet to state unambiguously that this is so. For instance, the US side claims that Iran has come clear on the point that it would not work towards acquiring a nuclear weapons capability, but there is no official confirmation by Iran that this is so. The same goes for the rest of the conditions.
Accordingly, the peace process between the US and Iran, if such a thing solidly exists, could be said to be mired in uncertainty. Nevertheless, the wider publics of the world are bound to welcome the prospects of some sort of ceasing of hostilities because it would have the effect of improving their economic and material well being which is today under a cloud.
However, questions of the first magnitude would continue to bedevil international politics and provide the breeding ground for continued tensions between East and West. Iran-US hostilities helped highlight some of these divisive issues and a deescalation of these tensions would not inevitably translate into even a temporary resolution of these questions. The world community would have no choice but to take them up and work towards comprehending them better and managing them more effectively.
For example, there are thorny questions arising from the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). Essentially, this treaty bans the processing and use of nuclear weapons by states but some of the foremost powers are not signatories to it.
Moreover, the NPT does not provide for the destroying of nuclear arsenals by those signatory states which are already in possession of these WMDs. Consequently, there would be a glaring power imbalance between the latter nuclear-armed states and others which possess only conventional weapons.
Such a situation has grave implications for Iran’s security, for instance. The latter could argue, in view of the NPT restrictions, that the US poses a security threat to it but that it is debarred by the Treaty from developing a nuclear arms capability of its own to enable it to match the nuclear capability of the US. Moreover, its regional rival Israel is believed to possess a nuclear weapons capability.
Accordingly, a case could be made that the NPT is inherently unfair. The US would need to help resolve this vexatious matter going forward. But if it remains, US-Iran tensions would not prove easy to resolve. The same goes for Iran-Israeli tensions. Consequently, the Middle East would remain the proverbial ‘powder keg’.
Besides the above issues, the world has ample evidence that it could no longer speak in terms of a united NATO or West. Apparently, there could be no guarantee that US-NATO relations would remain untroubled in future, even if the current Iran-US standoff is peacefully resolved. US-NATO ties almost reached breaking point in the current crisis when the US President called on its NATO partners, particularly Britain, to help keep open the Hormuz Straits for easy navigation by commercial vessels, militarily, on seeing that such help was not forthcoming. Such questions are bound to remain sore points in intra-Western ties.
In other words, it would be imperative for the US’ NATO partners to help pull the US’ ‘chestnuts out of the fire’ going ahead. The question is, would NATO be willing to thus toe the US line even at the cost of its best interests.
For the West, these fractious issues are coming to the fore at a most unpropitious moment. The reality that could faze the West at present is the strong opposition shown to its efforts to bolster its power and influence by China and Russia. Right through the present crisis, the latter have stood by Iran, materially and morally. For instance, the most recent Security Council resolution spearheaded by the US which was strongly critical of Iran, was vetoed by China and Russia.
Accordingly, we have in the latter developments some marked polarities in international politics that could stand in the way of the West advancing its interests unchallenged. They point to progressively intensifying East-West tensions in international relations in the absence of consensuality.
It is only to be expected that given the substance of international politics that the West would be opposed by the East, read China and Russia, in any of the former’s efforts to advance its self interests unilaterally in ways that could be seen as illegitimate, but what is sorely needed at present is consensuality among the foremost powers if the world is to be ‘a less dangerous place to live in.’ Minus a focus on the latter, it would be a ‘no-win’ situation for all concerned.
It would be central to world stability for International Law to be upheld by all states and international actors. Military intervention by major powers in the internal affairs of other countries remains a principal cause of international mayhem. Both East and West are obliged to abide scrupulously with this principle.
From the latter viewpoint, not only did the West err in recent times, but the East did so as well. Iran, for instance, acted in gross violation of International Law when it attacked neighbouring Gulf states which are seen as US allies. Neither Iran nor the US-Israel combine have helped in advancing international law and order by thus taking the law into their own hands.
Unfortunately, the UN has been a passive spectator to these disruptive developments. It needs to play a more robust role in promoting world peace and in furthering consensual understanding among the principal powers in particular. The need is also urgent to advance UN reform and render the UN a vital instrument in furthering world peace. The East and West need to think alike and quickly on this urgent undertaking.
Features
Science-driven health policies key to tackling emerging challenges — UNFPA
Marking World Health Day on April 7, health experts have called for a stronger commitment to science-based decision-making to address increasingly complex and evolving health challenges in Sri Lanka and beyond.
Dr. Dayanath Ranatunga, Assistant Representative of the United Nations Population Fund, stressed that health is no longer confined to hospitals or traditional medical systems, but is shaped by a broad spectrum of social, environmental, and technological factors.
“This year’s theme, ‘Together for Health. Stand with Science,’ reminds us that science is not only for laboratories or policymakers. It is a way of thinking and a tool that shapes everyday decisions,” he said.
Dr. Ranatunga noted that modern health challenges are increasingly interconnected, ranging from infectious diseases such as COVID-19 to climate-related risks, demographic shifts, and emerging forms of online violence.
He warned that maternal and newborn health continues to demand urgent attention despite progress. Globally, an estimated 260,000 women died from pregnancy and childbirth-related causes in 2023 alone—many of them preventable through timely, science-based interventions.
“In countries like Sri Lanka, where fertility rates are declining and survival rates improving, every pregnancy carries greater significance—not just for families, but for the future of communities and economies,” he said.
The UNFPA official also highlighted the growing threat of Technology Facilitated Gender-Based Violence (TFGBV), including cyber harassment and online abuse, noting that these forms of violence can have deep psychological consequences despite lacking visible physical harm.
He emphasised the need for multidisciplinary, science-informed approaches that integrate mental health, digital safety, and survivor-centered care.
Turning to demographic trends, Dr. Ranatunga pointed out that increasing life expectancy is bringing new challenges, particularly the rise of non-communicable diseases such as diabetes, cardiovascular illnesses, and cancers.
In Sri Lanka, nearly 13.9% of mothers develop diabetes during pregnancy, a trend attributed to obesity and unhealthy lifestyles, underscoring the urgent need for preventive healthcare strategies.
“Are we investing enough in prevention?” he asked, noting that early intervention and healthier lifestyles could significantly reduce long-term healthcare costs, especially in a country with a free public healthcare system.
He underscored the importance of data-driven policymaking, stating that scientific research and analytics enable governments to identify gaps, anticipate future needs, and allocate resources more effectively.
The UNFPA, he said, is already leveraging tools such as Geographic Information Systems (GIS) to improve access to maternal healthcare, including mapping travel times for pregnant women to reach health facilities.
Digital innovation is also transforming healthcare delivery, from telemedicine to real-time data systems, improving efficiency and ensuring continuity of care even during emergencies.
In Sri Lanka, partnerships between the government and development agencies are helping to modernise training institutions, including facilities in Batticaloa, equipping healthcare workers with both clinical and digital skills.
However, Dr. Ranatunga cautioned that technology alone is not a solution.
“It must be guided by evidence and grounded in equity,” he said, pointing out that women’s health remains significantly underfunded, with only about 7% of global healthcare research focusing on conditions specific to women.
He also drew attention to the growing health impacts of climate change, including extreme weather, food insecurity, and displacement, describing it as an emerging public health crisis.
“Health does not begin in hospitals. It is shaped by the environments we live in, the choices we make, and the systems we build,” he said.
Calling for renewed commitment, Dr. Ranatunga urged stakeholders to invest in prevention, embrace innovation, and ensure that science remains central to policy and practice.
“Science is not just about knowledge—it is about ensuring that everyone has the opportunity to live healthy, dignified lives, and that no one is left behind,” he added.
By Ifham Nizam
Features
Sharing the festive joy with ‘Awurudu Kaale’
Melantha Perera is well known as a very versatile musician.
He was involved with the band Mirage, as their keyboardist/vocalist, and was also seen in action with other outfits, as well, before embarking on a trip to Australia, as a solo artiste.
I now hear that he has plans to operate as a trio.
However, what has got many talking about Melantha, these days, is his awesome work with the visually impaired Bright Light Band.
They have worked out a special song for the Sinhala and Tamil New Year, aptly titled ‘Awurudu Kaale.’
Says Melantha: “This song has been created to celebrate the spirit of the Sinhala and Tamil New Year and to share the joy of the Awurudu season with all Sri Lankans”.
Yes, of course, Melantha composed the song, with the lyrics written collaboratively by Melantha, Badra, and the parents of the talented performers, whose creative input brought the song to life during moments of inspiration.

Melantha Perera: Awesome work with Bright Light Band
This meaningful collaboration reflects the strong community behind the Bright Light Band.
According to Melantha, accompaning the song is a vibrant video production that also features the involvement of the parents, highlighting unity, joy, and togetherness.
Beyond showcasing their musical talents, the visually impaired members of Bright Light Band deliver a powerful message, through this project, that their abilities extend beyond singing, as they also express themselves through movement and dance.
Melantha expressed his satisfaction with the outcome of the project and looks forward to sharing it with audiences across the country during this festive season.
He went on to say that Bright Light Band extends its sincere gratitude to Bcert Australia for their generous Mian sponsorship, the CEO of the company, Samath Fernando, for his continuous support in making such initiatives possible, and Rukshan Perera for his personal support and encouragement in bringing this project to completion.
The band also acknowledges Udara Fernando for his invaluable contribution, generously providing studio space and accommodating extended recording sessions to suit the children’s availability.
Appreciation is warmly extended to the parents, whose unwavering commitment from ensuring attendance at rehearsals to supporting the video production has been instrumental in the success of this project.
Through ‘Awurudu Kaale’, Bright Light Band hopes to spread festive cheer and inspire audiences, proving that passion and talent know no boundaries.
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