July 07, 2022
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    Saving the world from Tsunamis

    December 26, 2019

    Saving the world from Tsunamis
    Pramod De Silva
    The train caught in giant tsunami wave in Peraliya on December 26, 2004.
    The train caught in giant tsunami wave in Peraliya on December 26, 2004.
    Today marks the 15th anniversary of the Boxing Day Tsunami in 2004 in the Indian Ocean which killed nearly 240,000 people in Asia and Africa. It is an ever-present danger, as Indonesia learned just a couple of days ago and yes, they can strike without any warning.

    Just what is a tsunami? Tsunami is a Japanese word comprising the words “tsu” (meaning harbour) and “nami” (meaning wave). It is not surprising that this word has originated in Japan, considering the frequency of tsunamis there.

    A tsunami is a series of enormous waves created by an underwater disturbance usually associated with earthquakes occurring below or near the ocean. Volcanic eruptions (like the one in Indonesia caused by “son of Krakatoa”), submarine landslides, and coastal rock falls can also generate a tsunami, as can a large asteroid impacting the ocean. They originate from a vertical movement of the sea floor with the consequent displacement of water mass. Tsunami waves often look like walls of water and can attack the shoreline and be dangerous for hours, with waves coming every 5 to 60 minutes. The first wave may not be the largest, and often it is the 2nd, 3rd, 4th or even later waves that are the biggest.

    “Be Peaceful and Useful”

    Daya Dissanayake

    “Be Peaceful and Useful” were the four words used by Ajhan Buddhadasa to define Buddha Dhamma. If we can follow this philosophy then we can all be prepared to face any disaster, natural or man-made, from prevention, to recovery.

    Nothing is permanent, either natural or man-made. Once we accept this fact, it is easier to face any danger, disaster, calamity. There is always an effect, from every cause, and sometimes we are not aware of the cause or we ignore it, and thus we are not prepared to face the effect. However, we have the intelligence, strength and the backing of the latest technologies to face any disaster.

    What we need is to be together, as one people, in our village, suburb, town, city and our country. We are all human beings, children of our Motherland and so we can face any situation as one group. That is where we need to be Peaceful towards all life.

    Early warnings

    There is so much we can learn from the way we faced the tsunami which devastated a part of our country. Early warnings are readily available now. We have such advanced communications, not only by radio and television, but by our mobile phones, which reach every nook and corner of the country. What is important is to ensure that the warnings are as accurate as possible, and the ability of the authorities to monitor such warnings to ensure their accuracy and how they are presented to the people, without creating unnecessary panic. It is the responsibility of all of us to take any such warnings seriously and to ensure that the message is shared with others who may not have received it, or are not taking any action.

    The next step should be to heed the advice of the authorities regarding the safety precautions we should take. A tsunami or a cyclone warning should give us sufficient time to escape to a safer location. It may not be possible to give such advance warnings about floods or landslides, but the general warnings should make us alert. At such times we should be able to decide what we value most, our lives or our valuables, material things and property. We should be able to escape with our lives first. All that we leave at home should be there when we return, or at least some of it. We can always recover and rebuild our lives. We can also help each other, share what we have, as one family, after any disaster.

    This is where we need to be honest, and we could expect all our neighbours to be honest. If we are together, and vigilant, there would be no opportunities for inhuman criminals to loot and vandalise our lives and property. Our vigilance also would ensure that all assistance and aid offered after a disaster are distributed fairly and are not abused, misappropriated or wasted. We need to be alert, because there could always be a few anti-social elements among us.

    During any danger or disaster, we need to be Helpful. We need to be totally unselfish in trying to help all the others around us, the weak, sick and the feeble, children and the elders. We should see them all as members of our extended family, our grandparents, parents, uncles and aunts, siblings and cousins, and children. It is our responsibility, duty and obligation to care for all of them.

    Disaster preparedness

    A good example of disaster preparedness was seen in Odisha in 2013. The state machinery, armed forces and social organisations managed a massive evacuation of over one million people, from the expected landfall areas. Only about 23 people died in the disaster, because they learned from the 1999 disaster where over 10,000 people died. It just shows the urgency of informing the people in advance, convincing them of the need to move away, and the acceptance by the people of the message and instructions. This requires a high level of confidence among the people and the authorities, which cannot be forced upon them.

    While we prepare to face disasters, we should also have to take long term measures to prevent some of them. Though a tsunami and a cyclone cannot be prevented, floods, landslides, forest fires and epidemics could be prevented or controlled to some extent. We as a society, as people responsible for causing such disasters, or contributing towards them, we should take more serious steps to listen to our conscience, and to the professional advice of those who are studying such disasters.

    Unauthorised filling up of low lying lands, clogging up drains, canals and even rivers with non-degradable garbage are some of the major reasons for flooding. Deforestation, clearing up mountain ranges, illegal mining are major causes for landslides. We cannot blame nature for these disasters, and we cannot blame the authorities for causing them. We have to blame ourselves.

    Nature is more powerful than all our intelligence, technology and determination. Once we accept this fact, we are able to respect the natural forces, and instead of fighting against these forces, try to accept the inevitable, the powers of nature and natural laws. We have to live in harmony with nature, not fight against it or consider nature as our rival. We are only a minor element in the ecosystem. By trying to interfere with the system or trying to defy it, we only bring more disaster and destruction on ourselves.

    The ultimate aim of disaster management is to save lives, preserve the environment, protect property and the economy of our country. We cannot dissociate ourselves from the functions of prevention, mitigation, preparedness, response and recovery, expecting the state machinery and authorities to handle everything. We have a responsibility, to our families, our neighbours, our country and our future generations to make our maximum contribution for disaster prevention and management. We should not limit ourselves to discuss these issues once a year, we need to be vigilant and take whatever action we could, throughout the year. Be Responsible, be Peaceful and be Useful.

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    Tsunamis are rare events, but can be extremely deadly. In the past 100 years, 58 tsunamis have claimed more than 260,000 lives, or an average of 4,600 per disaster, surpassing any other natural hazard. The highest number of deaths in that period was in the Indian Ocean tsunami of December 26, 2004. Hence the name Boxing Day Tsunami. It caused fatalities in 14 countries, with Indonesia, Sri Lanka, India and Thailand hardest-hit. Just a few months ago, a tsunami in Sulawesi, Indonesia took over 1,200 lives. Japan most recently experienced a major tsunami in March 2011, which killed nearly 16,000 people, with around 2,500 still missing.

    Disaster risk reduction

    Just three weeks after the Boxing Day Tsunami, the international community came together in Kobe, in Japan’s Hyogo region. Governments around the world adopted the 10-year Hyogo Framework for Action, the first comprehensive global agreement on disaster risk reduction.

    They also created the Indian Ocean Tsunami warning and Mitigation System which boasts scores of seismographic and sea-level monitoring stations and disseminates alerts to national tsunami information centres. Rapid urbanization and growing tourism in tsunami-prone regions are putting ever-more people in harm’s way. That makes the reduction of risk a key factor if the world is to achieve substantial reductions in disaster mortality – a primary goal of the Sendai Framework, the 15-year international agreement adopted in March 2015 to succeed the Hyogo Framework.

    Today, the very word tsunami sends a shiver down our spines, although most people did not even know the word until December 2004. Thus we are generally aware of what a tsunami can do. This is why whenever we hear of an earthquake in Indonesia or a nearby country, we immediately think of a tsunami and try to take precautions such as reaching higher ground. In fact, there were a couple of tsunami alerts in Sri Lanka after 2004 which sent everyone in coastal areas scampering for safer ground. However, the most recent tsunami in Indonesia came without warning and most Lankans knew about it only when they woke up and listened to the news.

    In retrospect, there is enough awareness about tsunamis now. People generally know what to do and how to behave in an impending tsunami situation without even being told. What has not been really tested is our state of readiness, including the functionality of the tsunami alert system.

    Although several drills have been held from time to time, we do not know how the systems will behave collectively in a real-life tsunami crisis. For example, will a tsunami alert text message be delivered to 21 million phones in a matter of minutes?

    Glaring deficiencies in this respect were exposed during the recent tsunami in Sulawesi, Indonesia as sections of the alert mechanism were found to be non-functioning. A tsunami warning was sent out by Indonesia’s meteorological and geophysics agency BMKG - lasting just over 30 minutes - but it appears to have drastically underestimated the scale of the tsunami that would follow.

    There seems to have been a combination of rather unfortunate factors at play here.

    There are fears that though the alert was sent out, and according to the communications ministry, repeated tsunami warnings were sent to residents via text message - they might not have been received. This is a lesson that Sri Lankan authorities must also look at. Sending a text to 20 million phones may not be as simple as it sounds – a spokesman for BMKG said the quake had brought down the area’s power and communications lines and that there were no sirens along the coast, which might have rendered the alerts essentially useless even if received.

    Early warning system

    Another factor is that critical components of the expensive early warning system may have not been working properly due to natural damage and even vandalism. The third factor, which is common to most developing countries, is the lack of a maintenance budget for systems such as these. Sri Lankan authorities must urgently assess the operational capability and readiness of the early warning system. Any Budgetary constraints must be immediately addressed regardless of the costs involved since the latest disaster has highlighted the costs of not having implemented a more sophisticated early warning system.

    The Indian Ocean countries and Japan must thus intensify research on earthquakes and tsunamis and collaborate more closely with well-known bodies such as the US Geological Survey (USGS).

    We must also be wary of Climate Change which can cause low-lying cities to go underwater. There will be a greater threat of landslide tsunamis as some of melting glacial mountains can topple into the sea, generating massive tsunamis. With a wave run-up of nearly 200 metres, the tsunami that ripped through an Alaskan fjord in 2015 was one of the largest ever documented. But with no-one killed, it almost went unnoticed. It was triggered by a massive rockfall caused by melting of the Tyndall Glacier, which experts say has given them the clearest picture to date of a landslide generated tsunami. Accurate earthquake prediction remains the Holy Grail of scientists. Forecasting an earthquake’s approximate date assumes earthquakes follow some kind of pattern — that faults release pressure in a predictable way. But this does not always happen. Unlike us, animals seem to be having a “sixth sense” that can give them an indication of an impending disaster, well before any of our advanced gadgets. In fact, no animals perished in the 2004 tsunami except those who were tied or caged.

    Humans have lost this sense in the course of evolution, so we have to rely on technology instead. There is even talk of using Artificial Intelligence, somewhat akin to the animals’ sixth sense, to predict earthquakes at least a few minutes in advance. We hope these efforts succeed, because that would mean more lives can be saved.

    Tsunamis are unpredictable, but armed with more knowledge and better warning systems, we will be able to minimize any loss of life and property if and when a major tsunami strikes.

    Are we prepared for another such event? It is very difficult to get shattered lives back on track – what do you say to a little girl who had lost her entire family to the raging waves? To parents who lost all their children? While tsunami affected people can be provided with jobs and housing, there will always be those who cannot come to terms with their loss.There must be a mechanism to deal with this kind of psychological emergency. The response to a tsunami should be multifaceted and swift. But let’s hope that we never have to face a tsunami again.



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