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How to Survive a Mega-Tsunami?

February 27, 2010

The Philippines is now on alert level 1 after the Philippine Institute of Volcanology and Seismology (Phivolcs) spotted

Tsunami prone areas of the country...

Tsunami prone areas of the country...

approaching waves of tsunami scheduled to hit coastal areas of the country at 1:00 to 2:30 in the afternoon today (Sunday). Tsunami is an effect of various causes like a massive earthquake. Various media reports said that the 8.8-magnitude earthquake that hit Chile on Saturday generated a cross-Pacific waves of tsunami.

A Yahoo News report says that people in Hawaii were urgently told to protect lives and property from a tsunami crossing the Pacific as fast as a jetliner after a devastating earthquake in Chile.

Tsunami waves were likely to hit Asian, Australian and New Zealand shores within 24 hours of the earthquake, which struck early Saturday on Chile’s coast, the report says.

The Philippines, which is located in the Pacific ring of fire, is among the coastal countries to be hit by tsunami. So how can we survive a tsunami?

Let me share with you a very helpful tsunami survival steps from Here are the ways to survive a tsunami:

FIRST STEP: Learn about the potential for danger in advance. It is important to consider in advance whether or not you live somewhere that could potentially face a tsunami. It is likely that you are at some risk if:

  • Your home, school, or workplace is in a coastal region, near the sea.
  • The elevation of your home, school or workplace is at sea level or fairly low and on flat or only slightly undulating land. If you don’t know the elevation level of your home, school or workplace, find out. Some local authorities use elevation as a warning indicator.
  • There are warning signs indicating that your area is prone to tsunamis (like the one in the photo above).
  • Your local authorities have issued information about the potential for tsunamis.
  • Natural sea barriers such as mangrove swamps have been removed for development.
  • Tsunamis have struck your coastal region in the past (do some library research or ask at the local government office). FEMA has a website enabling online flood risk searches: Mapping Information Platform.
  • Your home, school, workplace etc. buildings are not tsunami resistant.[3]

SECOND STEP: Prepare in advance. If your research demonstrates that you are at risk, prepare both an evacuation plan and a safety pack.

  • Assemble a safety pack: see “Things You’ll Need”. Food, water and First Aid kit are the basics required. Keep the safety pack somewhere obvious, well-known to everyone in the building and easy to grab in an emergency. It can also help to leave a raincoat or other coat for each person near the safety pack.
  • Develop an evacuation plan: an evacuation plan must be prepared in advance to be of use. In developing one, consider your family, your workplace, your school and your wider community. If nothing is being done in your community, take the initiative to start developing an evacuation plan and insisting that local authorities participate. Lack of evacuation plans and local warning systems increase the vulnerabilities for you, your family and community.[4] These are the things that should be part of a successful evacuation plan:
    • discussion with family, and colleagues on the options for evacuation.
    • practice drills to ensure that all members of the community are clear about what they need to do during a safety evacuation
    • include a plan that can ensure a head count of every single member of the community; ensure that assistance for disabled or ill persons can be provided
    • ensure that warning and evacuation signals are understood by the community in advance – distribute pamphlets or give lectures to ensure that everybody is aware. Read Understand Tsunami Notification Terms.
    • remember to provide multiple safety routes owing to the possibility of an earthquake destroying roads and other infrastructure, preventing exit using some routes.
    • consider what types of sheltered areas might exist in the evacuation zones; do such shelters need to be built in advance?

THIRD STEP: Heed natural warnings. Natural warnings can help to indicate the imminent arrival of a tsunami. Be aware that in many cases, these may be the only warnings you will get as safety authorities may not have a chance to get warnings and evacuation procedures underway. Be self-responsible and keep you and your family, friends and colleagues safe. Natural signs that herald the possibility of a coming tsunami include:

  • An earthquake. If you live in a coastal zone (by the sea), the occurrence of an earthquake should be immediate cause for alarm and evasive action.
  • Rumbling under the ground. Even if there is no actual “earthquake” but you can perceive sizable rumbling under the ground, heed this warning.
  • A rapid rise and fall in coastal waters. If the sea suddenly recedes (draws back), leaving bare sand, this is a major warning sign that there is about to be a sudden surge of water inland.
  • Animal behavior changes. Watch for animals leaving the area or behaving abnormally, such as trying to seek human shelter or grouping together in ways they would not normally do.[5]

FOURTH STEP: Heed community and government warnings. If the local authorities do have time to issue a warning, take heed. Inform yourself in advance of how the local authorities plan to make warnings so that you do not mistake it or ignore it. Spread the information to family, friends, neighbors and the community; if the local authorities have pamphlets, a website or other information sources, ask for copies to distribute or request that the local authority fulfill this role.

FIFTH STEP: Take action. If a tsunami is likely to make landfall on your coastal region, react immediately. Put into place the Evacuation Plan. Actions should include:

  • Move!: Immediate movement away from the coast, lagoons or other bodies of water next to the coast is essential.
  • Head inland. This means going up to higher ground and even into hills or mountains. Always head away from the coast and keep moving towards inland.
  • Climb high. If you cannot head inland because you are trapped, head up. Although not ideal, if this is your only option, choose a high, sturdy and solid building and climb up it. Go as high as you possibly can, even onto the roof.[6]
  • Climb a sturdy tree. As a very last resort, if you find yourself trapped and unable to move inland or climb a high building, find a strong and tall tree and climb up it as high as you can. There is a risk of trees being dragged under by the tsunami, however, so this really is a measure to be used only if all other alternatives have been rendered useless. The stronger the tree, the higher it will allow you to climb and the sturdier its branches for resting on (you may be there for hours) and the better chances you will have of surviving.[7]

SIXTH STEP: React quickly if you are caught up in the water. If you did not manage to evacuate but find yourself caught up in the tsunami for one reason or another, there are things that you can do to try and survive:

  • Grab onto something that floats. Use a floating object as a raft to keep you above the water. Items that float such as tree trunks, doors, fishing equipment etc. may be in the water with you.[8]

SEVENTH STEP: Abandon belongings. Save lives, not possessions. You will lose valuable time trying to retrieve things and belongings may hamper your escape. Grab your safety pack, something to keep you warm, your family and leave immediately.

EIGHTH STEP: Keep away for at least half a day, if not longer. A tsunami comes in waves. There may be many, many waves lasting for hours and the next wave may be even larger than the last.[9]

NINTH STEP: Try to get reliable information. Listen to the radio for updates on what is happening. Do not trust the rumor tree – it is better to wait than to return too early and be caught by more incoming waves.

TENTH STEP: Wait for local authorities to issue an “All Clear. Only then should you return to your home. Find out in advance how local authorities propose to announce such a notice. Remember that roads may be extremely damaged by the tsunami waves and you may have to take alternative routes.[10] A good pre-planned emergency plan should account for this possibility and provide alternative routes.

ELEVENTH STEP: Realize that concentrating on survival continues after abatement of the tsunami. Once the tsunami has subsided, there will be debris, destroyed and buildings and broken infrastructure. There may also be bodies. Fresh water supplies may be destroyed or disrupted. Food supplies will most likely be unavailable. The potential for disease, post-traumatic stress disorder, grief, starvation, and injuries will make the post-tsunami period just as perilous as during the tsunami. An emergency plan should also consider the aftermath and what needs to be done to protect you, your family and your community. The reality is that coping with the aftermath of a tsunami is not an individual effort but a community one. If your local authorities have not put action plans into place, insist that they do so or form a community action group to consider a post-tsunami plan. Things that can help survival post tsunami include:

  • Planning a pre-positioned fresh water supply. Whether bottled water or filtered water, an emergency water supply should be in place in your community.
  • Opening up undamaged homes and buildings to others. Help those in distress and provide them with shelter.[11]
  • Ensuring that there are power generators to enable cooking, maintenance of hygiene and return of basic health and transportation services.
  • Running emergency shelters and food distribution.[12]
  • Getting health care into action immediately.
  • Quelling fires and gas ruptures.


  • If you are at the beach and see the tide recede strangely and completely, evacuate immediately; this is not an invitation to investigate but one to run in the opposite direction.
  • Teach children to recognize the signs of an impending tsunami. Ten year old Tilly Smith saved her family and other lives in the 2004 tsunami because she listened in geography class: Tsunami Family Saved by Schoolgirl’s Geography Lesson.
  • As you move very quickly, away from the sea, warn as many people as possible whilst doing so. Once the tide suddenly recedes, it is likely that you have only a couple of minutes at best before the tsunami arrives.
  • If a distant tsunami is detected, major cities are alerted a few hours or less before the tsunami hits. Heed these warnings!
  • The first time you hear of a tsunami coming and want to be safe, pack up and drive inland to a city/town where you are safe of being hit until the storm has resided.
  • Don’t wait for warnings. If you think a tsunami is coming evacuate immediately.
  • The main cause of death during a tsunami is drowning. The second major cause is being battered by debris.[13]

Things You’ll Need

  • Food
  • Toilet paper
  • Clean water
  • 1 First Aid kit – per family or group
  • Dry, warm clothing and a waterproof coat if possible or ponchos – per person
  • Flashlight and batteries – per family or group
  • Pillow (inflatable type) – per person
  • Battery or crank-operated radio – per family or group
  • Emergency food and water supplies
  • Can opener
  • Cash
  • Medicines needed by any person on a regular basis, e.g Asthma Inhaler or even heart medication.
  • Cell phone/ mobile phone

Related Links From wikiHow:

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  1. ADVISORY: Tsunamis to hit Philippines 1 to 2:30pm TODAY! « THE VINCENTON POST

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