Tsunami is a giant sea wave which is caused mainly due to earthquakes occurring undersea. When an earthquake or a volcanic activity takes place, a large amount of water may get displaced. The displaced water forms waves. These waves when approach the shallow water in the coastal areas, becomes high and crashes onto the shore. Tsunami causes widespread destruction of lives and property.
Here we have segregated stepwise actions which should be taken before, in and after the Tsunami.
1) Before a Tsunami: -
• One should get ready before a tsunami strikes. It will help reduce damage to your home and business, it will also help you to survive.
• Ask your council about your tsunami risk, if you live in a coastal area, always keep a check on the local warning arrangements.
• If you have a disability or special requirements, arrange with your support network to alert you of any warnings and emergency broadcasts.
• Always advance a Household Emergency Plan and have a Getaway Kit ready with you.
• Know where the nearest high ground is and how you will reach it. Plan to get as high up or as far inland as you can. Plan your escape route for when you are at home, as well as for when you may be working or holidaying near the coast.
2) During a tsunami:-
• If possible, keep your getaway kit with you if possible. Do not travel into the areas at risk to get your kit or belongings.
• Try to take pets with you if you can do so safely.
• One should move instantly to the nearest higher ground, or as far inland as you can. If you have evacuation maps handy, follow the routes shown.
• Walk or bike if possible and drive only if essential. If driving, keep going once you are well outside the evacuation zone to allow room for others behind you.
• If in any case, one cannot escape the tsunami, then he/she should go to an upper storey of a sturdy building or climb onto a roof or up a tree. Or grab a floating object and hang on until help arrives.
• One should remember that boats are usually safer in water deeper than 100 metres than if they are on the shore. Always move boats out to sea only if there is time. It should be safe to do so.
• Never go to the shore to watch for a tsunami. Always try to stay away from at-risk areas until the official all-clear is given.
• Listen to your local radio stations as emergency management officials will be broadcasting the most appropriate advice for your community and situation.
3) After a tsunami:-
• Always try to be connected to the radio for civil defence advice and do not return to the evacuation zones until authorities have given the all-clear.
• Be aware that there may be more than one wave and it may not be safe for up to 24 hours, or longer. The waves that follow the first one may also be bigger.
• Check yourself for injuries and get first aid if needed. Help others if you can.
• Do not visit for any sightseeing.
• One should extreme caution while re-entering homes or buildings, floodwaters may have damaged buildings.
• Be sure to take notes and photographs for insurance purposes if the building gets into damage state. If you rent your property, contact your landlord and your contents insurance company as soon as possible.
A tsunami is actually a series of waves. One must not go to an affected coastal area until it is declared to be safe by authorities.