Tsunamis typically don’t strike once. There are usually many cycles of a tsunami that are spaced out over time. Some can go on for a few days.
If you go down by accident, you could get caught up in a second or third wave. This is why it’s vital to keep dry and high for a specific period. But when making your judgment of when to go back down, it’s also imperative to be really cautious with warnings and warning systems. It has been reported that the death toll for the 2004 Sumatra tsunami was due to a bad tsunami warning system. Folks just weren’t ready for the onslaught.
In recent years, developing nations dealing with tsunamis have suffered from the effects of thieves and vandals tampering with and destroying systems that will alert authorities about an upcoming tsunami.
Kirk says that in some cases, authorities have provided radio broadcasts giving an all-clear for folks to descend from the hill, only to be hit by a second, third or fourth wave. Again, the mantra here is to be very cautious when making a decision about when to descend. Pay attention to alerts but be cautious with the “all-clear.”
Know the topography of your destination
It’s vital to know not only the tsunami history of the place you are traveling to but the topography as well. Villages located at low sea level will get damaged by a tsunami, whereas villages located in deeper water areas aren’t as affected. This information can be crucial to your action plan if a tsunami appears.
Know the locals and authorities
It’s important to make an attempt, even over language barriers, to speak to locals of the area you are residing in, about what systems and infrastructure is put in place to deal with a tsunami.
Thankfully, there are a host of things you can do to be safe during a tsunami. By preparing, being aware, and relocating to a safe location during the occurrence, you’ll be way more likely to survive a tsunami.