The term tsunami comes from the Latin mare , which when translated means sea and motus, which when translated proposes that there is a movement , sometimes this climatic phenomenon is confused with what the tsunami is due to their similarities , however, although both are compared and confused. climatic phenomena are quite different.
What is a tidal wave?
Tidal waves are generally defined as a violent agitation of the currents of the sea, or more specifically of its waves , they are generally produced by displacement of the tectonic layers, by some folding, by an eruption, or they may very well be the cause of earthquakes or , in less possibilities meteorite impacts, however, that is not ruled out, this environmental phenomenon when it takes place sends large amounts of turbid and moved waters, in the form of derailed waves, of average size, to what are the coasts , affecting moderate and severely these areas and the population that lives in it.
- How it spreads
- Effects edit
- What to do in the event of a tsunami
Its starting point takes place in what is the epicenter of the sea floor, when the subsoil of the ocean is severely compromised, the tectonic plates will have an aggressive movement, raising this to the depths of the sea, if we transfer that to There, the ocean begins to slightly unbalance until it reaches the point where it seems uncontrollable, and it is possible that it does not just seem like it, but it is, these uncontrolled movements begin to swing the sea, causing waves of great density , the marine hangover, which generally goes in the opposite direction, is totally unstable, which makes seawater more violent when it has to attack any type of coast, which is where it would necessarily stop.
The characteristics of a tsunami are very simple to discriminate , especially because it has two fundamentals , they develop starting from a process of displacement of the tectonic plates and immediately affect what the marine currents are, forming large waves.
Tidal waves, although not extremely extensive, are divided into subtypes, which are the following:
- Tidal waves of the earth’s crust .
- Tidal waves due to volcanic eruptions.
- Tidal waves due to underwater explosions.
- Tidal waves due to the abrupt movement of tectonic plates.
One of the most common causes of the formation of these natural phenomena, more than pollution , is land displacement , whether maritime or not, a minimum unevenness in the ocean terrain can cause it , even a bad translation movement, which that it would immediately cause the aggressive movement of the tide; In addition to this, it is said that the main cause of these phenomena are earthquakes, since by moving so violently the tectonic layers immediately affect what is the subsoil of the sea.
Tidal waves as such do not have stages that determine their process step by step, since it is not an easy phenomenon to measure or quantify , due to its rapid and violent action, it is not possible to be sure whether or not it has stages of formation. what is known to have stages is the tsunami .
How it spreads
The only way for a tidal wave to propagate is if there is more than one displacement of the tectonic plate, which means that there must be several earthquakes or tremors, since it cannot propagate having a single epicenter.
Tsunamis are constantly feared for their capacity and the serious damage that they can cause, obviously, these do not cause as much damage as that caused by tsunamis , however, these are extremely serious, tidal waves can go from flooding and striking with a simple coast with nothing, to destroy villages, houses and, in addition to that, leaving people injured and dead because of it.
There is the hypothesis that they can cross thousands of kilometers quickly, and although there is no exact measurement of the altitude that the waves generated thanks to this phenomenon reach, it can be said that each of them is separated at intervals of 10 to 45 minutes, in addition to this, as long as the tectonic plate remains sensitive, what are erratic waves will continue to occur.
The intensity of the tidal waves varies according to the intensity of the earthquake , in general, these are not constant, although they will always be massive and feared for their scope and destructiveness.
What to do in the event of a tsunami
The most advisable step to follow when witnessing a tsunami is to run and take refuge in the highest place, since what is sought is to prevent it from wiping out the few people or the few supplies that may remain, in any case, if people manage to survive this natural disaster, they can consider themselves extremely lucky.
- March 11, 2011: Tsunami in northeast Japan.
- October 2010: In Indonesia, a tsunami caused by a volcano eruption kills more than 500 people.
- February 2010: In Chile an earthquake causes a tsunami.
- September 2009: A continuous earthquake causes a tsunami in the USA.
- April 2007: An 8.0 tsunami occurred in the city of Solomon.
- August 1976: An 8.0 earthquake occurs near the Philippine islands of Mindanao and Sulu, thus causing a tsunami.
- March 1964: A 9.2 earthquake hits Alaska.
- January 1906: Earthquake of 8.8 occurs on the coasts of Ecuador and Colombia, thus generating a tsunami.