Tsunami

Advertise

KODE IKLAN DISINI

Safe Link Converter

Tunggu beberapa detik untuk lanjut ke link tujuan
Mohon bersabar.

How to use our tool:

1. Click on How To Use menu above.
2. Click on the code and CTRL + C on your keyboard.
3. Paste the code in your HTML blog theme before the </body>.
4. Save your HTML blog theme. you are done!
5. Now, your blog's outbound links was encrypted!

Advertise

KODE IKLAN DISINI

Your link show here

Advertise

KODE IKLAN DISINI

Tsunami is one type of natural disaster associated with ocean waves. The ocean waves are very large and hit the land (read: terrestrial ecosystem) is called the tsunami. Tsunami comes from Japanese, Tsu which means port and Nami which means wave. Literally, the tsunami means the big waves at the harbor. More scientifically, what tsunami means is the movement of water bodies caused by sudden vertical sea-level changes. why the name of this disaster is a tsunami taken from the Japanese language? Perhaps because Japan is a country that is very vulnerable to the earthquake, so the occurrence of large waves that are the result of an earthquake commonly occurs.

Tsunami wave is a type of wave that can move in all directions to reach the distance of thousands of kilometers. The damage power caused by these waves will be stronger when located on land close to the center of the disturbance. When in the ocean (read: various kinds of sea), tsunami wave height is not too high, only about 1 meter only. However, the speed of this wave can reach 500 to 1000 kilometers per hour, this speed is equal to the speed of jet aircraft. So fast this wave, the ship is in the ocean until it does not feel the presence of this wave.

Conversely, the closer the coastal ecosystems, the wavelength decreases, only about 35 to 50 kilometers per hour. However, the high waves will increase, up to 20 meters. With such a height, the tsunami waves can enter the mainland to a distance of tens of kilometers. Here is a quick overview of the tsunami wave.

Causes of Tsunami
The tsunami was a terrible natural disaster. Tsunami is a very large wave of images that crashed into the land area. It is undeniable that the terrestrial (read: terrestrial) parts affected by the waves will be devastated by the power of the waves. The occurrence of this tsunami is usually not a single natural disaster. That is, usually the tsunami does not come alone suddenly. But usually there are deliver, so there was a tsunami. Some natural events are the cause of the tsunami. Tsunami occurrences include the following:

1. Underwater earthquake

Earthquakes are the most common cause of tsunamis. The earthquake in question is certainly an undersea earthquake (read: the type of earthquake). Underwater earthquakes cause a lot of vibrations that will lead to tsunami waves. Underwater earthquakes are the cause of the majority of tsunamis in the world. Nearly 90 percent of the world's tsunami events are caused by earthquakes that occur under the sea. Earthquakes that occur under the sea is a type of tectonic earthquake that arises due to a meeting or tectonic plate collision. Although undersea earthquakes are the main cause of tsunamis, it does not mean that all underwater earthquakes can cause tsunamis. Underwater earthquakes will cause a tsunami if it meets several conditions, among others, are as follows:

-The epicenter is located at a depth of 0 to 30 kilometers below sea level
Potentially tsunami-causing underwater earthquakes are where the epicenter is at a depth between 0 and 30 meters below sea level. The shallower the epicenter, the greater the chance of a tsunami. In other words, the shallower the epicenter of the earth, the greater the chance of a tsunami. This is because the vibrations are also felt larger and stronger, so the chance of a tsunami is also getting stronger.

-Earthquakes that occur on the scale of 6.5 on the Richter scale
The next criterion is that the earthquake must have a strength above 6.5 on the Richter scale. So for example there is a shallow earthquake, but the earthquake is small, it probably will not give a chance of a tsunami. Earthquakes that occur with a minimum strength of 6.5 on the Richter scale are considered capable of affecting the waves of sea water, which will eventually lead to a tsunami. Disaster experience that occurred in Aceh in 2004 ago, the earthquake that occurred has the power of about 9 on the Richter scale. To find out the magnitude of the earthquake earthquake measuring devices used.

-The type of earthquake fault is up and down fault
Another criterion that also supports the occurrence of tsunami waves is the type of fault. The magnitude of the earthquake that can generate a tsunami wave is a type of rising and falling. The existence of this ups and downs will cause a new wave which, if moved to the mainland, could result in a tsunami. This will be worsened if there is a fault on the seabed, which will cause the seawater to drop suddenly and become the forerunner of the tsunami.

Well, that's some of the earthquake criteria that can cause a tsunami. Underwater quakes that do not fit the above criteria then the chances of generating a tsunami are also small.

2. The eruption of undersea volcanoes

The cause of the next tsunami is the occurrence of volcanic eruptions that exist under the sea (read: danger of mountains under the sea). The oceans that fill two-thirds of the earth's surface hold a myriad of secrets. We do not know much about the appearance of underwater appearance, that it is not only the mainland that has active volcanoes, but also the underwater has many active mountains. Some active volcanoes that exist beneath the sea can potentially explode or erupt at any time (read: volcano erupted features). As a result of a large or strong eruption of this undersea volcano, it causes a tsunami.

One of the great events that describe the tsunami caused by the eruption of the volcano is in Indonesia, precisely in the west of the island of Java. Mount Krakatau name, erupted in 1883. This incident caused a devastating tsunami waves that swept the area around the Sunda Strait. In addition to Krakatau mountain events, in Indonesia also occurred Tambora eruption in 1815 in East Nusa Tenggara until megakibatkan Maluku islands. Indonesia is a country that has many volcanoes so dubbed the Ring of Fire. This makes Indonesia must always be vigilant because the volcanic eruption can happen at any time.

3. Happened landslides under the sea

The cause of the next tsunami wave is the occurrence of landslides under the sea (read: landslide). The tsunami caused by a landslide under the sea is called Tsunamic Submarine Landslide. Apparently landslides are not only happening on land alone. As mentioned before, the shape of the lower surface of the lait resembles the land. if on land we find hills and ravines, then in the sea is also so (read: marine trench), so there is potential for a longsir. Underwater sea cruisers are generally caused by a tectonic earthquake or submarine eruption. The strong vibrations generated by these ships can cause a tsunami. In addition to tectonic earthquakes and

4. The existence of meteor blast

The next cause of the tsunami is the presence of meteor blast or celestial bodies. This falling celestial body is of course a large sky object. Although rarely occurs, and even there is no documentation that mentions the tsunami due to meteor hit, but this can happen. As simulated by sophisticated computers, that if there is a large meteor (because a small meteor will usually burn up in the Earth's atmosphere) for example more than 1 km in diameter, it can cause catastrophic natural disasters. Mega tsunami generated has a height of up to hundreds of meters. We can predict what will happen next. Hunger due to degraded agriculture and climate change, will kill humans on earth en masse. In addition to the size of the meteor, another thing that is influential is the speed or rate of meteors that reach tens of thousands of kilometers per jam.utern there is no documentation that mentions the tsunami due to meteor hit, but it is bi

The Impact of the Tsunami
Natural disasters are very eventful events very unexpected and not missed. How not, natural disasters will only bring adverse effects, such as loss, poverty, hunger, and sadness. Whatever kind of natural disasters are on earth, none of them are expected to come in the way of man. like the tsunami disaster. like other types of natural disasters, the tsunami also caused a lot of impact or loss. Some of the tsunami impacts are as follows:

1. There was damage everywhere

The impact of the first tsunami was the occurrence of damage everywhere. Damage in question is physical damage both buildings and non-buildings. This massive wave generated by the tsunami can sweep land areas, both coastal areas (read: the benefits of the coast) and surrounding areas. The damage that occurs is in areas affected by sweeping waves. These high-powered waves can instantly disintegrate buildings, sweep sand or soil, destroy community plantations and rice fields, destroy fish ponds and fields, and so on. The damage that occurs will cause many losses, especially the loss of material.

2. Agricultural land and fisheries damaged

Terrible tsunami waves can also cause farmland and fisheries to be damaged. Tsunami waves with great power are able to wipe out whatever is on the land. Never mind the plants that exist in the fields, even the building was a lot of collapsed. In addition, the fish planted in the fishing pond will also be swept away by the water from the tsunami waves.

3. Inhibits economic activity

We agree that all natural disasters can disrupt economic activity in a region. It also includes the tsunami disaster. Damage and loss caused by tsunami waves will cripple economic activity for some time. Not only that, but the losses caused by the tsunami will probably replace production and trading activities within a certain time.

4. Material loss

All natural disasters can cause material losses, as well as tsunami waves. The material losses are due to collapsed buildings, damaged farmland and fisheries, and lost their property.

5. Spiritual loss

In addition to material or measurable losses in money, the tsunami disaster can also cause spiritual harm. What is meant by spiritual loss is a loss that is not in the form of possessions, but rather to the soul. How a child will be resilient after a great natural disaster, especially if he lost a family member, then it will cause trauma in the soul of a small child. As a result the child must undergo several therapies to be free from the trauma. Even things like this are only experienced by small children, but also adults and even elderly.

6. Giving seeds disease

The next impact of the tsunami disaster is the emergence of disease seeds. When the high ocean waves melt the land, then what we will find are dirty objects, muddy soil and so on. The unclean environment will infect the seeds of disease. Especially if coupled with the bodies of living creatures who died, the environment will increasingly unhealthy. In addition, if living in the evacuation then that will happen is the emergence of disease seeds due to lack of saranan and pre facilities.

Well, that's some impact of the tsunami. The impacts mentioned above are short-term impacts. In addition to short-term impacts, there is also a long-term impact that we will feel, such as the unstable economic conditions of the region, and much more.


Signs of a Tsunami Disaster
Previously mentioned above that the tsunami disaster is a type of natural disaster always accompanied by certain signs. therefore the occurrence of this tsunami can be predicted kejadinnya. There are several signs that indicate that there will be a tsunami. Therefore, people must be vigilant and take appropriate action immediately. Some signs of a tsunami will be known in this article. here are some signs or features of the tsunami.

1. The occurrence of an earthquake or vibration centered from the bottom of the sea

The occurrence of a tsunami begins with an earthquake or a kind of vibration originating from below or from within the ocean. This earthquake is certainly as previously described, which is centered or has a depth of less than 30 kilometers and vibration exceeds 6.5 scala richter.

2. Sea water suddenly receded

After an earthquake or vibration, the next is the sea water (sea ecosystem) suddenly. the sudden receding of seawater is the most obvious sign of a tsunami. The farther the sea water (read: the tide of sea water), then the strength of the tsunami that will happen will be greater. Thus when the water recedes this happens then the most appropriate step is to immediately evacuate so that not many victims fall. This sea water retreat is actually caused by the sea surface dropped suddenly so that there is a vacuum of space and cause seawater seas are attracted. And when the tsunami wave has created a new one, then the water will return to the shore with a very large waveform.

3. Unusual natural signs

Before the tsunami, there were also some unusual natural signs. These unusual natural signs are like unusual wind motion (read: the wind type), strange animal behavior. Some of these strange animal behaviors, for example, are active bats during the day, then many birds fly in clusters (where they are usually never seen), and also some of the behavior of terrestrial animals. Example in Thailand, before the tsunami, Thailang elephants ran to the hills to escape.

4. There was a roar

A sign of the future of the tsunami is the sound of a roar. There were experiences by people who experienced the 2004 tsunami disaster in Aceh, where shortly before the tsunami they heard a very loud rumbling from the sea, like the sound of a freight train. Some of them also heard the sound of explosions from within the ocean. This is quite a strong sign of tsunami disaster.

Those are some of the signs of a tsunami that we can see before the tsunami. The signs above are signs of nature. However, along with the development of the times and technology, then created a tool that can be used to mendetersi the tsunami. Thus we can obtain more accurate information.

sumber : http://www.saladku.ga