Why wasn’t the Russian mega earthquake cause more tsunami damage?

It has been one of the hardest earthquakes ever recorded, but so far he has not been afraid to bring the catastrophic tsunami.

8.8-Magnitude Quake when Russia struck in groups at 11:25 on Wednesday (00:25 BST), he raised concern for coastal populations during the Pacific.

They evoke millions of people, the mind turned his back on the 2004 devastating Tsunami of the 2004 Indian Ocean and Japan, both of the great earthquakes.

But today’s tsunamis has been much more serious, even with some damage.

So what caused the earthquake and tsunami – and why didn’t it be as bad as early?

Kamchatka Peninsula is remote, but “Pacific Fire” – It is called a large number of earthquakes and volcanoes that occur here.

The upper layers of the earth are divided into sections – tectonic plates – all moving with each other.

The arch of these plates that extend around the Pacific is the “Pacific Surdon”. It takes place in the eighty percent of the world earthquake in the ring, according to the geological survey of Britain.

Outside the coast of the peninsula, the Pacific plate is moving around 8cm (3in) in the year – the rate of growing your nails twice, but according to tectonic standards.

There is another smaller plate contacted. Okhotsk is called a micropplate.

The Pacific Plate is an oceanic plaque, which means that he has dense rocks and wants to sink below less microppiece.

As the Pacific Plate sinks to the center of the Earth, it heats and begins to melt, effectively disappear.

But this process is not always smooth. Often plates can be glued while they move over each other and drag the plate over it.

This friction can be built over thousands of years, but only a couple of minutes is released.

This is known as MeGahrust earthquake.

“When we think earthquakes, we think of a epicenter on the map. However, we believe that the failures are more than hundreds of kilometers,” Stephen Hicks, Professor of Environmental Seismology at the University of London University.

“It’s a great amount of blame and sliding that creates a great magnitude of the earthquake.”

The largest earthquakes recorded in history, including three strongest in Chile, Alaska and Sumatra, were earthquake megatrum.

And Kamchatka Peninsula complaints are strong.

In fact, another tall magnitude of 9.0 was less than 30 km (19mi) in 1952 in 1952, according to the US Geological Survey.

This sudden movement can displace the water above the dishes, and then it can travel to the coast as a tsunami.

In the depths of the ocean, Tsunami can travel more than 500 kmph (800km / h) as fast as a passenger plane.

Here, the distance between the waves is very long and the waves are not very high, rarely more than a meter.

But as a tsunami enters water near the ground, it slowly slows down about 20-30 meters.

The distance between the waves is shortened, and the waves grow in height, which can create a water wall near the coast.

But in no case is it guaranteed that very powerful earthquake will bring very high tsunami in the interior.

Today’s box brought tsunami 4m (13ft) waves in eastern parts of Russia, according to the authorities there.

But there are no 2004 boxing days in the 2004 metro wave High of Indian Ocean and Japan.

“The height of the tsunami wave is also affecting the coast of the coast near the coast,” Lisa McNeill said Lisa McNeill, Professor of Tectonics at Southampton University.

“These factors, along with what populated coast, is influenced by the impact,” he added.

The initial reports of the US Geological Survey said the earthquake focused on a narrow depth, 20.9 km below the surface of the Earth (about 12 kilometers).

This can lead to a greater offset of seabird and therefore lead to a larger wave of tsunami, but it is difficult to tell so soon after the incident.

“It is an option that Tsunami models have taken conservative estimation over the depth of earthquake,” Hicks Dr Hicks BBC News.

“The earthquake may change another 20 miles deeper, which would really significantly reduce the amplitude of the tsunami waves.”

Another important item is to develop early warning systems.

Pacific earthquakes Because of the great event, many countries have tsunami centers. They send reminders to evacuate populations through public ads.

It’s not a system like this when the 2004 boxing day took place in Tsunami, leaving many people without time to evacuate.

More than 230,000 people were killed throughout 14 countries of the Indian Ocean.

Early warning systems are important due to the ability of scientists who predict an earthquake.

US Geological Survey He recorded an earthquake 7.4 in the same region in the same region ten days before.

This may be foreshock – premature release of energy, but not the predictive predictive of the future earthquake predictive, explains Prof McNeill Prof.

“We can also use the plate, when the GPS measures current movements and the previous earthquakes will only use this information to make the probability of the earthquake,” he said.

The Russian Academy of Science Academy (GS RAS) will continue to monitor the region in order to continue the next month.