Why did the Russian mega earthquake not cause more tsunami damage?

It has been one of the strongest earthquakes ever – but many people have not been brought to a frightened tsunami so far.

When Wednesday (00:25 BST) was killed at 11:25 Local time by 8.8-Eastern Russia hit Russia at 11:25, it expressed concern for the coastal population in the Pacific region.

Millions of people were evacuated, as the Indian Ocean and Japan had returned to the brain in 2011 for the devastating tsunami of Boxing Day 2004, both originated from similar earthquakes.

But today’s tsunami has become very serious, even if it causes some harm.

So what caused earthquake and tsunami – and it was not as bad as it was not as bad in the beginning?

The doodle peninsula is distant, but is located in the “Pacific Ring of Fire” – so it is said to be due to the high number of earthquakes and volcanoes occurring here.

The upper layers of the Earth are divided into segments – tectonic plates – which are all running relative to each other.

“Pacific Ring of Fire” is an arc of these plates that extend around Pacific. According to the British Geological Survey, eighty percent of the world’s earthquakes are accompanied by the ring.

Away from the coast of the peninsula, the Pacific plate is going to about 8 cm (3in) per year in the north -west – only about double rates that your nails increase, but rapidly by tectonic standards.

There it comes in contact with another, small plate – which is called Okhotsk Microplate.

The Pacific plate is the ocean, which means that it has dense rocks and wants to drown under the less dense microplate.

As the Pacific plate sinks towards the center of the Earth, it becomes heated and melts, effectively disappears.

But this process is not always smooth. Often plates may get stuck as they move beyond each other and the overriding plate is pulled downwards.

This friction can build in thousands of years, but then suddenly it can be released suddenly in a few minutes.

It is known as megathrous earthquake.

“When we usually think of earthquakes, we imagine a sub -center on a map as a small point. However, for such large earthquakes, the mistake must have broken more than hundreds of kilometers,” the lecturer in environmental earthquake science at University College London. Stephen Hicks told.

“This is the huge amount of slip and fault area that produces such high earthquake magnitude.”

The largest earthquake recorded in history, including the three strongest in Chile, Alaska and Sumatra, all had megathrust earthquakes.

And the Kamchatka peninsula suffers from a strong earthquake.

In fact, another high magnitude 9.0 Earthquake dissolved less than 30 km (19MI) from today’s earthquake in 1952, stated in the US Geological Survey.

This sudden movement can displace the water above the plates, which can then travel to the beach as a tsunami.

In the deep ocean, the tsunami can travel more than 500mph (800 km/h), rapidly as a passenger airplane.

Here, the distance between the waves is too long and the waves are not too much – rarely over a meter.

But as soon as a tsunami enters the shallow water near the land, it slows down, often up to 20–30mph.

The distance between the waves becomes smaller, and waves grow in height, which can effectively make a wall of water near the coast.

But it is not a guarantee in any way that a very strong earthquake will reach especially long tsunamis far away.

According to today’s officials, today’s earthquake brought 4 meters (13 feet) tsunami waves in some parts of eastern Russia.

But they do not come close to the ten-off-meter of the Waves of Boxing Day 2004 in the Indian Ocean and Japan 2011.

“The height of the tsunami wave is also affected by the local shapes of Cflore near the coast and near [shape] The land where it comes, “Professor Lisa McNell said, Professor of Tectonics at the University of Southampton.

He said, “How serious the factors are, how serious the effect is, with how serious the effect is,” he said.

Preliminary reports of the US Geological Survey stated that the earthquake focused at a depth of about 20.7 km (12.9 mi) below the Earth’s surface.

This can lead to more displacement of seaflor, and is therefore a large tsunami wave, but it is difficult to mention it immediately after the event.

“A possibility is that the tsunami model probably guessed a conservative at the depth of the earthquake,” Dr. Hicks told BBC News.

“Possibly you can replace the earthquake from another 20 kilometers deep, and this will actually reduce the dimensions of tsunami waves.”

Another important element is the development of initial warning systems.

Due to the high incident of earthquake in the Pacific region, many countries have tsunami centers. They warn through public announcements to evacuate the population.

There was no such system when the 2004 boxing day tsunami was – left many people to vacate without time.

More than 230,000 people died in 14 countries in the Indian Ocean.

The initial warning system is important due to the limited ability of scientists when the earthquake will occur.

American geological survey A 7.4 measuring earthquake was recorded in the same area ten days ago.

This may be a predisposition – an early release of energy – but it is not a prophet of the exact time of the future earthquake, Prof. McNell explained.

“Although we can use how fast the plates are moving forward, GPS to measure current movements and when the previous earthquakes occurred, we can only use this information to predict the possibility of earthquake,” he said.

The geophysical survey of the Russian Academy of Sciences (GS RAS) will continue to monitor the sector as it is estimated that the afterchoxes may continue till next month.