A volcano in Tonga erupted 8 times in 48 hours, how devastating is the lava from the volcanic erupti

The catastrophe caused by volcanic eruptions is almost devastating and is also known as one of the most terrible natural disasters in the world. Underground molten slurry erupts upwards under the influence of pressure.

Anyway, he can destroy a city in an instant, which is why Japan is so scared now, because their volcano there is about to erupt.

In an instant, all the hair and fever of the animal can be glued together, and the plant can be turned into a piece of ash, leaving the surrounding area without grass and ashes.

The volcanic eruption in Tonga has had a very large impact on the local area. For example, the tsunami caused by the eruption swept through the country at once, causing the entire country to lose communications. In addition, the volcanic ash emitted by the eruption also affects people's vision, so that rescuers cannot be operated by airplane, but can only reach the country by shipping, so it affects the speed of people's rescue.

The level of the eruption is very high, and through some satellite monitoring images, it can be seen that the volcanic ash produced at the moment of the eruption has formed a great power. Moreover, this time the volcano was at sea level, which caused the instability of the seabed, and the formation of a huge tsunami affected Tonga, which is very close to the volcano. Tonga is a country that was hit by the tsunami in an instant, and in this situation, many communication equipment has been cut off, and the whole country is in a state of disconnection, so I don't know how many people were injured and I don't know the damage to property.

Although the two closest countries to Tonga, Australia and New Zealand, could send people to the rescue, due to the thick volcanic ash, the plane could not see the road ahead at all. The country can only be reached by boat, which will inevitably affect the time when people finally log in.

If a small volcanic eruption is spoken, it will only pollute the local environment. However, the volcanic eruption level like this one is relatively large, so there will inevitably be a large amount of volcanic ash produced, which will affect the solar radiation to reach the earth's surface, so it will inevitably cause the temperature to drop. Moreover, the tsunami was very widespread, and it also caused some natural disasters in some countries.

Therefore, when a super-large volcano erupts, it is necessary to pay more attention and actively rescue it.

Tonga still has an embassy in the country, so many people are worried about whether any Chinese people are in danger. I also hope that we can actively send rescue teams to the rescue, so that the safety of the local people can be guaranteed, and we can understand how harmful the eruption is.

Tonga remains an information island

Tonga remains an information island, and it is very difficult for the outside world to contact or understand the situation in Tonga. At present, the whole of Tonga is in a one-way external communication situation, and there is a single channel of communication, which can only be through satellite**. According to the latest news, a communication service company in Tonga claimed that they had resumed international calling, but the operator's network call was disconnected after about 10 minutes.

At present, the submarine fiber optic cable connecting to Tonga is broken and has not been repaired. According to the Consul General of Tonga in Sydney, it will take about two weeks to repair, and one of the breakpoints is relatively close to the volcano, and it is unknown whether the repair of the cable will be carried out on schedule because the eruption is likely to continue in the next few weeks.

Whether the living materials of the Tongan people are guaranteed

The most difficult issue for the Chinese in Tonga is communication. At present, Chinese personnel mainly rely on the Chinese Embassy in Tonga to learn about the latest disaster response policies and safety recommendations.

The pollution of water sources caused by volcanic ash is very serious, but fortunately, many Chinese companies have taken timely measures to protect some water sources as soon as the volcanic eruption occurs, and have also added filtration devices to ensure that the water sources are clean.

The supply of fresh vegetables is now largely out of supply, and this situation is estimated to continue for several months. However, some Chinese companies in Tongan have material reserves, and their lives are still guaranteed in the short term.

Tonga airport is currently cleaning up the volcanic ash, but progress is very slow because the local economy is relatively backward and there is no large machinery, so it can only be cleaned by hand.

The impact of this disaster on the local area can be said to be very large, first of all, it will cause extreme pollution of the local environment, and it will also affect the sea surface, and even produce a tsunami.

Some overseas Chinese left the sea area affected by the volcanic eruption near Tonga by boat and made contact with China, they should have avoided the thick volcanic ash cloud by boat, and got in touch with their relatives through satellite**.

As for the embassy, it must have some means of emergency communication, such as satellites** and low-power short-wave radios, and it is impossible to have high-power long-wave radios. The long-wave radio station is not a small thing, the antenna array of that thing is very huge, covering an area of hundreds of acres at every turn, which is not something that the embassy can equip.

Embassies are often equipped with emergency communication means are medium-caliber parabolic antenna satellite communication systems, the antenna diameter is not more than 3 meters, 5 meters of this scale, the transmission power is only about 1kw, not to mention whether it can be used under this scale of volcanic eruptions, at least for transmission ** is not realistic, signal-to-noise ratio, delay may not meet the requirements.

There is no way to know about the eruption itself.

Volcanic eruptions, like **, belong to the blind spot of human scientific research, and it is not easy to get anything buried in the ground. At present, the size of the magma pool beneath the volcano in Tonga, the scale of the eruption, and how long it will erupt are all guesses. I don't believe that any volcano expert dares to go to the vicinity of the volcano to put a listening device now, and human beings now rely on ** waves and listening devices to detect things underground, and this thing is at the bottom of the sea at a depth of several thousand meters, so there is no way at all.

In terms of the impact of the bombing, there has been a lot of other talk, but here I will talk about the impact of communications.

1. In the area covered by the subsequent volcanic ash clouds, the satellite communication signal will be affected;

2. Scatter communication is affected;

3. As long as the eruption is stopped, the influence of long-wave, short-wave and ultra-short-wave communication tends to stop;

4. Only when the eruption stops can we talk about repairing submarine optical (electrical) cables.

The volcanic eruption is a geological disaster, and a serious volcanic eruption occurred in Tangjia, and the volcanic ash has affected the surrounding people, which is very dangerous.

It will affect the local climate, volcanic eruptions, release a large amount of volcanic material, volcanic ash, etc., which will block the sun, causing the local temperature to drop and reduce crop yields. It will also seriously affect the local air quality and pollute the local environment.

TongaVolcanic eruptionsThe reason is due to the mutual squeezing and collision of the Pacific and Indian Ocean plates.

The asthenosphere below the plate is convective to each other, causing the two plates to undergo translational separation movements, so that they erupt in the weakest part of the plate gap.

The geographical location of the volcanic eruption in Tonga.

A huge mushroom cloud formed 68 km north of the Tongan capital and about 104 km in the Luzen Tonga Trench.

Reaching a height of several thousand meters, the resulting tsunami covered an area of thousands of square kilometers.

Expansion:

Volcanoes are eruptive volcanoes, characterized by acidic magma with a lot of gas and high viscosity that has solidified in the throat of the volcano before it reaches the surface, sealing the volcanic passage like a "plug".

As the lower magma accumulated, the pressure increased, and the "plug" suddenly broke open and violently**, a large amount of gas and volcanic debris was thrown into the air.

Generally, this volcanic gas is mainly water vapor, accounting for about 60%, and other components include CO2, N2, Ar, SO2 and a small amount of CO, H2, F2, S2, C2, etc., and the magma concentration is very small (silica.

very little).

Most of the falling volcanic debris will fall into the sea to form ultramafic peridotite deposits, and a small amount will fall near the crater to form rhyolite.

Andesite and basalt. Wait.

Tonga's volcanic eruption is a "once-in-a-millennium" eruption that can last for weeks or even years.

Volcanologist Robin George Andrews told Al Jazeera that the eruption on Hunga Ha'apai Island was a once-in-a-millennium event.

The eruption was so violent that scientists believe it was a once-in-a-millennium event for this volcano. "It takes 1,000 years for a volcano like this to gain power, and we're at the right time for it to burst out of its energy reserves." ”

Shane Cronin, a professor at the University of Auckland in New Zealand, wrote that current signs suggest that the volcano has awakened and that its active period could last for weeks or even years.

The area was badly damaged, but the volcanic ash hindered the rescue:

After the eruption, Tonga has been "lost" since 6:40 p.m. local time on Saturday, and Internet communication has been cut off, and it has not yet returned to normal. Therefore, the extent of casualties and economic losses caused by the eruption is still unclear.

However, since Sunday, there have been scenes of local disasters in Tonga caused by the volcanic eruption. According to the New Zealand Herald, citing the social ** picture, some local roads have been severely damaged, and the sea pond used to protect from the tide and waves has also been washed away, and the gravel of the sea pond has been washed onto the road. Local residents said that the volcanic ash polluted the air and drinking water, and the local ** called on people to wear masks and drink bottled water.

Tonga's neighbours, Australia and New Zealand, are actively taking steps to help, but transportation difficulties caused by volcanic ash are hindering rescue.

The above content refers to Jiemian News Tonga's volcanic eruption is "once in a thousand years", and the active period can last for several weeks or even years.

Maybe wait until the Year of the Monkey!

Volcanic eruptions in Tonga can last for weeks or months, and eruptions can last for up to several years. The volcanic eruption in Tonga has caused great repercussions, and there are many places where tsunamis, such as New Zealand, the United States, Japan, Canada and a series of countries have issued tsunami warnings, so it can be seen that the impact of volcanic eruptions on the surrounding areas is still relatively large. The tsunami did not affect our country, but it still caught the attention of experts, who said that the crater in the area where the incident occurred had woken up.

The eruption can last for weeks or months, or for years. And experts say it's not clear whether the eruption has reached its peak, so it's still being observed. The eruption of volcanic ash from the Tonga volcano is directly as high as 20 kilometers, and this data also makes many netizens feel that the grinding banquet is very exaggerated, in fact, this data is not exaggerated at all, and the local volcanic eruption will indeed cause such a big phenomenon.

The volcano had already begun to erupt on the morning of the 14th, and by the afternoon of the 15th, a second violent eruption occurred. Volcanic eruptions can have a lot of bad effects, such as eruptions that cause a lot of ash, and in addition to this, there will be some water vapor and gases, which will enter the high altitude and form very large clouds above the high altitude. On the night of the 15th, the ash continued to fall, and the local communication network was greatly disrupted.

The volcano began to erupt on December 20, 2021, and continued to erupt for several days, as the volcano had done a long time ago. In addition, volcanic eruptions can cause a series of hazards such as heavy rain, floods, tsunamis, and strong winds, so local people should be prepared in advance to ensure their own safety.

It can last for up to several years. Generally, after the volcano wakes up, the eruptive activity period will be poor, and the pre-manuscript void will last for several weeks or months. The eruption of the Tonga volcano is still being observed, and it is uncertain whether it has reached its peak.

Volcanic eruptions can last for several years, and the continuous eruptions of volcanoes can cause **, which will have a very serious impact on people's personal safety.

Normally, it lasts up to a month, and their sustained outburst requires a certain amount of energy, which can generally be depleted within a month.

Long lasts for several years. Individuals wake up and erupt actively, lasting for weeks or months. The eruption of the volcano in Tonga is still under investigation, and Gai Hui is not sure whether it has reached its peak.

On January 15, local time, an underwater volcano erupted in Tonga, an island nation in the South Pacific. Eleven hours later, the tsunami had already begun to hit Japan. It was probably the strongest eruption in 30 years, and the eruptions have not stopped, and the tsunami caused by the eruption has swept across the Pacific region.

In addition, the impact of its huge volcanic ash on the global atmosphere may appear in six months, so the impact of this volcanic eruption is very large. When the volcano erupted, the local area was also affected, for example, the volcanic ash fell all over the ground, seriously affecting people's lives. In addition, it is an island country that relies mainly on fishing, but now the volcanic eruption has affected the fishing industry.

The impact on the local economy is severe.

Although the volcano erupted underwater, the impact on the local economy was relatively large. After all, this is an island country, and the area is relatively small, probably relying on fishing for a living. However, after the eruption, fishing became more difficult due to the change in temperature.

In addition, volcanic ash will also fall on the surface of the sea, affecting people's vision. So the local economy may be affected somewhat, but international organizations will also help. So netizens don't have to worry, after all, this matter belongs to all mankind.

It affects people's travel and daily life.

The eruption of this volcano is menacing, so it also has some impact on people's lives. When a volcano erupts, the heat of the eruption smoke is as high as 10,000 meters, so the area of influence is very wide. Even if it is underwater, the lives of the residents will still be affected, so residents must pay attention when traveling, wear masks, and pay attention to protection.

And this volcanic eruption will also have a global impact and may cause a tsunami.

Summary. Nowadays, there are more natural disasters, so people must learn some first aid measures, so that they can play a role at a critical moment and not lose their lives.