Which is the world's largest active volcano ? It is generally believed that among the volcanoes with frequent eruptions, the Maonaroa volcano located in Hawaii is the largest. This volcano is more than 4,205 meters above the Pacific ocean surface, and is the highest peak in the Pacific Ocean. However, the volcano is more than 6,000 meters deep under the ocean surface. The sum of the two shows that the height of this volcano exceeds 10,000 meters, which is more than 1,400 meters higher than Mount Everest. Therefore, many people believe that if we look at a single mountain, the Maunaroa volcano is the highest peak in the world. Its dome length and width are 120 kilometers and 103 kilometers respectively, making it one of the largest isolated mountains in the world. Geologists believe that its mountain base accounts for more than half of the entire Hawaiian archipelago.
This is an extremely huge volcano, and it is also one of the most frequent eruptions in the world. 38 years ago, in March and April 1984, this volcano had a large eruption, and the eruption of lava was spread over more than 8 kilometers around the island. According to Reuters on November 28, news from US Geological Survey said that the Maunaloa volcano began to erupt on the evening of November 27, and lava flow formed a small lava lake on the top of the mountain. The eruption has not stopped to this day, and there have been many earthquakes in the local area. The largest magnitude of is 4.2.
Since Mauna Loa is the largest active volcano in the world, its eruption has attracted the attention of some international media. But in fact, the Kilauea Volcano, also located in the Hawaiian Islands in the United States, also showed signs of eruption on the evening of the 27th. This volcano is also a world-famous active volcano. It is located in the southeast of the Hawaiian Islands and is one of the largest and most spectacular volcanoes in the world. The two major active volcanoes in the world erupt at the same time, indicating that geological activities in the central Pacific region are becoming increasingly active.
However, the recent eruption is not only the two volcanoes in the Hawaiian Islands. On November 27, the Chilean National Geological and Minerals Administration issued a report saying that , the Viliarica volcano in the south of Chile, showed signs of eruption. Lava has emerged at the crater of the top of the mountain, white smoke rolled up from it, and seismic activity has also increased frequently.
Villarica Volcano is one of the most active volcanoes in South America. It is located on the Pacific Rim Volcano Belt. It has the world's second largest volcano chain, of which about 500 volcanoes have the possibility of eruption. Geologists believe that this volcano has the possibility of explosive eruption.
However, the destructiveness of this volcano is smaller than that of the Taobo volcano in New Zealand . Taobo volcano is usually called the Taobo supervolcano, located in the center of the North Island of New Zealand. It is the largest supervolcano in the South Pacific region. North Island largest lake Taobo Lake is actually the crater of this volcano.
But many geologists believe that the entire North Island of New Zealand was formed by magma "spouted" by this volcano. The most recent VEI-8-level volcanic eruption came from this volcano. It happened 26,500 years ago, and once had other negative impacts on the climate and ecological environment of the southern hemisphere. There was also a VEI-7-level volcanic eruption in AD 230.
However, this volcano has also become active recently. The New Zealand Earthquake Bureau claims that the earthquake that monitored the Taobo Crater will hardly stop. On the evening of December 1 alone, there were 21 small-scale earthquakes. The source came from a depth of 2-5 kilometers, indicating that the underground magma is rising. Some geologists believe that this supervolcano is on the verge of an eruption.
These volcanoes have erupted or have shown signs of eruption. In addition, there have been many earthquakes of magnitude 7 or above since the second half of this year. What is going on inside the earth? It is obvious that geogeological activities are in an active period, with magma and plate activities intensifying, and people need to strengthen prevention measures for large-scale volcanic eruptions and earthquakes.
Reference:
"China News Network" article on October 28, "The world's largest active volcano begins to erupt, the United States upgrades its warning level to "warning""
"Beijing Youth Network" article on November 27, "Yellow Warning! Signs of active volcanoes are here》
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