- Taiwan is the area with the most frequent earthquakes in China. None of them are
Taiwan Island itself is formed by the squeeze of the Philippine plate and the Eurasian continent plate. The collision and squeeze of the two major plates cause large-scale orogenic movement at sea. The highest mountain in Taiwan is Yushan, with an astonishing altitude of 3,952 meters. This is the fourth highest mountain in the world's island range, which is higher than the Taibai Mountain (3,771 meters altitude) in the Qinling Mountains in Shaanxi and Helan Mountain in Ningxia (3,556 meters altitude). Taiwan has a total of 265 peaks with an altitude of more than 3,000 meters, which shows how powerful the orogenic movement of the earth's plate is.
Taiwan is an integral part of China. The concern and understanding of Taiwan is something that every Chinese should do. Only by being clear about the various situations and knowledge related to Taiwan can we have a more correct understanding and understanding of Taiwan. In this article, it mainly describes the causes of the Taitung earthquake in Hualien and , as well as the situation and images of the Huadong Long Valley that I have seen.
The west side of Taiwan Island is many plains and basins, with towering mountains in the middle and narrow and long mountains and valleys on the east side. Seismic activities in Taiwan are frequent and dense, and most earthquakes are concentrated in the eastern and northeastern areas of Taiwan. There are obvious faults in the eastern part of Taiwan, and the energy of the earthquake is easily released, so the damage caused is actually not strong. If a major disaster-magnitude earthquake occurs in Taiwan, it will definitely be related to the central central mountain range . There is no sign of this situation at present.
Residents living in eastern Taiwan are already accustomed to earthquakes. Hualien has encountered strong earthquakes of magnitude 5 and above every year in recent years. The roads here are often damaged by earthquakes, and tunnels are protected in places where rocks are prone to falling. The houses are built relatively low and super tall buildings are not built. Visit some valley attractions. Protective safety helmets are standard equipment for tourists.
Taiwan belongs to the " Pacific Rim Seismic Belt ", which is directly affected by the small and active Philippine plate (the Philippines plate mainly affects the Philippines, Taiwan, and Japan), while Fujian and Guangdong regions in my country belong to the " Southeast Coastal Seismic Belt ", so they have little correlation with Taiwan earthquake . The chain movement of the subsequent plates of the Taiwan earthquake is more related to the earthquake in the Sea of Japan. The continuous large earthquake in Taiwan means that the Philippine plate activity is active and may extend and cause domino-like earthquake activities in Japan. If a high-magnitude earthquake occurs in Taiwan, Japan will be more afraid.
It is precisely because of the existence of Taiwan Island that the movement of the Philippine plate near the coast of China is blocked, which to some extent protects the coastal areas of mainland China from strong earthquakes. From this perspective, Taiwan Island is a treasure island, which has long protected the coastal areas of mainland China in terms of geological security.
In addition to being prone to earthquakes, the eastern region of Taiwan is also easily attacked by typhoon . The high cliffs on the coast bring a large amount of precipitation brought by typhoons in eastern Taiwan. There are traces of large mountain torrents and mudslides everywhere in the rivers and ditches in eastern Taiwan. Some huge stones were even pushed by the flood to the estuary. On both sides of the valley, many hillsides are quite steep, which are repeatedly twisted by typhoons and earthquakes. Most of the unstable stones on the mountain are swept into the valley, and the huge rocks in the valley are shocking.
- The area where the earthquake occurred in Taiwan this time is in the Coast Mountains and Huadong Longmen Valley. This is the granary of the eastern Taiwan eastern Taiwan
The area where the earthquake occurred in the eastern part of Taiwan this time is not the central and northern areas of Hualien, which are traditionally prone to earthquakes, but in the southern area near the boundary of Hualien City and Taitung County . The earthquake that just started occurred was in the "coast mountain range", and then continued the earthquake affected the Huadong Longmen Valley. A large number of aftershocks occurred in the Huadong Longmen Valley area later.
The topography of Taiwan Island is mostly large mountains that face north and south. The time span of these mountains is formed is very long. On the east coast of the Pacific Ocean, there is a towering coastal mountain range. On the west side is a fertile land that is very suitable for rice and crop growth. On the west side is closely connected to the huge central mountain range.
"Huadong Longitudinal Valley" This eastern longitudinal valley in Taiwan is sandwiched between the central mountain range and the coastal mountain range. It is named after the two counties of Hualien and Taitung. It is about 180 kilometers long from north to south, 2 to 7 kilometers wide from east to west, with an area of about 1,000 square kilometers, and an altitude ranging from 50 to 250 meters. The flat river valley and the mountains on both sides form a strong contrast.
Huadong Long Valley is protected by the mountains on both sides. The crops in the Long Valley can withstand the invasion of typhoons. The rivers flowing out of the high mountains provide sufficient water and mineral nourishment for the Long Valley. Taitung and Hualien are an area developed later in Taiwan. The local land is quite fertile and are an important production area for Taiwan to produce high-quality rice and economic crops.
Huadong Longitudinal Valley is also the main transportation channel in the eastern part of Taiwan. Because the coastal mountains are protected on the east side, the valley is flat and open. There are important highways , 9th Line, and the eastern trunk railway. In order to cross many rivers along the way, a lot of bridges are built. This longitudinal valley is narrow and long, running through the essence of Hualien and Taitung. It has a 158-kilometer valley corridor. There are many fields, villages and towns along the way, and the beautiful and tall mountains on both sides, and white clouds often float on the tops of the mountains.
Huadong Long Valley is also the main gathering area for the indigenous people in Taiwan. Among the fourteen indigenous groups in Taiwan, five indigenous groups live here, including Amei , Taya , Bunn, Taroko and Beinan people.
There are deep local customs and traditions of Taiwan’s indigenous people. Many of the skills and cultures left over from the indigenous people are very attractive. The indigenous people are versatile, able to sing and dance, and have rich and colorful national stories.
Because there are live geological faults nearby and can be directly observed, the mountain height here can be measured every year to show signs of elevation. Active zoning activities have enabled some areas of the valley to have hot springs and geothermal resources, and some places are even famous for hot spring vacations.
The epicenter location of this recent earthquake is quite special, and it is an area where there has been no earthquake for a long time. The earthquake occurred continuously at the junction of Taitung County and Hualien City. These two areas are divided by coastal mountains and are deeply intertwined from north to south and are currently affected by disasters.
strong earthquakes occur in the valley. seismic wave will rush and rebound in the valley, which will aggravate the destructive power of the seismic waves. Seismic buildings can withstand seismic waves from one direction, but seismic waves rebound from multiple different directions will cause greater damage to the building structure. The earthquake wave rebounds like the water ripple rebound in the pool. Although the buildings in Taiwan have high earthquake defense ratings, this time it still caused damage to many viaducts and buildings, and the trains were shaken and derailed.
Huadong Long Valley area is a region with a small population in Taiwan. With long-term earthquake fortification and disaster prevention awareness, although there are construction and road losses this time, and there are many landslides in the nearby mountainous areas, there are few casualties, which is a great blessing among misfortune.
The earthquake in Huadong Mountain Valley in Taiwan has come to an end, and there may be some aftershocks in the future. However, the movement of the earth's plates and the volcanic movement caused by the incident have continued to increase activity in recent years. In the future, we still need to continue to popularize and strengthen earthquake prevention and disaster reduction content. Nature has its own laws and needs to be respected, and people also need to continue to fight against it.
