Taiwan, Canada and U.S. A team of researchers got a link between the water cycle and earthquake time in Taiwan. In his paper published in the progress of science, the group describes its study of the water cycle in Taiwan and why it appears to be related to the time of earthquake.
This work started when one of the team members saw that big earthquakes in Taiwan were often in dry weather. Taiwan is under heavy rain and continuous tyzoon every year between May and September.
In other months, the amount of rain is very low. Pre-research has shown that due to dramatic changes in the amount of rain, the level of ground water changes dramatically.
In this new effort, the researchers thought that the level of ground water is reduced, which leaves empty cavity under the ground, may be behind some of the many earthquakes experienced by the country.
To find out, he collected both earthquake and rain data for the country, in some cases going back up for several hundred years. They allow satellite data which allowed to measure water storage on the island.
Researchers found that swelling activity was before the beginning of monsoon season during the dry season, especially during February, March and April during the dry season. He also found that seismic activity was the most calm from July to September-was usually the biggest part of the year.
Researchers also found that due to the fall below the bottom of low water during the dry season, gradually increased the obstacles of the earthquake as a result of the land.
He also found that there were various factors involved in earthquakes on east of West versus island. There was another complex pattern in the earthquake on the east side of the island, and less related to the weather.
Researchers noticed that the annual stress can contribute deep stress for the land under the island which are sometimes resulted in the breakdown of large defects, which are some big earthquakes which sometimes do rocks. Their conclusions can affect other parts of the world, which experiences dramatic fluctuations in the rain every year.