4/30/2023 0 Comments Cst em simulationTogether with her colleagues from the Ruhr University in Bochum in Germany, she has discovered that the weight of the large glaciers on the earth slows down the movement of the continental plates.Īs proof: she demonstrated with the help of computer simulations that the seismic rebound that Scandinavia experienced temporarily 9,000 years ago coincided with the rapid melting of the Fino-Scandinavian ice cap that covered the entire region at the time.Īccording to this simulation, the vertical pressure exerted by the ice could have prevented the spontaneous sliding of continental plates along geological faults. "The ice is holding back large parts of the Earth's crust locally," says geophysicist Andrea Hampel. However, scientists are wondering about the impact of glacial melt on the Earth's mantle. Since this study, no team has been able to demonstrate a convincing link between short-term climate change and the increase in the number of earthquakes in the world. "We have shown for the first time that the reverse is true, that the evolution of the climate can affect in return the movement of tectonic plates." Iaffaldano wrote in Earth and Planetary Science Letters that the closing and opening of ocean basins, or the emergence of high mountains like the Andes or Tibet, are geological processes that affect climate. At the time, it reported that it had found that the intensification of the monsoon in India had accelerated the movement of the Indian tectonic plate by 20% over the past 10 million years. This is according to the EM-DAT emergency events database, which compiled the occurrence and effects of 22,000 mass disasters worldwide in the 20th century.Ĭan we conclude that there is a causal relationship with the rise of human activities, as some experts suggest? The idea was first suggested in 2011 by an Australian research team led by geology professor Giampiero Iaffaldano. Their intensity would also have increased with more than 25 major earthquakes per year, double the previous periods. That figured doubled to 6.7 a year until the early 1970s, and was almost five times that in the 2000s. PARIS - Between 19, the Earth recorded an average of 3.4 earthquakes per year with a magnitude greater than 6.5.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |