Rainfall also has a great relationship. Looking up the rainfall data of the last five years, we can see that the rainfall of August 22-23, 2017, August 2-3, 2019 and August 18, 2020 all exceeded the once-in-50-year rainfall, which is also the reason for the increase of geological disasters in these three years. It can be seen that the rainfall greatly affected the number of geological disasters in that year.
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