In 1908, an asteroid impacted near the river and later became known as the Tunguska event.

From July to October, there is a summer low, interrupted by a rise in the level to 5.5 m during floods, which can be from one to four per year.

The average annual water consumption at the mouth is 1587.18 m3/s,[2] during summer floods it reaches 35,000 m3/s.

The ice drift lasts 5-7 days in the upper reaches and up to 10 days in the lower reaches, passes violently, with congestion the level rises by 29.7 m. Winter nutrition is weakened due to the location of the river basin in the permafrost zone and reaches the lowest values of 3-15 m3/s, the total winter runoff is 11% of the annual.

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