Earthquakes on Sakhalin are not a rare occurrence.
The intensity of an earthquake is typically measured on a 12-point scale.
The region generally experiences several weak earthquakes a year (grade 3-4), which do not cause any serious damage.
You can track seismic activity on Sakhalin at https://eqalert.ru/
In the event of an earthquake, if possible, exit your building immediately. Be mindful of bricks, glass, and other objects that may fall from above. Once outside, move to an open space as far from the building as possible. Beware of dangling wires. If you cannot leave the building, find a safe place away from windows and avoid using the elevator.
Serious earthquakes are rare on Sakhalin.
Moderate earthquakes (grade 5-6) occur 10-25 times per 100 years. During a moderate earthquake, buildings may shake, resulting in broken dishes and peeling whitewash. Intensity 7 earthquakes occur 4-6 times per 100 years. These earthquakes may cause buildings to crack and furniture to move. 8-9 magnitude earthquakes can happen 1-3 times in a century. In the event of a 8-9 magnitude earthquake, walls will partially collapse, rocks will fall, and it will become very difficult to stay on one’s feet.
More powerful shocks are almost unheard of on Sakhalin.
Tsunamis, large waves caused by earthquakes, can present another risk to Sakhalin. Be particularly cautious of major earthquakes when visiting small islands and the coastal zone. If you are near the sea in the event of an earthquake, leave the coastal zone as quickly as possible and look for high ground.
Lastly, volcanoes may become active. If you are in the eruption zone, try to find shelter. Close any doors and windows to protect yourself against dust and hot ash.
If you cannot find shelter, find high ground away from mud and lava flow.
During a volcanic eruption, toxic gases and ash are released into the air. Protect your lungs by breathing through a respirator, face mask, or wet cloth. You should also protect your eyes by wearing glasses.