Signs of Impending Volcanic Eruption

The importance of studying warning signs can help prevent potential human loss. By examining clues, scientists can develop a course of action and evacuation plan for people that live within the vicinity of an impending volcanic eruption.

1.Increase in the frequency of volcanic quakes with rumbling sounds; occurrence of volcanic tremors.

3.Crater glow due to presence of magma at or near the crater.

4.Ground swells (or inflation), ground tilt and ground fissuring due to magma intrusion.

5.Localized landslides, rockfalls and landslides from the summit area which not attributable to heavy rains.

6.Noticeable increase in the extent of drying up of vegetation around the volcano’s upper slopes.

7. Increase in the temperature of hot springs, wells crater lake near the volcano;

8. Noticeable variation in the chemical content of springs, crater lakes within the vicinity of the volcano;

9. Drying up of springs/wells around the volcano;

10. Development of new thermal areas and/or reactivation of old ones; appearance of solfatara.
Reference : https://scientiafantastica.wixsite.com/scientiafantastica/single-post/2017/12/08/signs-of-impending-volcanic-eruption

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