Signs of Impending Volcanic Eruption

There are many signs to know of an Impending Volcanic Eruption.

Can you predict a volcanic eruption?

* Volcanologists can predict eruptions—if they have a thorough understanding of avolcano's eruptive history, if they can install the proper instrumentation on a volcano well in advance of an eruption, and if they can continuously monitor and adequately interpret data coming from that equipment.

Here are the 10 Signs Of Impending Volcanic Eruption:

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

2.Increased steaming activity; change in color of steam emission from white to gray due to entrained ash.

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://likeavirginis.wordpress.com/2015/01/31/signs-of-an-impending-volcanic-eruption

https://www.pbs.org/wgbh/nova/vesuvius/predict.html