Eruption Precursors At Taal
- Increase in frequency of volcanic quakes with occasional felt events accompanied by rumbling sounds
- On the Main Crater Lake, changes in the water temperature, level, and bubbling or boiling activity on the lake.
Before the 1965 eruption began, the lake's temperature rose to several degrees above normal. However, on some eruptions there is no reported increase in the lake's temperature. On some eruptions, the dissolution of acidic volcanic gases into the lake has resulted in the death of large numbers of fish and animals.
- Development of new or reactivation of old thermal areas like fumaroles, geysers or mudpots
- Ground inflation or ground fissuring.
- Increase in temperature of ground probe holes on monitoring stations.
- Strong sulfuric odor or irritating fumes similar to rotten eggs.
- Fish kills and drying up of vegetation
Read more about this topic: Taal Volcano
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