The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported continuing unrest at Taal during 10-17 December. Daily emissions that were mostly diffuse rose 400-600 m above the crater rim and drifted SW and WSW. There were 3-10 daily occurrences of volcanic tremor during 10-12 December, with highly variable periods of between three minutes to six hours.
Two volcanic earthquakes were recorded on 15 December. Sulfur dioxide gas emissions averaged 2,825 tonnes per day (t/d) on 11 December and 5,800 t/d on 14 December. An advisory issued at 1745 on 16 December stated that of sulfur dioxide emissions had reached 8,322 t/d, higher than the year’s average of 6,057 t/d.
The Alert Level remained at 1 (on a scale of 0-5); PHIVOLCS reminded the public that the entire Taal Volcano Island was a Permanent Danger Zone (PDZ) and recommended that the Main Crater and areas along the Daang Kastila fissure should remain prohibited.
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)
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From: Global Volcanism Program, 2024. Report on Taal (Philippines). In: Mayberry, G (ed.), Weekly Volcanic Activity Report 11 December-17 December 2024. Smithsonian Institution and US Geological Survey.