PHIVOLCS reported that unrest at Taal continued during 27 April-4 May.
Low-level background tremor that had begun at 0905 on 8 April continued, along with 2-26 daily low-frequency events and 5-37 daily volcanic earthquakes during 28 April-2 May.
One hybrid event was detected during 28-29 April.
Diffuse steam plumes from fumarolic vents in Main Crater rose 5-10 m on most days.
Average daily sulfur dioxide emission rates were in the 1,452-3,191 tonnes per day range.
Upwelling of hot volcanic fluids in the crater lake was accompanied by steam plumes that were 300-600 m tall on 27 April, 30 April, and 4 May.
The Alert Level for Taal remained at 2 (on a scale of 0-5).
PHIVOLCS strongly recommended no entry onto the island, and access to the Main Crater and Daang Kastila fissure (along the walking trail) was strictly prohibited.
Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)