July 7
Almost a week after its phreatomagmatic eruption, Taal Volcano had a series of phreatomagmatic bursts that occurred at 8:47 a.m., 9:15 a.m., 9:26 a.m., and 11:56 a.m.
Taal Volcano also spewed a "grayish" plume that rose 300 meters above the main crater at around 5:18 a.m.
4:15 p.m., July 4
Taal Volcano's sulfur dioxide (SO2) has surged to a new high on Sunday, July 4, at 22,628 tonnes, exceeding the previous high of 14,699 tonnes on Saturday, July 3.
Related story: https://mb.com.ph/2021/07/04/taal-volcanos-sulfur-dioxide-anomalously-high-phivolcs/
8 a.m., July 4
In the past 24 hours, Phivolcs has recorded 31 low-frequency volcanic earthquakes and low-level background tremor that has persisted since April 8.
The emission of high levels of sulfur dioxide caused steam-rich plumes that rose up to 2.5 kilometers from the Taal's main crater.
Related story: https://mb.com.ph/2021/07/04/taal-volcano-logs-31-quakes-emits-2-5-km-steam-rich-plumes-in-past-24-hours/
8 p.m., July 3
Phivolcs warned communities surrounding Taal Volcano in Batangas against high levels of volcanic sulfur dioxide (SO2) emission which may lead to another eruption of the restive volcano.
It monitored a record-high SO2 emission rate on Saturday at an average of 14,699 tonnes per day.
Related story: https://mb.com.ph/2021/07/03/taal-volcano-emits-record-high-amount-of-sulfur-dioxide-may-lead-to-another-eruption-phivolcs/
5:45 p.m. to 6:15 p.m., July 2
The continuous upwelling of hot volcanic fluids within Taal Volcano's main crater has generated three-kilometer high steam plumes between 5:45 p.m. and 6:15 p.m., Friday.
It also caused the emission of volcanic smog or vog over the Taal Caldera region.
Related story: https://mb.com.ph/2021/07/02/watch-taal-volcano-emits-3-km-high-steam-plumes/
10:25 a.m., 10:47 a.m., 11:01 a.m., July 2
Phivolcs observed a series of phreatomagmatic bursts that occurred at 10:25 a.m., 10:47 a.m., 11:01 a.m. and produced short jetted plumes that rose 100 meters above the Taal main crater lake.
This was followed by the upwelling of hot volcanic fluids at the main crater lake on Friday afternoon.
Related story: https://mb.com.ph/2021/07/03/phivolcs-records-3-short-phreatomagmatic-bursts-in-taal/
8 a.m., July 2
Phivolcs continued to detect high levels of sulfur dioxide (SO2) from Taal causing volcanic smog or "vog" on the island and surrounding communities.
Related story: https://mb.com.ph/2021/07/02/taal-volcano-still-blankets-island-surrounding-areas-with-smog-phivolcs/
8:07 p.m., July 1
The upwelling of the Main Crater Lake began.
Between 6:26 p.m.- 8:20 p.m., July 1
Phivolcs recorded four short phreatomagmatic bursts in Taal Volcano. The phreatomagmatic bursts which lasted not longer than two minutes produced short jetted plumes that rose 200 meters above the Main Crater Lake.
Related story: https://mb.com.ph/2021/07/02/phivolcs-records-4-short-phreatomagmatic-bursts-in-taal-volcano-upwelling-of-main-carter-lake-ongoing/
7:21 p.m., July 1
Another smaller phreatomagmatic eruption has been observed. It lasted for about two minutes and generated plumes that reached 200 meters high.
Related story: https://mb.com.ph/2021/07/01/phivolcs-logs-2-small-phreatomagmatic-eruptions-in-taal-volcano/
6:26 p.m., July 1
Phivolcs recorded a “smaller” phreatomagmatic eruption that lasted for about two minutes and produced 200-meters high plumes.
Related story: https://mb.com.ph/2021/07/01/phivolcs-logs-2-small-phreatomagmatic-eruptions-in-taal-volcano/
3:37 p.m., July 1
Phivolcs issued a notice for the raising of the alert status of Taal from Alert Level 2 (increasing unrest) to Alert Level 3 (magmatic unrest).
“This means that there is magmatic intrusion at the Main Crater that may further drive succeeding eruptions,” the agency said.
It recommended that the Taal Volcano Island and high-risk barangays of Agoncillo and Laurel in Batangas be evacuated due to the possible hazards of pyroclastic density currents and volcanic tsunami.
Communities around the Taal Lake shore were also advised to take precautionary measures and be vigilant of possible lakewater disturbances related to the ongoing unrest.
Related story: https://mb.com.ph/2021/07/01/alert-level-3-raised-over-taal-volcano/
3:16 p.m., July 1
The Philippine Institute of Volcanology and Seismology (Phivolcs) said Taal Volcano generated a dark phreatomagmatic plume at its main crater that rose up to a kilometer-high.
The eruption was “short-lived” as it only lasted for five minutes.
Related story: https://mb.com.ph/2021/07/01/what-is-a-phreatomagmatic-eruption-phivolcs-explains/