(Eagle News) — Forty-two volcanic tremor episodes were monitored at Taal in 24 hours. The Philippine Institute of Volcanology and Seismology said the tremor episodes at the volcano, which remains on alert level 2, lasted for one to seven minutes. Low-level background volcanic tremor that began at 6:37 p.m. on March 10 lasted for approximately four and a half hours, PHIVOLCS said. It said also monitored were steam and sulfur dioxide emissions. The steam emission, […]
Tag: PHIVOLCS
PHIVOLCS raises alert level 2 over Taal volcano
(Eagle News) — The Philippine Institute of Volcanology and Seismology (PHIVOLCS) has raised the alert level over Taal. In an advisory on Tuesday, March 9, PHIVOLCS said the raising of the alert level from alert level 1 to 2 was because the volcano has been exhibiting increased unrest since Feb. 13. For instance, PHIVOLCS said the Taal Volcano Network (TVN) recorded a total of twenty-eight volcanic tremor episodes, four low-frequency volcanic earthquakes, and one hybrid […]
4.1-magnitude quake hits Negros Occidental early Sunday, March 7
(Eagle News) — A 4.1-magnitude earthquake struck Negros Occidental early Sunday, March 7. The Philippine Institute of Volcanology and Seismology said the quake, which hit at 1:32 a.m., had its epicenter nine kilometers northwest of Sipalay. It had a depth of 19 kilometers. No damage to property nor aftershocks were recorded.
10 volcanic quakes, 1 rockfall event monitored at Mayon; PHIVOLCS says “no magmatic eruption imminent”
(Eagle News) — Ten volcanic earthquakes and one rockfall event were monitored at Mayon in 24 hours. The Philippine Institute of Volcanology and Seismology said the quakes at the volcano, which remains on alert level 1, had a magnitude range of ML1.1 to ML3.1, with the strongest recorded at 7:41 am yesterday. That earthquake was felt at Intensity I in the center of the municipality of Sto. Domingo, Albay. Also monitored at Mayon were moderate steam […]
4.8-magnitude quake hits Sultan Kudarat
(Eagle News) — A 4.8-magnitude earthquake struck Sultan Kudarat on Monday, March 1. The Philippine Institute of Volcanology and Seismology said the quake, which hit at 6:51 a.m., had its epicenter one kilometer northeast of Columbio. It had a depth of 20 kilometers. The following intensities and instrumental intensities were reported: Reported Intensities: Intensity III- Tampakan, South Cotabato Intensity II- General Santos City Instrumental Intensities: Intensity IV – Koronadal City, South Cotabato Intensity III – […]
PHIVOLCS: 130 volcanic tremors, 28 volcanic quakes monitored at Taal; alert level 1 stays
(Eagle News) — Over 100 tremor episodes were monitored at Taal in 24 hours. Apart from the 130 volcanic tremors that lasted from one to five minutes, 28 volcanic earthquakes were monitored at the volcano, which remains on alert level 1. “Despite these, only weak steam-laden plumes were emitted by fumarolic activity at the vents of the main crater,” PHIVOLCS said. PHIVOLCS said temperature highs of 74.6°C and a pH of 1.59 were last measured […]
PHIVOLCS: 113 tremor episodes monitored at Taal in 24 hours; alert level 1 in place
(Eagle News) — Over 100 tremor episodes were reported at Taal in 24 hours. The Philippine Institute of Volcanology and Seismology said the 113 tremor episodes lasted for one to 34 minutes. “Despite these, only weak steam-laden plumes were emitted by fumarolic activity at the vents of the main crater” of the volcano, which remains on alert level 1, PHIVOLCS said. PHIVOLCS said temperature highs of 74.6°C and a pH of 1.59 were last measured […]
69 volcanic tremor episodes monitored at Taal in 24 hours; alert level 1 still in place
(Eagle News) — Sixty-nine volcanic tremor episodes were monitored at Taal in 24 hours. The Philippine Institute of Volcanology and Seismology said the episodes at the volcano, which remains on alert level 1, lasted for one to 61 minutes. “Despite these, only weak steam-laden plumes were emitted by fumarolic activity at the vents of the main crater,” PHIVOLCS said. PHIVOLCS said temperature highs of 74.6°C and a pH of 1.59 were last measured from the […]
5.2-magnitude quake strikes off Davao Occidental
(Eagle News) — A 5.2-magnitude earthquake struck off Davao Occidental on Wednesday, Feb. 24. The Philippine Institute of Volcanology and Seismology said the quake, which hit at 6:25 a.m., had its epicenter 318 kilometers southeast of Sarangani. It had a depth of 79 kilometers. No damage to property nor aftershocks were reported.
9 volcanic quakes, steam and sulfur dioxide emissions monitored at Kanlaon; alert level 1 retained
(Eagle News) — Nine volcanic earthquakes were monitored at Kanlaon in 24 hours. The Philippine Institute of Volcanology and Seismology said also monitored at the volcano, which remains on alert level 1, were steam and sulfur dioxide emissions. PHIVOLCS said the emission of white steam-laden plumes was moderate. Sulfur dioxide emission was also measured at an average of 587 tons on February 17. A slight inflation of the lower and middle slopes since June 2020 […]
17 tremor episodes monitored at Taal in 24 hours; alert level 1 in place
(Eagle News) — Seventeen tremor episodes were monitored at Taal in 24 hours. The Philippine Institute of Volcanology and Seismology said the tremor episodes monitored at the volcano, which remains on alert level 1, lasted for 60 to 360 seconds. The emission of steam-laden plumes was weak. “Temperature highs of 74.6°C and pH of 1.59 were last measured from the Main Crater Lake respectively on 18 and 12 February 2021,” PHIVOLCS said. PHIVOLCS said a […]
69 tremor episodes monitored at Taal in 24 hours; alert level 1 stays
(Eagle News) — Sixty-nine tremor episodes were monitored at Taal in 24 hours. The Philippine Institute of Volcanology and Seismology said the episodes at the volcano, which remains on alert level 1, lasted for one to five minutes. PHIVOLCS said weak steam emission was also monitored, while temperature highs of 77.1°C and a pH of 1.59 were last measured from the main crater lake on February 12. While a slight deflation around the main crater […]





