CLEAR VIEW A small cloud of steam rises from Taal Volcano, as seen from Tagaytay City—ROBERT JAWORSKI L. ABAÑO/INQUIRER FILE PHOTO
LUCENA CITY – Volcanic earthquakes and tremors continued to be detected at Taal Volcano in Batangas province, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported on Saturday.
In its bulletin, Phivolcs said at least seven volcanic earthquakes were recorded over the last 24-hour period. The series of quakes were accompanied by six volcanic tremors that lasted five to eight minutes.
Data released by the BSP on Tuesday showed the public sector’s foreign borrowings from July to September this year went up by 36 percent from the $2.81 billion in the same period last year.
The federal and state governments’ tax revenue reached a total of 86.2 billion euros ($93.54 billion) last month, according to the ministry’s monthly report.
Article continues after this advertisementPhivolcs defines volcanic earthquakes as those “generated by magmatic processes or magma-related processes beneath or near an active volcano.”
FEATURED STORIES NEWSINFO House honors Soraya Alonto Adiong: 'A true mother to Lanao del Sur' NEWSINFO Rainy New Year’s Eve expected in some parts of PH NEWSINFO Lanao matriarch Soraya Alonto-Adiong dies“Unlike tectonic earthquakes that are produced by faulting, volcanic earthquakes are directly produced by many processes and are therefore much more varied in characteristics,” the agency explained.
READ: Surviving dangerous places during an earthquake
Article continues after this advertisementVolcanic tremors, on the other hand, are “continuous seismic signals with regular or irregular oscillations and low frequencies (typically 0.5 – 5 Hz) that can last for more than a minute.”
Article continues after this advertisementThe Phivolcs added, “Tremor can be caused by different processes inside the volcano, including resonance triggered by magma or magmatic gas flowing through cracks and vents, successive overlapping low-frequency earthquakes, and eruptions of magma.”
dragonara casino online Article continues after this advertisement Weak emissionOn Thursday, state volcanologists detected seven earthquakes and six tremors, four tremors on Wednesday, and 11 earthquakes along with seven tremors on Tuesday.
From Dec. 20 to 23, the volcano recorded 10 earthquakes and 18 tremors.
Article continues after this advertisementDuring the latest observation period on Friday, Phivolcs noted the emission of 1,181 metric tons (MT) of SO2 from Taal Volcano’s main crater, which only rose to 300 meters high.
The Phivolcs classified the latest spewing activity of the volcano as “weak emission.”
There were no reports of upwelling hot volcanic fluids in the main crater lake of Taal Volcano Island, which sits in the middle of Taal Lake.
No volcanic smog, or “vog,” was also observed during the latest monitoring period.
Taal Volcano is still under alert level 1 (low level of volcanic unrest), Phivolcs said.
The agency reminded the public that Taal Volcano remained in an “abnormal condition” and “should not be interpreted to have ceased unrest nor ceased the threat of eruptive activity.”
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READ: Phivolcs logs 51 tremors at Taal Volcano in 24 hours; Alert level 2 stayscrown89
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