PHIVOLCS Update for Mayon Volcano, 23 February 2018.

PUBLIC ADVISORY: Notice of raising Mayon Volcano’s status from Alert Level 3 to Alert Level 4 as of January 22, 2018.

PHIVOLCS: MAYON VOLCANO BULLETIN 23 February 2018 8:00 A.M.

PHIVOLCS has raised the alert level to Alert Level 4  in effect over Mayon Volcano. The public is strongly advised to be vigilant and desist from entering the eight (8) kilometer-radius danger zone, and to be additionally vigilant against pyroclastic density currents, lahars and sediment-laden stream flows along channels draining the edifice.

SUMMARY |  Alert Level 4 remains in effect over Mayon Volcano.

Mayon’s activity in the past 24 hours was characterized by generally quiet lava effusion, degassing from the summit crater and a brief, 200-meter tall lava fountain at 7:17 PM.  During daytime yesterday, between 5:49 AM and 5:03 PM, twenty-one (21) episodes of lava-collapse pyroclastic density currents (PDC) were visually observed on the Miisi, Basud and Bonga-Buyuan Gullies within 2-4 kilometers of the summit crater. At night, lava effusion from the vent continued to feed lava flows that have maintained fronts at 3.3 kilometers, 4.5 kilometers and 900 meters on the Miisi, Bonga and Basud Gullies, respectively, from the summit crater.


A total of seven (7) volcanic earthquakes and nineteen (19) rockfall events were recorded by Mayon's seismic monitoring network. Sulfur dioxide (SO2) emission was measured at an average of 1,459 tonnes/day on 22 February 2018. Electronic tilt and continuous GPS indicate that the edifice is still swollen or inflated relative to November and October 2017 due to pressurization by magmatic intrusion, consistent with campaign Precise Leveling data acquired this week.

Might also like:
- NBA Standing, Result and Schedule (2017-2018)

- PBA  Philippine Cup - Standing, Result and Schedule (2017-2018)

- Globe Prepaid | GoSakto Hottest Promo: GOTSCOMBODD90 + GOWATCH29
- Globe Prepaid | Call and Unli All-Net Text for 30 days that cost no more than PHP 100.00.
- GOSURFBE34 - is the cheapest GOSAKTO Promo of Globe that lengthens your DATA validity for 15 days.

Thanks for reading this article.

Was this helpful?

Like Us on Facebook: PH Trending News & Infos

If you find this information helpful, share it with others. Know someone who can use this information? Share this with them as well! Let’s spread the news