PHIVOLCS Update for Mayon Volcano, 25 February 2018. - PH Trending

PH Trending

Latest Philippine news, trending stories about people, politics, sports, viral videos, technologies & more...

Breaking

Post Top Ad

Sunday 25 February 2018

PHIVOLCS Update for Mayon Volcano, 25 February 2018.

PUBLIC ADVISORY: Notice of raising Mayon Volcano’s status from Alert Level 3 to Alert Level 4 as of January 22, 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 25 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 condition for the past 24 hours was characterized by a short lull that was followed by lava collapses, generally quiet degassing, weak lava fountaining and effusion and degassing from the summit crater. Between 7:23 AM and 2:02 PM yesterday, five (5) episodes of lava-collapse pyroclastic density currents (PDC) were visually observed on the Miisi, Basud and Bonga-Buyuan Gullies within 4-5 kilometers of the summit crater. Sporadic activity at the summit resumed at 2:56 PM and generated ash plumes 100-500 meters above the summit that drifted to the southwest. In the evening, lava effusion from the vent was observed to continue feeding 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 one hundred twenty-three (123) volcanic earthquakes and two (2) rockfall events were recorded by Mayon's seismic monitoring network. Sulfur dioxide (SO2) emission was measured at an average of 2070 tonnes/day on 23 February 2018. Deflation of the lower slopes that began on 20 February was recorded by electronic tilt, consistent with the transition to quiet lava effusion at the summit crater, a brief lull and resumption of sporadic fountaining. Nonetheless, overall electronic tilt and continuous GPS data indicate that the edifice is still swollen or inflated relative to November and October 2017, consistent with campaign Precise Leveling data acquired this week.


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

No comments:

Post a Comment

Post Bottom Ad

Pages