Mayon Volcano in Albay is ripe for another eruption, Phivolcs director Teresito Bacolcol warned on Thursday. For more TeleRadyo videos, click the link below: https://bit.ly/TeleRadyo2022_2 To watch the latest updates on COVID-19, click the link below: https://www.youtube.com/playlist?list=PL7amYNiWriCxDMQr0qW4Q_QS25yEr6PCT For more TeleRadyo full episodes, click the link below: https://www.youtube.com/playlist?list=PLgyY1WylJUmgJC37ssz2eLnr18Tn7Plid Subscribe to the ABS-CBN News channel! - http://bit.ly/TheABSCBNNews Watch the full episodes of TV Patrol on iWantTFC: http://bit.ly/TVPatrol-iWantTFC Visit our website at http://news.abs-cbn.com Facebook: https://www.facebook.com/abscbnNEWS Twitter: https://twitter.com/abscbnnews #TeleRadyo #ABSCBNNews #LatestNews

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From the history po nitong Mayon, is it ripe for another eruption?

Yes, yung Mayon, yung recurrence interval ng pagputok niya usually between 3 years to 10 years.

So the last time it erupted was in 2018, so that's like 5 years ago. So yun po yun, the soonest it would erupt would be 3 years.

Ah okay, so which means na nandun na tayo sa stage na pwede na talagang mag-erupt ito dahil it's been 5 years. January 2018 po ito eh?

Yes that's right. So 2018 yung last na nag-erupt. Actually we're looking at two possible eruptions here. It would be yung 2014 eruption.

So it's following the 2018 eruption, it proceeded to magmatic eruption. Yung 2014 kasi nag-rockfall and then nagkaroon ng lava flow, nag-stop afterwards.

So sana ganito yung mangyayari this time kasi kawawa naman yung mga kapabayan natin. We're hoping na ito nga yung 2014 event.

Sir yung mga ganitong active volcanoes, katulad na lang po ngayon, can we predict yung mga approximate dates kung kailan sila maaaring magkaroon ng unrest?

Because ano po ba ang cost nito? Is this pressure release?

Tamang po kayo. Pressure release rin po yan kapag as the magma goes up, mag-release yung pressure niya and that promotes de-gagging.

So mas mabilis, this would promote volcanic activity, volcanic eruption. So pressure release, isa yan sa mga factors kung bakit mag-erupt yung volcano.

Ngayon, tatlong vulcan yung magkasabay. Wala pong kaugnayan yung isang vulcan sa activity ng Taal with the activity of Mayon and the activity of Canlaon.

Opo. Director yung dalawang events. Yung ash fall, how far ang nararating nitong ash fall at saka yung rock fall. Malalaki daw yung inilalabas. Can you tell us more about it sir?

Yes. Mga boulders yung inilalabas niya. Yung rock fall, hanggang doon siya doon sa at least one kilometer from the summit of the crater, yung PD6 pa lang sa slope niya and it's one kilometer from the summit.

Yung rock fall, nasa upper slopes lang po yan.

Yung boulders po, yun po ba yung one kilometer ang inaabot?

Yung PD6 po, yung pyroclastic density current or pyroclastic flow.

Wala pang lava o may lava na?

Wala pa po. Wala pa.

Sir, pare-pareho po ba ang mga activities na nangyayari sa isang vulcan? O ito po ba iba-iba rin, katulad na lang po na mountains are built differently?

Yes. Magkakaiba po sila. Magkakaiba po yung behavior. For example, yung Taal volcano, it's spewing out 5,718 tons per day of sulfur dioxide.

Kapag ito yung mangyayari sa mayon, that would be hazardous eruption na yun. Pero hindi ito nangyayari sa Taal.

So ang baseline ng Taal just be 500 tons per day. Yung baseline niya.

Kapag aakyat na yan, mas mataas pa dyan like dito, 10 times hazard eruption na. But for Taal, wala pa. We're still on alert level one.

So isa-isahin po natin yung latest sir kasi tatlo po yung may naranasang pag-aalburoto ngayon. Sa Taal, ano po ang latest natin according to PHIVOLCS?

Sa Taal, it's still on alert level one. Since last week, mayroon po tayong volcanic tremor na record. Still, hanggang ngayon mayroon tayong volcanic tremor.

Pero mahina lang po ito. The degassing activity is still active. Yesterday, the Volcano Island main crater spewed out po siya ng 2,400 meters high na steam.

And then as I mentioned earlier, yung sulfur dioxide niya nag-emit po siya ng 5,718 tons per day which is lower than the 7,680 per day that we observed 2 days ago.

Sa Mayon, ano po ang latest?

Again, sa Mayon, yan nga po. We raised the alert level from alert level two to alert level three because of the 98 rockfall events that we registered 5 a.m. yesterday and 5 a.m. kanina.

And then yung tatlong pyroclastic density current na nakita namin this morning. And this afternoon, mayroon po tatlong pyroclastic density current event na nangyari. So in total, 6 na within today.

Director, when you raise the alert level from one to two or two to three, wala pong kinalaman yung hazardous gases na ini-emit ng isang vulcan as one of the basis for raising the alert level?

Yes. Isa yan sa mga parameters na tinitingnan natin. Yung pag-emit ng volume of hazardous gases that the volcano is emitting. That's one of the parameters that we look at.

Pero hindi lamang yan, mayroon pa tayong other parameters like yung inflation, nag-inflate pa, namabagata yung vulcan, yung number of earthquakes. Isa din yan sa mga parameters na tinitingnan natin.

Kasi po medyo marami-rami ng mga bayan sa Batangas sa paligid ng Taalang na apektohan. So I guess we were wondering, bakit alert level one pa rin siya?

Again, as I've said, hindi lang SO2 flux yung tinitingnan natin. We're also looking at the seismicity. We're also looking at yung ground deformation, kung namamabagaba siya o hindi.

Yung tremors po, how often o ganoon na katindi, kalapit, kafrequent yung tremors na nararamdaman sa Taal and Mayon?

Yung tremors sa Taal, isa lang since June 2. And then sa Mayon naman, isa lang, dalawa lang din since June 5 until today.

So yan ang isa sa mga tinitingnan natin kapag nag-increase yung seismicity, yung volcanic earthquakes. Again, there's an increase in sulfur dioxide emission dito sa Mayon.

Mayon, then we might place alert level four. Kaso yung SO2 emission, it's way below the background level, yung normal level, which is 500 tons per day. But yesterday, around 300 tons per day lang yung limit niya.

Sir can you educate us doon sa effects ng weather at mga seismic activities? Paano ito nakaka-exacerbate o nakakatulong ba ang weather natin sa pag-dissipate kunyari ng mga vog and smog?

The vog would be transported to another place. Kapag maraming tao, if the place is depopulated, maaamog nila yung masangsang na usok. And it's quite dangerous kasi sulfur dioxide is acidic.

One last na lang po pahabol. Based on all the signs, the symptoms, the behavior of Mayon, maaari po ba na kagyat na mag-alert level four ito mula sa three?

Again, for now, tinitingnan namin yung sulfur dioxide, yung SO2 o yung seismicity. Mababa pala yung seismicity niya. Again, as I've mentioned, we only recorded two volcanic earthquakes from June 5 to June 8.

And the sulfur dioxide is way below the normal level, yung background level niya. So again, tinitingnan, we're closely monitoring Mayon volcano and if there are changes in the monitored parameters, then we will face an alert level four and we'll inform the public.

And we can see all this sa PVOC's Facebook page?

Tama po. Tama.

Sorry. Isang mabilis na tanong lang po Dr. Bacolkol before we let you go. Does it follow na pag magkakaroon ng eruption, ang earthquake during this time ay malakas?

Yung earthquake around the volcano, volcanic earthquake, talawag po kasi we have two types of earthquakes, the tectonic earthquake and the volcanic earthquake.

So yung volcanic earthquake, yan yung damage during eruptions or prior to an eruption. Usually, ang makakaramdaman nito would just be people around the vicinity of the volcano.

Very, very illuminating. Thank you, sir. Maraming maraming salamat po. We appreciate your time and all the information you're giving us, doctor.

Thank you, too, po.

Thank you, po. Dr. Teresito Bacolkol, ang director ng PVOC, sa ating nakausa para ma-update nga po tayo dun sa nangyayari sa Taal, sa Mayon, at sa Canlaon na sabay-sabay. Ibang term naman daw ng pag-aalboro to. Ano ulit yan?

Nagmamarakolyo.

O, nabadrip niyong araw na ito at masusunod na araw.

Nagpaparamdam.

Oo, nagpaparamdam siya. Inat ang ulo niya. Magbabalik po maya-maya ang Pasada sa Teleradyo.

Thank you, po.