Panayam kay Division Chief Mariton Bornas ng Volcano Monitoring and Eruption Prediction Division ng Phivolcs patungkol sa update sa Bulkang Kanlaon

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Panayam kay Division Chief Mariton Bornas ng Volcano Monitoring and Eruption Prediction Division ng Phivolcs patungkol sa update sa Bulkang Kanlaon   For more news, visit:  ►https://www.ptvnews.ph/  Subscribe to our DailyMotion Channel: ►http://www.dailymotion.com/peoples-television-incorporated  Subscribe to our YouTube channel: ►http://www.youtube.com/ptvphilippines  Like our Facebook pages: ►PTV: http://facebook.com/PTVph  ►Rise and Shine Pilipinas: https://www.facebook.com/riseandshinepilipinas  Follow us on Twitter:  ►http://twitter.com/PTVph  Follow us on Instagram: ►https://www.instagram.com/ptvph  Watch our livestream on:  ►http://ptvnews.ph/livestream/ ►https://www.dailymotion.com/PTVPhilippines  Watch our News Programs, every Mondays to Fridays  Rise and Shine Pilipinas - 6:00 - 8:00 am Bagong Pilipinas Ngayon - 12:00 - 1:00 pm Sentro Balita - 1:00 pm - 2:00 pm Ulat Bayan - 6:00 pm - 7:00 pm PTV News Tonight -  9:30 pm - 10:30 pm  Saturday & Sunday: ►Ulat Bayan Weekend - 6:15 pm - 7:00 pm

Transcript

00:00Updates in Vulcan Canlaon, let's find out together with Mariton Bornas, Volcano Monitoring and Eruption Prediction Division Chief of PHIVOLCS.

00:11Good afternoon.

00:14Good afternoon to you, Ma'am, and to all of you listening.

00:18First of all, what are the latest activities that you have recorded from Vulcan Canlaon

00:26and how many volcanic earthquakes did you monitor within 24 hours?

00:34So, the level of unrest of our volcano is still high.

00:43After 24 hours yesterday, we recorded 337 volcano tectonic earthquakes.

00:53From midnight to 12 noon, we recorded 65 volcano tectonic earthquakes.

01:05Yesterday, we also measured the highest level of sulfur dioxide in Vulcan Canlaon.

01:14This is the highest level that we have recorded instrumentally

01:19when we measure volcanic gas in Vulcan Canlaon in 2009.

01:26It reached 9,985 tons per day.

01:30If we compare it to Mayon Volcano, for example, this is an eruptive sulfur dioxide emission of Mayon.

01:39But in Taal, this is very high.

01:42So, Ma'am, in your assessment and monitoring,

01:45is it possible for a volcanic eruption from Vulcan Canlaon?

01:49And when is it possible for this to happen,

01:51based on the activities that you have recorded from the volcano?

01:56Because our monitoring parameters are high,

02:00these are anomalous,

02:03the chance of a magmatic eruption increases.

02:08Our challenge is to monitor every day

02:13so that we can determine when the magmatic eruption that we are monitoring will continue.

02:22We cannot say for now when the time, day, week, or month

02:30when the eruption of the volcano will occur.

02:33We need to analyze and evaluate this every day,

02:38especially in a volcano like Vulcan Canlaon,

02:42where magma does not erupt for a long time.

02:47Magma does not erupt.

02:49The eruptions of Vulcan Canlaon since 1902

02:54are mostly phreatic or steam-driven eruptions.

03:00This is the eruption of the volcano

03:03because of the accumulation of steam

03:07here in what we call the hydrothermal or geothermal region below the volcano.

03:13When the volcano is pressurized,

03:16it can return to a phreatic or steam-driven eruption.

03:20So, the majority of the activity of Vulcan Canlaon is like this,

03:25steam-driven or phreatic eruptions.

03:28We will only have magmatic eruptions

03:34and not just instrumentally monitored magmatic eruptions.

03:39The last magmatic eruption of Vulcan Canlaon on record is 1902.

03:46This is a very weak magmatic eruption

03:51and only one lava flow was recorded when Vulcan Canlaon erupted.

03:57We do not have a history or experience in monitoring Vulcan Canlaon.

04:07What we can do is to compare

04:11or compare its eruption and unrest

04:17with other volcanoes that we have monitored.

04:20This is what we know from its geology

04:23and this is what we monitor every day.

04:28Okay.

04:29So, you're saying that this magmatic eruption

04:33can happen and we can't predict

04:37whether it will happen today, tomorrow, next week, or in the next few months.

04:41Is that so?

04:42That's right.

04:43Volcano monitoring is not like this.

04:47There is nothing we can do about it at the current level of science.

04:53We can only forecast what can happen

04:58based on our 24-7 monitoring of Vulcan.

05:03And you said that if this happens,

05:06the last major magmatic eruption was in the 1900s, right?

05:131902, if I'm not mistaken?

05:15That's right.

05:16So, it has been a long time since it erupted like this.

05:21Don't you think that the expected magmatic eruption

05:26will be quite strong?

05:30Because it's been a long time, let's say,

05:32that it has been sleeping or being quiet?

05:35We can't say for sure

05:37because the volcanoes have their own characteristics,

05:43especially when it comes to eruptive activity and repose.

05:49Volcanoes really breathe.

05:52It just so happens that in our highly active volcanoes,

05:56like the Mayon Volcano,

05:58its repose period is shorter.

06:01The Mayon Volcano is very highly active.

06:03The Canloan Volcano is active,

06:06but its magmatic eruptions have long repose periods

06:10and there are eruptions where a lot of materials are released.

06:17There are also eruptions where only a small amount is released

06:21and there are strong eruptions.

06:25But the Canloan Volcano is more dominant in lava flow activity

06:31because its edifice, the volcanic cone,

06:37is predominantly composed of lava flows.

06:42Although it also has explosive eruptions,

06:46it is dominated by lava flows.

06:50Okay, so what is the current effect of the volcanic activities

06:56that you mentioned to our countrymen who are near the Canloan Volcano?

07:02Do you have any advice for those who live nearby to evacuate?

07:11Okay, so in this kind of volcanic alert level,

07:16we should not enter a permanent danger zone.

07:21That is why it is called a permanent danger zone.

07:24There is still a risk of sudden eruptions,

07:30especially phreatic or steam-driven eruptions.

07:34Because even if we don't have magma,

07:36and we are at alert level zero,

07:42we just need steam to make it happen.

07:48And now that we have unrest,

07:52there is a higher chance of phreatic eruptions.

07:58When we have phreatic eruptions,

08:00we can experience volcanic hazards

08:04such as small pyroclastic density currents.

08:08These are the most lethal volcanic hazards.

08:11Ballistic fragments,

08:13these are the small stones from the bottom of the volcano.

08:17And volcanic landslides that can hit us.

08:23That is why in this kind of alert level,

08:26we need to evacuate those who live inside the permanent danger zone.

08:35Because we can have phreatic or steam-driven eruptions

08:40at any time without any warning or signs that this will happen.

08:46We need to look at our response measures.

08:52The LGUs and residents should be prepared for the next alert levels.

09:00For example, when we reach alert level 3,

09:03there will be an additional evacuation.

09:08Our residents and LGUs should be prepared to evacuate.

09:16Ma'am, in a state like this,

09:20what should and should not be done to our residents?

09:28For our LGUs,

09:31the LGUs have contingency plans.

09:35This is based on the alert level of the volcano.

09:40They need to execute their plans when the alert level rises.

09:47These are the response measures.

09:49Everything is planned.

09:51For our residents,

09:53we need to follow our LGUs

09:56when they execute their response measures

10:00such as evacuation and other measures.

10:05We also received additional advice from the LGUs.

10:13For example,

10:14if there is a volcano eruption

10:18and it rains heavily,

10:21we should expect that

10:23not only our predetermined evacuation area

10:29will be affected.

10:31We will probably have what we call

10:35scene-eruption lahars.

10:36These are the lahars that accompany the eruption of the volcano

10:41because it can quickly transform

10:45the volcanic rocks into lahars.

10:51Scene-eruption lahars are far away

10:55so we have to be careful when we go to the river.

11:00For our LGUs,

11:03we should appreciate

11:06if they observe or feel anything around them.

11:12We should ask our office

11:16because their observation is also important.

11:21If we experience sulfur dioxide in our residents

11:27and it is toxic,

11:29we should protect ourselves

11:32by wearing a mask.

11:34If this has a severe effect,

11:37especially on our vulnerable members of our community

11:41such as those who have heart disease,

11:44elderly, senior citizens,

11:46pregnant women, and pregnant women,

11:48we should contact our barangay health units

11:52or centers or nearby hospitals.

11:56Thank you very much, Mariton Bornas,

12:00Volcanic Monitoring and Eruption Prediction Division Chief of PHIVOLCS.

12:05Thank you very much. Take care.

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