Massive Pyroclastic Flow Descends Entire Slope of Mount Semeru Volcano (Feb 13, 2026)

YouTube ^ | February 13, 2026 | afarTV

[SunkenCiv]

On the morning of February 14, 2026 (Local time), Mount Semeru in East Java, Indonesia experienced continued eruptive activity with multiple pyroclastic flows traveling down the volcano’s slopes. According to the Indonesian Centre for Volcanology and Geological Hazard Mitigation (PVMBG) and recent seismic monitoring reports, the volcano produced several eruption events and pyroclastic flow earthquakes throughout the afternoon. 

Massive Pyroclastic Flow Descends Entire Slope of Mount Semeru Volcano (Feb 13, 2026) | 9:30
afarTV | 564K subscribers | 178,660 views | February 13, 2026

[SunkenCiv]

• Mount Semeru [Smithsonian]

[SunkenCiv]

🔹 Multiple eruptions were recorded on seismic instruments in the early morning, including pyroclastic flow events with wave amplitudes noted on PVMBG’s seismographs.

🔹 Authorities maintain the volcano at Alert Level III (Watch) due to ongoing unrest and potential hazards.

🔹 PVMBG advises no activities within the Besuk Kobokan drainage and southeastern sectors up to 13 km from the summit, due to risk of pyroclastic flows, lahars, and lava avalanches.

👉 Mount Semeru (locally known as Mahameru) has a long record of near-constant volcanic activity and produces lava flows, ash plumes, and pyroclastic flows during eruptive episodes.

⚠️ Safety Note: Pyroclastic flows are extremely hot and fast-moving mixtures of gas, ash, and rock capable of destroying structures and posing life-threatening hazards to anyone in their path

[Omnivore-Dan]

Our Earth is a alive, and seems angry.

[DannyTN]

I love pyroclastic flows. They’re hot!!!

[9YearLurker]

But do they love you?

[DannyTN]

I don’t think so. They burn me bad.

[9YearLurker]

An old story.

[DannyTN]

Very old, the unrequitted love of fire nymphs.

[9YearLurker]

Haha!

[Eli Kopter]

That is what they do, and when there is slope failure, the cloud comes down at close to 500 MPH and is poisonous, Sulfuric, and hundreds of degrees. Very little will survive .

[Hot Tabasco]

No mention of the CO2 these active volcanoes are putting into the atmosphere

[GreenHornet]

On the morning of February 14, 2026 (Local time), Mount Semeru in East Java, Indonesia experienced continued eruptive activity with multiple pyroclastic flows traveling down the volcano’s slopes.

I hate it when that happens.

[SunkenCiv]

Other than that, though... /rimshot

Years ago not everyone heeded the evac call when Monserrat’s volcano popped a bit. There were news vids of charred remains being pulled off by pretty brave first responders when things died down.

[SunkenCiv]

Hey, that doesn’t fit the narrative, so you just cut that out right now. 😁

[SunkenCiv]

Remarkably, some people regard this as a reason for tourism. I’m perfectly fine with online videos of this. I’d like to visit the excavations at Thera, but A) too crowded during the season and B) Murphy’s Law.

[SunkenCiv]

So’s the swamp. With a thousand eyes. And all of ‘em watchin’ you...

[Magnum44]

[rktman]

Stoopid glowbull warming.

[SunkenCiv]

Or Gorebull. 😆

[Paul R.]

If you run the numbers, in a typical year, human activities contribute more CO2 to the atmosphere than do volcanoes. Volcanoes also emit sulfur aerosols and particulates, which tend to cause cooling early on, but CO2 is the longer term effect.

Volcanoes are big emitters, but, there are billions of us. Our contribution can be roughly calculated from data for the amount of fossil fuels consumed (or produced) each year. Then run the chemistry of burning those fuels.

Now, if you get something like the Siberian Traps going, that turns around.

The more relevant question is WHY we would want to minimize human related CO2 generation when the bigger problem is that the Earth is at present (and has been for the last 40 million years or so) generally sequestering most of the atmospheric CO2, causing a long term downturn in temperatures and (for reasons we don’t entirely understand) causing more extreme temperature swings as we go along.

The variations seem likely — precession and all that — but why are the dips getting deeper relative to the interglacial periods like the one we are now in? Added to the long term decline, the dips are getting deadly — the last one nearly wiped out humans.