General Volcanic Activity Thread!

[Dreckly]

Hunga Tonga-Hunga Ha'apai volcano (Tonga) activity update: dramatic morphological changes to shape

WWW.VOLCANODISCOVERY.COM

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Hunga Tonga-Hunga Ha'apai volcano (Tonga, Tonga Islands): news & activity updates

https://www.volcanodiscovery.com/hunga-tonga-hunga-haapai/news/170574/Hunga-Tonga-Hunga-Ha-apai-volcano-Tonga-activity-update-dramatic-morphological-changes-to-shape.

Edited January 16, 2022 by Dreckly

[SnowBear]

3 minutes ago, Dreckly said:

 

https://www.volcanodiscovery.com/hunga-tonga-hunga-haapai/news/170574/Hunga-Tonga-Hunga-Ha-apai-volcano-Tonga-activity-update-dramatic-morphological-changes-to-shape.

I think thats from just before the major eruption? is nothing left pretty much now. 

Edit: see mattys post a few posts back. 

Edited January 16, 2022 by SnowBear

[Dreckly]

On 16/01/2022 at 10:20, SnowBear said:

I think thats from just before the major eruption? is nothing left pretty much now. 

Just added a better link to follow. 

[matty40s]

 

[Skullzrulerz]

Has there been any word on Tonga? 

[cyclonic happiness]

I wonder if the dust from the explosion will impact the coming winter month's weather around the world, Mnt St Helens did, and that was a similar size I think?

[ArHu3]

I wonder how this eruption will change the medium to long range forecast, surely a shock wave this big would have a huge impact 

tonga btw?

Any news From 

Edited January 16, 2022 by Mapantz
Fixed excessive whitespace

[The PIT]

1 hour ago, matty40s said:

 

Interesting it's take part of the caldera wall away as well. Time will tell if it has now finished the present cycle of eruptions or not or whether they'll be more in the next few days weeks.

[Eagle Eye]

43 minutes ago, cyclonic happiness said:

I wonder if the dust from the explosion will impact the coming winter month's weather around the world, Mnt St Helens did, and that was a similar size I think?

Mount st Helens in terms of eruption size was nothing compared to this eruption 

[Ross90]

37 minutes ago, Eagle Eye said:

Mount st Helens in terms of eruption size was nothing compared to this eruption 

It's hard to compare when there's little (no) videos from nearby. Probably a good thing as anyone within 10 miles or so would likely have been killed.

[cyclonic happiness]

49 minutes ago, Eagle Eye said:

Mount st Helens in terms of eruption size was nothing compared to this eruption 

I was thinking more that this eruption has ejected a similar amount of ash to st helens because it was mainly water vapour?  I think it must be a similar size to Krakatoa.  Maybe we'll get some cold weather now lol?

[matty40s]

Tonga is a mess, lots of damage but phone signals back on now.

The eruption is unlikely to affect the weather much, majority of the large cloud was steam and Sulphur Dioxide was not in a large enough or long enough volume to change things globally.....yet.

[ANYWEATHER]

Amazing footage something akin to a disaster movie....Wonder how many nuclear Bombs it would need to equal that explosion.? .?? Something is definitely brewing seismic activity is definitely on the increase.....I just wondering about Yellowstone  ??? What's next.....???

[jonboy]

10 minutes ago, ANYWEATHER said:

Amazing footage something akin to a disaster movie....Wonder how many nuclear Bombs it would need to equal that explosion.? .?? Something is definitely brewing seismic activity is definitely on the increase.....I just wondering about Yellowstone  ??? What's next.....???

No evidence that yellowstone is anywhere near blowing 

[Ross90]

I'm sure I read somewhere a few months ago that yellowstones magma chamber is only about 15% full and not all of that is molten. Unless there was a huge increase in filling then it'll be hundreds if not thousands of years before it's ready to erupt. The chances of a vei 8 eruption in any of our lifetimes is very small. 

[alexisj9]

5 hours ago, The PIT said:

Did anyone hear anything round those times. Overnight I heard what sounded like my side gate rattling but didn't check the time. If we wanted too I guess we could calculate how far away we are from each other.

Think I did hear something during the night, couldn't find anything out of place though. Sounded like rattling or scratching. Probably not related, didn't hear anything at the earlier time, but TV was on loud, and the kids were playing games.

Edited January 16, 2022 by alexisj9

[ANYWEATHER]

1 hour ago, jonboy said:

No evidence that yellowstone is anywhere near blowing 

But do we really know, I don't think so

[toggerob]

From my perspective Campi Flegri in Italy (already showing signs of unrest) or Laacher See in Germany pose the more biggest risk than Yellowstone although you don't necessarily need a full-blown VEI8 eruption for Global Cooling effects to impact globally as Laki in 1783 has shown.

 

[The PIT]

1 hour ago, ANYWEATHER said:

But do we really know, I don't think so

They are pretty sure and most of magma chamber is crystalline so cannot erupt. At the moment it's subsiding so no magma being injected so not even an hint of the more likely small eruption.

[Guest]

Looks like there was another much smaller eruption this morning at Hunga Tonga. Clearly the magma chamber wasn’t completely emptied.

[SnowBear]

Pacific volcano: New Zealand sends flight to assess Tonga damage

WWW.BBC.CO.UK

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Up to 80,000 people could be affected after tsunami waves caused "significant damage" to Tonga.

 

 

[crimsone]

Hunga Tonga-Hunga Ha'apai has a major eruption cycle every 1000 years or so. We know this from sediments.

Also from sediments, we know that the last one was about 1000 years ago, and that a major eruption cycle can have multiple eruptions, both little and large.

What we don't know, is whether this was THE big bang, or whether it was one of multiple big bangs. We don't even know how big it was... but we do know that it was phreatomagmatic, such that the bang might have been bigger than the VEI (yet to be measured) would suggest. There are a range of scenarios, and nobody knows for sure right now.

We do know that the internet is out in Tonga, their water supply is contaminated, and in lieu of full comms and the ability to fly, Aotearoa NZ currently has a P3 Orion flying over to assess the damage.

[crimsone]

In a show of just how shakey our ability to predict these things really is (or put another way, just how little warning we might sometimes get), here's a facebook post from Jan 11th declaring the eruptive period over and the volcano dormant.
 

 

Edited January 16, 2022 by crimsone

[crimsone]

On 15/01/2022 at 21:51, Kiwi said:

I suspect my relatives in Northland may have heard it. Where are you Crimsone? Did you hear or feel anything?

Not a damn thing! 

I'm in Auckland, but at the time I was either barreling down the 16 from Ponsonby, or in Countdown desperate to get home with some kai.

[toggerob]

A second large explosion was reported at 10pm Sunday (UT time) and has likely impacted the RNZAF P3 Orion recon flight which had earlier sent out to assess the damage over the islands, seems it's not over with this current eruption phase.

Edited January 17, 2022 by SNOW_JOKE