Originally Posted by: Caz

It still looks like they have magma movement but I haven’t seen any further news. I’ve booked our cruise, which still has two islands of The Azores on its itinerary on 4th and 5th May.  I wonder if we’ll make it this time?  

I think it might be a while longer but it would seem a large amount of magma is involved. Personally i would rather it happened in summer time as it would mean a greater chance for us of seeing some nice volcanic sunsets.

Edited by user 14 April 2022 21:55:59(UTC)  | Reason: Not specified

We’re back from our cruise and had two days in the Azores.  We saw and heard absolutely nothing about the earthquakes or the recent worry about eruptions.  The news seems to have stopped coming as well, so maybe it’s calmed down. 

Originally Posted by: lanky

the atmospheric effect of the eruption of the Tonga Volcano in January has now been analysed in more detail and has been found to have had the biggest effect on the atmosphere since at least the start of the 20th century and on a par with Krakatoa in 1883

https://www.bbc.co.uk/news/science-environment-61452860

 

Worth a read, Lanky.

"The eruption of the Tonga volcano in January has been confirmed as the biggest explosion ever recorded in the atmosphere by modern instrumentation....  It was far bigger than any 20th Century volcanic event, or indeed any atom bomb test conducted after WWII."

Roger

p.s.

p.s. The lunar eclipse [tonight]  could be a deeper darker red than usual because of lingering exhaust from the Tonga volcano.

Full story @ Spaceweather.com

Edited by user 15 May 2022 15:59:19(UTC)  | Reason: + addition

Originally Posted by: doctormog

Hopefully it will stay clear in places for the eclipse later tonight.. The scale of the Tonga eruption is incredibly impressive and we are “lucky” that it wasn’t somewhere more densely populated.

On a different, but volcanic-related note, things are looking quite active seismically in SW Iceland over the last few days. Not sure of the cause as yet but worth keeping an eye on.

The SW Iceland thing is (at least in part) more magma accumulating at depth by the looks - whether this particular intrusion makes it to the surface is debateable but has the potential to be somewhat more disruptive given current uplift centre is not that far from Grindavik. 

On the Tonga front this was quite an interesting watch:-

Tonga Eruption Updates and New Surprising Discoveries: So Powerful It Reached Space! - YouTube

(No idea of that chap credentials BTW but didn't seem like one of the sensationalist idiots that make up a fair bit of youtube). 

Edited by user 23 May 2022 19:10:06(UTC)  | Reason: Not specified

Originally Posted by: doctormog

 

On the subject of the Tonga eruption, the BBC have an interesting report on how (surprisingly) intact the volcano still is: https://www.bbc.co.uk/news/science-environment-61529290 

Quite surprised by that - was expecting at least a fair chunk of the volcano to have slipped away to account for the tsunami generated. 

Originally Posted by: doctormog

 

On the subject of the Tonga eruption, the BBC have an interesting report on how (surprisingly) intact the volcano still is: https://www.bbc.co.uk/news/science-environment-61529290 

6.5 cubic km of ash and rock was ejected and the base of the caldera has now gone down to 850m below sea level

I am just wondering whether we will see a dip in the global temperature over the next year as we did with Pinatubo in 1991

https://www.bbc.co.uk/news/science-environment-61567521

The last thing the world needs right now is a major natural disaster with global impacts.

(so it's bound to happen )