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Tonga Volcanic Eruption


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Has anyone seen any reports on if we expected this eruption?  I know scientist study volcanos and generally speaking have an idea when a volcano is heating up but I wonder if there were any recent warnings/signs about this one.

Anyone?

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From the Great Google Machine:

What are the early signs of a volcanic eruption?

Notable precursors to an eruption might include:

An increase in the frequency and intensity of felt earthquakes. Noticeable steaming or fumarolic activity and new or enlarged areas of hot ground. Subtle swelling of the ground surface. Small changes in heat flow.

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https://www.volcanodiscovery.com/hunga-tonga-hunga-haapai-eruptions.html

It looks like these Tonga volcanoes have been very active. The above link lists eruptions in 1988, 2009, 2014 and 2021. The other link I posted above talks about a gaseous plume from one of the volcanoes in December.

More details about this eruption here.

https://www.volcanodiscovery.com/hunga-tonga-hunga-haapai/news/170502/Hunga-Tonga-Hunga-Ha-apai-volcano-Tonga-major-eruption-sent-ash-up-to-17-km-86-000-lightnings-in-plu.html

 

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7 minutes ago, Voice of Reason said:

https://www.volcanodiscovery.com/hunga-tonga-hunga-haapai-eruptions.html

It looks like these Tonga volcanoes have been very active. The above link lists eruptions in 1988, 2009, 2014 and 2021. The other link I posted above talks about a gaseous plume from one of the volcanoes in December.

More details about this eruption here.

https://www.volcanodiscovery.com/hunga-tonga-hunga-haapai/news/170502/Hunga-Tonga-Hunga-Ha-apai-volcano-Tonga-major-eruption-sent-ash-up-to-17-km-86-000-lightnings-in-plu.html

 

At least from those sources it appears we had no idea.  This was one of the tweets shared in the link:

 

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And I think this link from the same source as VoR posted gives us some recent activity:

https://www.volcanodiscovery.com/hunga-tonga-hunga-haapai/news.html

From that link:

A new satellite image of the volcano from 2 January was captured with significant morphological changes that have formed during the latest phreatomagmatic activity.

From available satellite images, it seems to confirm a new cone compared to the most previous imagery from 3 December.

The new cone has likely formed by the accumulation of tephra around the vent and is located to the northeast from the previous 2014-2015 cone, already eroded by currents and waves.

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2 minutes ago, Bluegrasscard said:

Some photoshop showing if this was where Mt. St. Helens is. 

 

 

Wow, that is getting into Super Volcano territory. 

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1 hour ago, theguru said:

At least from those sources it appears we had no idea.  This was one of the tweets shared in the link:

 

I kept waiting for the wave of water to arrive in that video. I guess a tsunami gathers momentum and grows as it moves away from the force that created it?

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1 minute ago, Voice of Reason said:

I kept waiting for the wave of water to arrive in that video. I guess a tsunami gathers momentum and grows as it moves away from the force that created it?

I would think with no additional power source the waves would lose energy over time.  However, changes in the depth/structure should force the water up.  I need someone smarter than me to tell us what is what here. 

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