In-Depth: Hunga Tonga-Hunga Ha’apai Eruption
On January 15 local time, a volcano erupted in the Kingdom of Tonga, causing a damaging and deadly tsunami and cutting off communications.
Cowritten by Kerbal01.
Earlier this week, we talked briefly about the volcanic eruptions occurring in the Kingdom of Tonga last weekend, and we promised you an in-depth look at the situation. Scientists are continuing to analyze a wealth of data, with more coming in every day, but here is what we know so far.
Several weeks ago, on December 20, 2021, the submarine volcano Hunga Tonga-Hunga Ha’apai began to erupt. That initial set of eruptions was barely noted in international media, with most of the coverage remaining local because nothing much was going on. The visible portion of the volcano, or rather, the island produced at the surface, grew based on an analysis of satellite images. But the volcano quieted back down, and by January 11, 2022, it had been declared dormant.
And then, at 0420 UTC on Friday, January 14 (5:20 pm local time on Saturday, January 15), a much larger eruption occurred that sent a mushroom cloud of ash, steam, and gas up into the atmosphere to a height of nearly twenty kilometers, although later analysis of sulfur dioxide plumes in the…
