Vulcanic Eruption in Tonga

(Last edited 22th of December 2021)


Hunga Tonga-Hunga Ha'apai volcano

Text below from Matangitonga.to:

Tonga's erupting Hunga Ha'apai volcano put on a show of lightning at sunset tonight. As a large gaseous cloud continues to rise to 18km altitude and drift over all islands, all Tongan residents were advised by geologists this evening to protect their water tanks from possible acidic rainfall, until the volcanic eruption ceases.

β€œIf the eruption dusts and ash are associated with rain it can result in a slightly acidic rainfall (pH 2.5-5.0). The acid will typically be dominated by hydrochloric acid (HCl) and sulfuric acid (H2SO4) arising from the plume gases HCl and sulphur dioxide (SO2),” they said.

β€œAll Tongan residents are advised to remove guttering systems from rainwater water tank storages until the volcanic eruption ceases and reinstall after the next rainfall event, to reduce risk of contamination from potential ashfalls during this event.”\n\nSymptoms of exposure to acid rain are itchiness and skin irritation, and blurry and discolouration of vision.

β€œIf eyes or skin are exposed to acidic rain, please see a medical doctor or physician for appropriate treatment,” they advised.

Here is a tweet by Michael Field

The lack of reporting from Ha'apai and the scattered reports from Vava'u raise concerns that this eruption may be a looming disaster for Tonga - help may be needed pic.twitter.com/DC8T950xpU

— Michael Field (@MichaelFieldNZ) December 20, 2021

In Christ,

John Tibell

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