7. Undersea Volcano in Tonga, 2009 (Polynesian)
An undersea volcano erupted near Tonga, a Polynesian sovereign state.
The gases spewing out of the sea was a spectacular sight.
Four days after the start of the eruption a strong earthquake measuring 7.6 on the Richter scale also struck the region.
The eruption occurred on March 16, 2009.
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