The Tonga volcanic eruption is not likely to cause global climate change, while the volcanic ash and acid rain may damage crops and water supply, a leading New Zealand volcanologist said Monday.
Professor Shane Cronin of the University of Auckland, who visited the Hunga-Tonga Hunga-Ha'apai volcano in November 2015, has explained the uniqueness of the volcanic event and its impacts.
According to the professor, the most significant impact so far has been the tsunami generated at the beginning of the eruption.
The professor said the impact from acid rains for the affected areas such as Tonga and parts of eastern Fiji could be real. Should there be many more eruptions to come, and the acid rain continues, it could be more damaging for crops and water supply.
The longer-term effects of the volcanic eruption on marine life could be significant, he said.
According to the professor, a series of more minor eruptions happened in the submarine volcano in 1998, 2009, 2014, 2015 and perhaps even earlier than that. Saturday's eruption was so severe because a lot of the magma in the volcano had been building up for at least 10 years, or maybe longer.
He also warned of future tsunami events.
Produced by Xinhua Global Service