NOVA PBS Official (May 10, 2023) – In January 2022, one of the most powerful volcanic eruptions in recorded history rocked the Pacific islands of Tonga, sending shockwaves around the world.
Video timeline:00:00 Introduction 01:47 The Day of the Eruption in Tonga: Firsthand Accounts 08:44 Geologists Study the Volcano to Determine the Cause of the Eruption 20:49 Understanding the Unpredictability of Submarine Volcanoes. 27:00 The Tsunami Caused by the Eruption in Tonga 41:55 Studying Tofua: The Volcanic Twin of Hunga Tonga–Hunga Haʻapai 50:10 How Communities Can Prepare for Future Eruptions and Tsunami
Through first-person accounts of the disaster and eyewitness footage, experience the terrifying power of the eruption and the devastating tsunami that struck the shores of Tonga. Why was this eruption so big, how did it cause the tsunami, and could another disaster loom?
Scientists scramble to understand the devastating Tongan volcano eruption, and modelling how societal changes might alter carbon emissions.
In this episode:
00:46 Understanding the Tongan eruption
On the 15th of January, a volcano in the South Pacific Ocean erupted, sending ash into the upper atmosphere, and unleashing a devastating tsunami that destroyed homes on Tonga’s nearby islands. Now scientists are trying to work out exactly what happened during the eruption — and what it means for future volcanic risks.
11:29 Modelling societal changes to carbon emissions
A team of researchers have modelled what humans might do in the face of climate change, and looked at how societal, political and technological changes could alter future emissions.
We discuss some highlights from the Nature Briefing. This time, China alters its guidelines for gene-edited crops, and how Guinea worm infections have been driven down from millions of cases a year to just 14.
Boomers Daily 