Gravity waves from the Hunga Tonga eruption
01 · Volcanic Earth · 00:08 · 2022
What happens after a sudden event: in the first minutes, in the following months, over forty years.
Eruptions and landslides happen in minutes. What follows them is slower, and that is what these films record. Each one starts at a sudden event and then watches what it leaves behind, at a different distance in time.
Watch them from the shortest time scale to the longest. The Hunga Tonga film covers the hours after the eruption, as pressure waves cross the Pacific. The Lamplugh Glacier film compares the ice before and after a mountainside fell onto it. Mount St. Helens runs for forty years after the 1980 blast, as forest returns to the ground it covered.
Start with the first film