Global Tonga tsunami explained by a fast-moving atmospheric source.

ABSTRACT: Volcanoes can produce tsunamis by means of earthquakes, caldera and flank collapses, pyroclastic flows or underwater explosions^1-4. These mechanisms rarely displace enough water to trigger transoceanic tsunamis. Violent volcanic explosions, however, can cause global tsunamis^1,5 by triggering acoustic-gravity waves^6-8 that excite the atmosphere-ocean interface. The colossal eruption of the Hunga Tonga-Hunga Ha'apai volcano and ensuing tsunami is the first global volcano-triggered tsunami recorded by modern, worldwide dense instrumentation, thus providing a unique opportunity to investigate the role of air-water-coupling processes in tsunami generation and propagation. Here we use sea-level, atmospheric and satellite data from across the globe, along with num

SUBMITTER: Omira R 

PROVIDER: S-EPMC9492550 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature