Bizarre, nine-day #seismic signal caused by epic #landslide in #Greenland
The source of the signal was eventually traced back to a massive landslide in Greenland’s remote #DicksonFjord. A staggering volume of rock and ice, enough to fill 10,000 Olympic-sized swimming pools, plunged into the #fjord, triggering a 200-meter-high mega-tsunami and a phenomenon known as a #seiche: a wave in the icy fjord that continued to slosh back and forth, some 10,000 times over nine days.
https://arstechnica.com/science/2024/09/bizarre-nine-day-seismic-signal-caused-by-epic-landslide-in-greenland/

Holy crap, did you even know this happened?
Last September, a 1,200-meter-high mountain peak collapsed in Greenland after the glacier supporting it from below melted. The resulting landslide triggered a 200-meter high tsunami that sent shockwaves reverberating across the planet for over a week (earthquakes only last minutes to hours by comparison). #tsunami #DicksonFjord
https://www.theguardian.com/environment/2024/sep/12/entire-earth-vibrated-climate-triggered-mega-tsunami

An accepted manuscript #postprint is now available for the paper "A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days"

Svennevik et al., Science, 2024, 385 (6714), 1196-1205.

http://dx.doi.org/10.1126/science.adm9247

The postprint can be downloaded from https://ngi.brage.unit.no/ngi-xmlui/handle/11250/3153094

A Rockslide-Generated Tsunami In A Greenland Fjord Rang Earth For 9 Days
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https://doi.org/10.1126/science.adm9247 <-- shared paper
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#GIS #spatial #mapping #seiche #tsunami #model #modeling #observation #massmovement #engineeringgeology #debrisflow #landslide #massmovement #risk #hazard #spatialanalysis #spatiotemporal #Greenland #seismic #seismology #DicksonFjord #fjord #rockslide #climatechange #standingwaves #cryosphere #hydrosphere #masswasting #geomorphology #geomorphometry #tsunamigenic #glacier #glacial #melting #amplitude #lithosphere #naturalhazard

Via #CTV News @ 11:34am, Sept 14, 2024

It started with a melting #glacier that set off a huge landslide, which triggered a 650-foot high mega-tsunami in #Greenland last September. Then came something inexplicable: a mysterious vibration that shook the planet for nine days.

Over the past year, dozens of scientists across the world have been trying to figure out what this signal was

#tsunami #DicksonFjord #science #Climate #ClimateChange #Arctic #Seismology #earthquake

https://www.ctvnews.ca/climate-and-environment/a-landslide-triggered-a-650-foot-mega-tsunami-in-greenland-then-came-something-inexplicable-1.7038218