Podcast
Questions and Answers
What was the primary cause of the lengthy rumbling detected in 2023?
What was the primary cause of the lengthy rumbling detected in 2023?
Which feature of the Dickson Fjord contributed to the extended seismic activity?
Which feature of the Dickson Fjord contributed to the extended seismic activity?
How much rock and ice was displaced by the landslide in the fjord?
How much rock and ice was displaced by the landslide in the fjord?
What term describes the phenomenon of the mega-tsunami wave rolling back and forth in a confined space?
What term describes the phenomenon of the mega-tsunami wave rolling back and forth in a confined space?
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Which scientist led the investigation into the rumbling event?
Which scientist led the investigation into the rumbling event?
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What was the height of the tsunami triggered by the landslide?
What was the height of the tsunami triggered by the landslide?
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What did researchers use to uncover details about the tsunami and landslide's effects?
What did researchers use to uncover details about the tsunami and landslide's effects?
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How long did the rumbling last following the initial landslide event?
How long did the rumbling last following the initial landslide event?
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Study Notes
Mysterious Earth Rumbling of 2023 Explained
- A nine-day seismic event, unlike typical earthquakes, puzzled scientists globally in September 2023.
- The slow, constant wave was unprecedented and had no comparable historical data.
Origin of the Rumbling
- A massive landslide and tsunami in Greenland's Dickson Fjord were the cause.
- The September 16, 2023, collapse of a mountain and glacier dumped 33 million cubic yards of debris into the fjord.
- This triggered a 650-foot high tsunami.
Seiche Phenomenon Explained
- A high-resolution sonar survey by the Danish Navy revealed a seiche.
- A seiche is a standing wave that develops in confined spaces, like fjords.
- Seiches cause water to slosh back and forth.
- The contained seiche trapped the energy of the tsunami, resonating and shaking the Earth for nine days.
Climate Change Connection
- Scientists linked the landslide to rising temperatures in Greenland, causing glacier melt beneath the mountain.
- The thinning glacier destabilized the mountain, leading to the collapse.
- This event demonstrated a direct impact of climate change on global seismic activity.
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Description
Explore the unprecedented nine-day seismic event that puzzled scientists worldwide in September 2023. This quiz delves into the causes, including a massive landslide and tsunami in Greenland, and the intriguing seiche phenomenon connected to climate change. Test your knowledge and learn about the implications of these geological events.
