Seismic Events and Tsunami Analysis

In September 2023, a mysterious seismic signal was detected worldwide, lasting nine days. Scientists traced it to East Greenland, where a massive tsunami was recorded. The cause was a landslide that shattered a glacier, creating a seiche in a fjord. This event was linked to climate change, as the glacier had thinned over decades. The seiche's prolonged sloshing matched the signal's frequency, solving the mystery. The event highlights the unpredictable changes due to climate change and the need for further research.

What was unusual about the seismic signal detected on September 16th, 2023?

• It was composed of multiple frequencies.

• It lasted for only a few minutes.

• It resembled a typical earthquake.

• It consisted of a single frequency and lasted nine days.

Where did scientists trace the source of the mysterious seismic signal?

• The Sahara Desert

• East Greenland

• West Antarctica

• The Pacific Ocean

What natural event coincided with the start of the seismic signal in East Greenland?

• A massive tsunami

• A meteor strike

• A volcanic eruption

• A solar eclipse

What caused the massive tsunami in East Greenland?

• A colossal landslide

• A meteor impact

• An underwater earthquake

• A volcanic eruption

How did scientists further investigate the events leading to the tsunami?

• By conducting field surveys

• By analyzing satellite images and seismic data

• By using drones

• By interviewing local residents

What phenomenon explained the prolonged seismic signal detected globally?

• A trapped tsunami wave called a seiche

• A meteor impact

• A volcanic eruption

• A continuous earthquake

What is a seiche?

• A wave trapped in a closed or semi-closed body of water

• A meteorological phenomenon

• A type of earthquake

• A volcanic eruption

What was the frequency of the seiche wave in the fjord?

• Every 60 seconds

• Every 87 seconds

• Every 120 seconds

• Every 150 seconds

What was identified as the ultimate trigger for the seismic event?

• A meteor impact

• Climate change

• A tectonic shift

• A volcanic eruption

What future implications did scientists suggest from this event?

• A decrease in global seismic activity

• More landslides due to melting glaciers

• More frequent meteor impacts

• Increased volcanic activity