#FactCheck: Old clip of Greenland tsunami depicts as tsunami in Japan

Research Wing
Research Wing
Innovation and Research
PUBLISHED ON
Aug 6, 2025
10

Executive Summary:


A viral video depicting a powerful tsunami wave destroying coastal infrastructure is being falsely associated with the recent tsunami warning in Japan following an earthquake in Russia. Fact-checking through reverse image search reveals that the footage is from a 2017 tsunami in Greenland, triggered by a massive landslide in the Karrat Fjord.

Claim:


A viral video circulating on social media shows a massive tsunami wave crashing into the coastline, destroying boats and surrounding infrastructure. The footage is being falsely linked to the recent tsunami warning issued in Japan following an earthquake in Russia. However, initial verification suggests that the video is unrelated to the current event and may be from a previous incident.

Fact Check:


The video, which shows water forcefully inundating a coastal area, is neither recent nor related to the current tsunami event in Japan. A reverse image search conducted using keyframes extracted from the viral footage confirms that it is being misrepresented. The video actually originates from a tsunami that struck Greenland in 2017. The original footage is available on YouTube and has no connection to the recent earthquake-induced tsunami warning in Japan


The American Geophysical Union (AGU) confirmed in a blog post on June 19, 2017, that the deadly Greenland tsunami on June 17, 2017, was caused by a massive landslide. Millions of cubic meters of rock were dumped into the Karrat Fjord by the landslide, creating a wave that was more than 90 meters high and destroying the village of Nuugaatsiaq. A similar news article from The Guardian can be found. 

Conclusion:


Videos purporting to depict the effects of a recent tsunami  in Japan are deceptive and repurposed from unrelated incidents. Users of social media are urged to confirm the legitimacy of such content before sharing it, particularly during natural disasters when false information can exacerbate public anxiety and confusion.

  • Claim: Recent natural disasters in Russia are being censored
  • Claimed On: Social Media
  • Fact Check: False and Misleading

PUBLISHED ON
Aug 6, 2025
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