Misinformation Surrounds Tsunami Following Japan Earthquake
Following a 7.4 magnitude earthquake off the coast of Japan on April 20, 2026, misleading videos circulating online have been falsely linked to the event. These videos, depicting past tsunami events, have been shared widely on social media, prompting fact-checkers to debunk the claims and clarify the situation.
Earthquake and Tsunami Warnings
The earthquake, with a magnitude of 7.4 according to the United States Geological Survey (USGS), occurred approximately 100 km east-northeast of Miyako, Japan. The Japan Meteorological Agency (JMA) issued tsunami warnings for the Pacific coast regions of Aomori, Iwate, and parts of Hokkaido Prefecture, as well as advisories for Fukushima Prefecture and Eastern Hokkaido. The U.S. Embassy in Japan issued an alert advising U.S. Citizens to stay out of the water and away from beaches, follow instructions from local officials, and move to higher ground if in affected areas.
Debunking Misleading Videos
Fact-checking organizations, including AFP Fact Check, and Tempo.co English, have identified and debunked videos falsely presented as footage of the April 20, 2026 tsunami. AFP Fact Check specifically addressed a video that was actually from an older tsunami event. Tempo.co English reported on the circulation of misleading videos following the earthquake.
Importance of Reliable Information
The spread of misinformation during and after natural disasters can hinder effective response efforts and cause unnecessary panic. Authorities urge the public to rely on official sources, such as the Japan Meteorological Agency, NOAA Weather Radio, and local news outlets, for accurate and up-to-date information. The U.S. State Department also encourages U.S. Citizens to enroll in the Smart Traveler Enrollment Program (STEP) to receive alerts and assistance during emergencies.