Global Scans · Super Tsunami · Weekly Summary

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A global catastrophic risk is a hypothetical future event that has the potential to damage human well-being on a global scale. Some events could cripple or destroy modern civilization. Any event that could cause human extinction is known as an existential risk.

• [New] Tatsuki warns of an undersea volcanic eruption between Japan and the Philippines, causing a tsunami larger than the one from the Great East Japan Earthquake. Minna no RakuRaku Magazine
• [New] The geographical specifics of South Korea make it prone to various natural hazards, including typhoons, floods, droughts, tsunamis, earthquakes, and more. Energy Tracker Asia
• [New] Even a moderate earthquake in the eastern Mediterranean could set off a tsunami with the potential to affect a large proportion of the 130m people who live on its coastline. GreekReporter.com
• HiPIMS has been widely applied in over 40 countries across the world and continued to develop to support multi-hazard systemic risk assessment and management including flooding, tsunami, storm surge, and landslide. Loughborough University
• The risk of undersea landslides and their potential to cause tsunamis along New Zealand's east coast is being investigated by scientists aboard the German research vessel RV Sonne as part of a month-long international collaboration. NIWA
• While Axial Seamount poses minimal immediate threat to human populations, the 2022 Hunga Tonga-Hunga Ha'apai eruption, which caused a Pacific-wide tsunami, underscores the need for preparedness. Gadgets 360
• University of Alaska Fairbanks researchers have devised a way to remotely detect large landslides within minutes of occurrence and to quickly determine whether they are close to open water and present a tsunami hazard. ScienceDaily
• More than a thousand earthquakes have rattled the Greek island of Santorini in recent days, raising concerns about the potential for a tsunami in the Mediterranean region. Yahoo News
• Globe constructs and retrofits towers to withstand extreme weather, factoring in risks such as flooding, earthquakes, tsunamis, and volcanic eruptions. GoodNewsPilipinas.com
• Most APEC economies are situated along the Pacific Ring of Fire, where strong earthquakes, tsunamis, and volcanic eruptions pose constant threats. APEC
• Japan continues to be vulnerable to a broad scope of public health risks including earthquakes, tsunamis, volcanic activity, floods, typhoons and the climate change emergency. UCL IRDR Blog
• The southwestern Portuguese coast, particularly the Algarve region, is at significant risk of an earthquake exceeding magnitude 8, which could generate a destructive tsunami. SpringerLink
• Indonesia faces high mortality risk due to multiple hazards including droughts, floods, earthquakes, landslides, and tsunami. PubMed Central (PMC)
• ANCHORAGE, Alaska (AP) - The powerful earthquake that struck in Northern California on Thursday prompted a brief tsunami warning affecting about 5 million people along long stretch of the West Coast - from Northern California to Oregon - before being canceled. Daily Journal
• Westinghouse's partnership with CORE POWER will focus on deploying floating nuclear power plants, which can be stationed offshore, minimizing risks associated with land-based natural disasters such as tsunamis and earthquakes. The Pinnacle Gazette
• Global Tsunami Risk and Preparedness700 million people live in tsunami-prone coastal regions; expected to rise to 1 billion by 2050.High-risk areas like the Pacific face tsunamis every 1-2 years, with a near 100% chance of a tsunami in the Mediterranean within 30 years. Optimize IAS
• While significant progress has been made in regionally active tsunami warning and mitigation systems, ongoing efforts are essential to ensure that Asia and the Pacific remains resilient to future tsunami threats. Inter Press Service
• Hawaii has a statewide outdoor warning siren system, which can be used to notify residents ahead of natural disasters or human-caused events, including tsunamis, hurricanes, dam breaches, flooding, wildfires, volcanic eruptions, terrorist threats and hazardous material incidents. CBS News
• The Japan Meteorological Agency on Thursday issued its first-ever warning of the risk of a huge earthquake along the Pacific coast after a quake on the southernmost main island of Kyushu triggered a tsunami warning. The Guardian
• Myanmar is exposed to multiple natural hazards including cyclones, earthquakes, floods, droughts, landslides, tsunamis, and fires. SpringerLink
• Indonesia's Meteorology, Climatology, and Geophysical Agency has issued a warning about impending megathrust earthquakes that could lead to massive tsunamis, stressing the urgent need for preparedness. BNA - Breaking news in Batam and beyond: Batam News Asi
• If a magnitude 9.1 quake struck near the southern coast, it could generate a tsunami exceeding 10 meters with a death toll of more than 300,000 and economic damage of more than 220 trillion yen (US$ 1.5 trillion) in a worst case scenario. CTVNews
• The meteorological agency's advisory warns of a higher probability of a huge earthquake in the Nankai trough, an ocean-floor trench running along Japan's Pacific coast, where previous quakes have triggered enormous tsunamis. Yahoo News

Last updated: 31 March 2025