Global Scans · Super Tsunami · Weekly Summary

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] More extensive testing against tsunami data worldwide will allow a thorough calibration of the uncertainty quantification framework, eventually introducing strategies to reduce uncertainty without losing accuracy. PubMed Central (PMC)
• [New] The US Tsunami Warning System had warned of possible hazardous tsunami waves along the nearby coasts of Mexico and Guatemala. BBC News
• [New] PTWC has the responsibility for providing tsunami threat information to 46 countries in the Pacific and Caribbean through an agreement with UNESCO. Times-Standard
• There is increasing emphasis that tsunami warning systems should not operate in isolation, but rather be embedded within broader Multi-Hazard Early Warning Systems. Nature
• A wildcard is the tech sector, which has seen so-called AI hyperscalers issue a tsunami of corporate debt that's competing against Treasury bonds for investors' dollars. Fortune
• More broadly, as the world ages, modeling the burden of cancer, dementia, and other diseases could better prepare healthcare systems for the so-called silver tsunami. SingularityHub
• By 2036, the Silver Tsunami will be in full effect as the youngest Baby Boomers reach their 70s. 24 Hour Caregivers, Inc.
• The Silver Tsunami: As the 65+ population in California grows toward a projected 25% of the total state population by 2030, high demand for limited caregivers naturally drives prices upward. 24 Hour Caregivers, Inc.
• A 7.7 magnitude earthquake Monday off northern Japan sparked a short-lived tsunami alert and an advisory of a slightly higher risk of a possible megaquake for its coastal areas. WSB-TV Channel 2 - Atlanta

Last updated: 03 August 2026