America’s Volcano Threat Needs No Eruption

Fast mudflows could level towns in minutes

View in Browser  DIGITAL ISSUES GEAR REVIEWS SUBSCRIBE America’s Biggest Volcanic Threat May Not Start With an Eruption These fast-moving mudflows can devastate towns in a matter of minutes. Read More A Strange Soviet Signal Still Haunts the Airwaves The Duga system, built near the infamous Chernobyl Power Plant, is a towering relic of the Cold War. Read More A DIY Guide to Building Your Own Off-Grid Solar Setup We spent the time to research and plan our own installation, and it'll help you make the right decisions when you build out your own system. Read More The Jackery Explorer 1500 Ultra, Tested: Serious Backup Power It can truly handle the outdoors. Read More The REI Base Camp 6, Tested: Spacious, Tough, and Storm-Ready Its space-to-weight ratio is as good as it gets. Read More Archaeologists Found a Medieval Notebook Hidden in a Toilet Experts are using high-tech methods to decipher the cursive Latin writing inside. Read More Need Assistance? Contact Us. Follow Us Unsubscribe | Manage Preferences | Privacy Notice | CA Notice at Collection Popular Mechanics is a publication of Hearst Magazines. ©2026 Hearst Magazine Media, Inc. All Rights Reserved. This email was sent by Hearst Magazines, 300 West 57th Street, New York, NY 10019-3779