Natural disasters August 8, 2024 9:57 am What is a megaquake? There are an estimated one to two megaquakes a year across the globe, which have the power to completely destroy communities near their epicenter. Here’s what you need to know. US & World Videos 1:43 Hotel workers' strike underway in Boston 2:38 Former Pres. Trump, supporters return to Butler, Pa. for rally 2:47 Boston hotel workers say they want to be able to afford to live in the city 1:38 Former Pres. Trump returns to site of assassination attempt to rally supporters 2:13 Boston hotel workers prepare to strike again — this time until there's a new contract