Make a Comment • Email Link • Send Letter to Editor IPFS News Link • Geology Lava dome shows pressure rise at volcano Popocatepetl 07-11-2013 • newscientist.com A time-lapse video of a lava dome forming on Mount St Helens over four years captures the process in action. Watch Streaming Broadcast Live: LRN.fm DLive Live Chat Telegram Share this page with your friends on your favorite social network: