How an Earthquake Warning System Works 0 17.05.2016 20:48 WSJ.com A 2014 file photo shows a building near the San Francisco area following a 6.0-magnitude earthquake. A system is being developed that would give some advanced warning for quakes like this. Here's a look at how it could work. Photo: AP Moscow.media Частные объявления сегодня Rss.plus Все новости за 24 часа
