The Euro-Mediterranean Seismological Centre (EMSC) is a not for profit scientific NGO created in 1975 which federates seismological observations at the Euro-Med scale. Thanks to its 84 institutes as members from 55 different countries, it offers rapid earthquake information to the public and international organisations through its well identified web site and its earthquake notification system. When feeling or experiencing an earthquake, citizens look for information on the EMSC website, which is the second worldwide information reference website, to investigate the cause of the shaking. Therefore, they create a surge in the website traffic which can indicate that an earthquake just occurred, even before receiving data provided by national seismological institutes. EMSC is also on social media: - Twitter https://twitter.com/LastQuake - Facebook https://www.facebook.com/EMSC.CSEM - Youtube http://www.youtube.com/user/EuroMSC