Centuries of warning of a supervolcano eruption - with zoomable map of top seven supervolcanoes

 New York City~New York City~Home of the great Yaron Koren New York City~New York City~Site of SMWCon Spring 2013 New York City~New York City~Financial capital of New York State New York City~New York City~concrete jungle where dreams are made of Montreal, Canada~Montreal~Site of SMWCon Spring 2014 Albany, NY~Albany~Capital of New York State Berlin~Berlin (city)~Capital of Germany Berlin~Berlin (city)~where WikiData is built Berlin~Berlin (city)~Site of SMWCon Fall 2013 Berlin~Berlin (city)~Site of SMWCon Fall 2011 Cologne~Cologne~SMWCon Fall 2012 Carlsbad~Carlsbad~SMWCon Spring 2012 London~London~Capital of the United Kingdom London~London~Where the Open Data Institute is headquartered London~London~Where Sir Tim Berners-Lee is based Norway~Norway~Meanwhile in Norway Washington DC~Washington DC~Site of SMWCon Spring 2011 Amsterdam~Amsterdam~Site of SMWCon Fall 2010 Stanford CA~Stanford~Site of SMW Meetup Spring 2009 Boston MA~Boston~Site of SMW users' meeting Nov 2008 Boston MA~Boston~Site fo SMWCon Spring 2010 Karlsruhe DE~Karlsruhe~Site of SMW Camp Fall 2009 