The Wikidata project sounds like it can be an amazing source of
information over the long term. Key to that is interoperable data with
known formats that will last the test of time. If you want an
electronic copy of my book (Silver Bullets) on this topic, email me and
I'll send along gratis.
One standard format I'd highly recommend is Common Alerting Protocol
(CAP), which has been driven by OASIS (
www.oasis-open.org) . CAP is
becoming a worldwide standard for notification and alerting - used by
FEMA, NOAA, USGS in the US gov, Australia, Canada, Sri Lanka and many
other countries. Google uses CAP alerts as a basis for their new public
safety alerting, and many commercial products and companies are
incorporating CAP.
These alerts/notifications also are useful for a historical look at
events past - you can accumulate all the earthquake data for an area
over a period of years.