About Safecast


[Above: 3 Minute Safecast Documentary by Adrian Storey; Middle: 3 Minute featurette about the Safecast Conference 2015 by Make It Creative; Bottom: PBS NewsHour science correspondent Miles O’Brien reports on Safecast;]


Safecast logos can be downloaded here

Safecast is a global project working to empower people with data, primarily by mapping radiation levels and building a sensor network, enabling people to both contribute and freely use the data collected. After the 3/11 earthquake and resulting nuclear situation at Fukushima Diachi it became clear that people wanted more data than what was available. Through joint efforts with partners such as International Medcom, Keio University, The John S. and James L. Knight Foundation and GlobalGiving, Safecast has been building a radiation sensor network comprised of static and mobile sensors actively being deployed around Japan – both near the exclusion zone and elsewhere in the country.

Safecast supports the idea that more data – freely available data – is better. Our goal is not to single out any individual source of data as untrustworthy, but rather to contribute to the existing measurement data and make it more robust. Multiple sources of data are always better and more accurate when aggregated.

While Japan and radiation is the primary focus of the moment, this work has made us aware of a need for more environmental data on a global level and the longterm work that Safecast engages in will address these needs. Safecast is based in the US but is currently focused on outreach efforts in Japan. Our team includes contributors from around the world.

Safecaster JAM did a fantastic interview for the IEEE Spectrum podcast which can be listened to online here.

Here is a SAFECAST flyer (Japanese & English) that you can print out.

Reoccurring monthly support

Some Key Facts About Safecast

  • Safecast was created 1 week after the 3/11 Japan earthquake.
  • Small core team, with more than 100 regular volunteers worldwide.
  • Team concentrated in Tokyo, with smaller support teams globally
  • Initially funded via Kickstarter and private donations, Safecast has received a grant from The John S. and James L. Knight Foundation
  • Have deployed over 800 sensors currently
  • As of May 2015, over 28,000,000 data points collected.
  • All data collected and published by Safecast is open and available under CC0 dedication.

[Below: Vice Japan attends one of our geiger counter build events in Tokyo]