More info at http://www.my-fobo.com/
The CTBTO network:
The Infrasound Network:
The CTBTO uses infrasound stations to monitor the Earth mainly for atmospheric explosions.
The Radionuclide Network:
The CTBTO uses radionuclide monitoring to detect radioactive particles and noble gases (ie xenon) in the atmosphere.
The Hydroacoustic Network:
The Seismic Network:
CTBTO Tracks Fukushima’s Radioactive Release: