New York is set to have a ring of sensors to warn them of nuclear and biochemical attacks. On the other side of the world, Japan is doing kind of the same thing but they are up against a force stronger than any manmade bomb or weapon - Mother Nature's wrath. Recently, Japan has launched a satellite-based alert system that will instantly send warnings of tsunamis and updates on volcanic activity to help speed-up evacuations.

The earthquake-prone country experiences roughly 10% of the world's magnitude 6 or greater earthquakes. And because of its location on the Pacific Ring of Fire, they are also prone to strong underwater quakes which could trigger tsunamis. Aside from that, the country is home to 108 active volcanoes.

The system, called J-ALERT, will activate communication devices in the regions connected to the system. This will set off sirens and voice advisories via radio. For now, J-ALERT will be implemented to just 10 state governments and four cities.