This network is crucial to informing Japan’s early-warning alert system. When an earthquake of a certain size is detected, warnings are issued to iPhones, TV screens and factory lines.

Don’t worry: It’s general enough to apply to the rest of Japan. But for busy people, here’s a summary of things you should know about what to do before, during and after an earthquake in Japan.

The earthquake in Japan was a magnitude of 6.7, according to CBS News. It was initially measured as a 6.9, but Japan’s meteorological agency decreased it after re-examining the event.

Japan has been warned a tsunami may be set to follow the earthquake, which occurred off the island's Pacific south coast leaving witnesses further seismic activity ...

A strong earthquake struck southwestern Japan, the U.S. Geological Survey said, prompting authorities to issue a tsunami ...

TOKYO (AP) — Japan issued a tsunami advisory on Monday after a magnitude 6.6 earthquake struck the southwest of the country. The public warnings to stay away from coastal areas were later lifted.

A strong 6.8 magnitude struck near the city of Miyazaki in Japan on Monday, January 13. Following the earthquake in the Miyazaki prefecture, the Japan Meteorological Agency (JMA) issued a ...

TOKYO (AP) — A strong earthquake with a preliminary magnitude of 6.9 has hit southwestern Japan, the country's Meteorological Agency said Monday, while warning the public to stay away from ...

Japan issued a tsunami advisory after a magnitude 6.6 earthquake struck the southwest of the country, country's Meteorological Agency said Monday. The public warnings to stay away from coastal ...

TOKYO (AP) — A strong earthquake has rattled southwestern Japan, but there were no reports of serious damage. Japan's Meteorological Agency lowered the magnitude to 6.6 from a preliminary ...