When aftershock data is available, the corresponding maps and charts include earthquakes within 100 miles and seven days of the initial quake. All times above are Japan time. Shake data is as of ...

The magnitude 7.9 Bonin Islands earthquake sequence in May 2015, which ruptured deep within the earth near the base of the upper mantle, did not include an aftershock that extended to record depths ...

Ten years after the Great East Japan Earthquake, the Japan Meteorological Agency will no longer describe a quake occurring off Tohoku as "likely an aftershock," starting from April 1. That's ...

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 ... in mind the likelihood of aftershocks and use the stairs.

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

Experts have cautioned that while small tremors help release some energy, they don’t eliminate the risk of a major quake.

Japan's nuclear plants faced global scrutiny after the devastating 2011 tsunami triggered by a 9.0 magnitude earthquake.

Aftershocks can strike over the next ... Japan's Meteorological Agency said. Japan is frequently hit by earthquakes because of its location along the “Ring of Fire,” an arc of volcanoes ...