Scientists have constructed local and nation-wide maps of the radioactive particles that rained down when the Fukushima Daiichi nuclear power plant failed after a massive earthquake and tsunami rocked ...

Two of Japan's nuclear power plants were rattled on Monday when a magnitude 6.6 earthquake struck southwest Japan, prompting a tsunami advisory for parts of the region. This map shows the ...

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 ...

SHIMANE—A Japanese academic has discovered a map published in the United States in 1897 that marks Takeshima, a group of islets claimed by both Japan and South Korea, as Japanese territory.