Models for evacuation procedures in big cities after massive earthquakes

In 1923, a magnitude 7.9 earthquake devastated the Tokyo area, resulting in more than 100,000 deaths. About 200 years earlier, in 1703, a magnitude 8.2 earthquake struck the same region, causing more than 10,000 deaths.

More than 9,600 people would die with nearly 150,000 injured if a mega-quake struck Tokyo, a disaster that would also level large parts of the Japanese capital, a government projection said Wednesday.

Seen from atop the towering Tokyo Sky Tree, the patchwork of narrow alleyways and ramshackle houses that make up Tokyo's Sumida district is a picturesque throwback to the Japan of yesteryear.

(PhysOrg.com) -- Tokyo may be at serious risk from a massive aftershock and associated tsunami as a result of the devastating March 11 earthquake near Sendai, Japan, according to UC Davis seismologist John Rundle.

Chubu Electric said Friday it will build an 18-metre (60 foot) anti-tsunami seawall to protect its ageing Hamaoka nuclear plant located near a faultline in a region seen as vulnerable to earthquakes.

(AP) -- Much of Japan's Pacific coast could be inundated by a tsunami more than 34 meters (112 feet) high if a powerful earthquake hits offshore, according to revised estimates by a government panel.

(AP)—One of Alaska's most restless volcanoes has shot an ash cloud 15,000 feet into the air in an ongoing eruption that has drawn attention from a nearby community but isn't expected to threaten air traffic.

NASA's Tropical Rainfall Measuring Mission satellite known as TRMM measured Cyclone Mahasen's rainfall rates from space as it made landfall on May 16. Mahasen has since dissipated over eastern India.

The first tropical storm of the Eastern Pacific hurricane season was short-lived. Satellite imagery revealed that Tropical Storm Alvin became a remnant low pressure area 36 hours after it was named.

Why Tibetan antelope can live at elevations of 4,000-5,000m on the Qinghai-Tibetan Plateau? In a collaborative research published in Nature Communications, investigators from Qinghai University, BGI, and other institutes provid ...

Short, sharp fluctuations in the Earth's climate throughout the last ice age may have stopped trees from getting a foothold in Europe and northern Asia, scientists say.

The massive ball of iron sitting at the center of Earth is not quite as "rock-solid" as has been thought, say two Stanford mineral physicists. By conducting experiments that simulate the immense pressures deep in the planet's ...