This is a list of earthquakes in Japan with either a magnitude greater than or equal to 7. As indicated below, magnitude is measured on the Richter magnitude scale M L or the moment magnitude scale M w , or the surface wave magnitude scale M s for very old earthquakes. The present list is not exhaustive, and reliable and precise magnitude data is scarce for earthquakes that occurred prior to the development of modern measuring instruments. The islands of Japan are primarily the result of several large oceanic movements occurring over hundreds of millions of years from the mid- Silurian to the Pleistocene as a result of the subduction of the Philippine Sea Plate beneath the continental Amurian Plate and Okinawa Plate to the south, and subduction of the Pacific Plate under the Okhotsk Plate to the north. Japan was originally attached to the eastern coast of the Eurasian continent. The subducting plates, being deeper than the Eurasian plate, pulled Japan eastward, opening the Sea of Japan around 15 million years ago.
Japan earthquake: At least 7 dead, millions without power on Hokkaido island
The US Geological Survey said that the earthquake struck about miles south east of Kamaishi, and around miles east of Fukushima. The depth of the earthquake, which struck at 2. Details of any damage are yet to emerge, and no tsunami warning has yet been issued. A tsunami sparked by an earthquake in the Pacific hit the nuclear plant in Fukushima in causing a major disaster - with the water disabling the emergency generators required to cool the reactors at the plant after they had automatically shut down.
Japan earthquake: Second big earthquake could hit in DAYS, agency warns
A powerful earthquake Thursday on Japan's northernmost main island of Hokkaido triggered dozens of landslides that crushed houses under torrents of dirt, rocks and timber, prompting frantic efforts to unearth any survivors. Officials said at least were injured, five of them seriously, and about 30 people were unaccounted for after the magnitude 6. Nearly 3 million households were left without power by the quake - the latest in an exhausting run of natural disasters for Japan. It paralysed normal business on the island, as blackouts cut off water to homes, immobilised trains and airports, causing hundreds of flight cancellations, and shut down phone systems. Murdoch said the trains had been shut down, stopping travellers from leaving the area.
Access insights and guidance from our Wall Street pros. Find the product that's right for you. Geological Survey said Tuesday that a 5.