During the night 8.9-magnitude earthquake occurred about 400km (250 miles) north-east of Tokyo. It has been reported to have been 8.9 by the US Geological Survey, which hit at 1446 local time (0546 GMT) at a depth of about 24km, with numerous aftershocks. As if this wasn’t devastating enough the earthquake triggered a tsunami which has not only caused mass destruction in Japan but is on the move to other coastal areas.
This map shows the Pacific Tsunami Warning Center’s “tsunami forecast model” of wave height and when different areas should expect any impact. Tsunami warnings have been issued for coastal areas across the Pacific.
Image from BBC News 2011 (click on image to be taken to the original page).
There are a whole host of websites which can direct you to information about how the earthquake and tsunami occurred. One of the most useful pages has been produced by the Geographical Association with a short summary of events and a long list of useful links to scientific information and media coverage (please use link below).
Time also has a photo gallery of some of the events so far: Photogallery
A truly devastating day for many people, with the effects of the event ongoing. My thoughts are with the people of Japan and anywhere else that has been affected by this truly catastrophic event.