A massive 8.9 magnitude earthquake has hit off the north-east coast of Japan causing a tsunami that has caused extensive damage. The earthquake struck about 250 miles from Tokyo and there have been powerful aftershocks.
Map from Earthquakes in the Last Week
Google has released a Person Finder for Japan. Using the application it is possible to search for information or add information for someone who may have been affected by the earthquake.
This Google Map shows the locations of impromptu shelters set-up to help with food, drink and blankets etc.
Temporary Shelters Map
The USGS has created a Google Gadget that allows you to view near real-time earthquake information. The gadget uses the Google Earth browser plug-in to show worldwide seismic hotspots.
Map from Real-time Earthquakes
In the USA the National Weather Service Forecast Office has issued a tsunami warning for the west coast of America.
NWSFO tsunami warning for the San Francisco / Monterey Bay area