Tag Archives: Japan

Reverberations of the Honshu tsunami

Posted on March 18, 2011 by Anne Jefferson

On Friday 11 March 2011, when the fault ruptured off of the Japanese coast in a M9.0 earthquake, it caused a sudden vertical movement of the seafloor, displacing the water above it and transferring energy to the ocean. As the … Continue reading →

Categories: basics, by Anne, geohazards, tectonics

Aftershocks of the Sendai earthquake

Posted on March 14, 2011 by Chris Rowan

On a map of global earthquake activity, Japan rather stands out right now: a pulsing boil of seismic activity that all but drowns out the shaking in the rest of the world. As of a few hours ago (5pm Central … Continue reading →

Categories: basics, earthquakes, geophysics

Magnitude 8.9 (or 9.0, or 9.1!) Earthquake off the coast of Japan

Posted on March 11, 2011 by Chris Rowan

Around 3pm local time yesterday, there was a massive earthquake about 100 miles off the east coast of northern Honshu Island, Japan. Initially calculated to be a magnitude 8.9, it has since been upgraded: the current CMT solution at the … Continue reading →

Categories: earthquakes, focal mechanisms, geohazards, tectonics

Friday focal mechanisms

Posted on July 16, 2010 by Chris Rowan

A brief summary of the past two week’s significant earthquakes, and their tectonic context. Continue reading →

Categories: earthquakes, geophysics