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Meta
Category Archives: focal mechanisms
More large aftershocks rattle Christchurch: will it ever end?
Analysis of the ongoing earthquake sequence. Continue reading
Earthquake location matters, part eleventy
It’s been a month since the Tohuku earthquake and tsunami rattled then swamped northern Honshu, and Japan continues to be rattled by sizeable aftershocks. A magnitude 7.1 shock last Thursday initially set off further tsunami alerts but the rupture turned … Continue reading
Magnitude 8.9 (or 9.0, or 9.1!) Earthquake off the coast of Japan
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
Magnitude 6.3 earthquake rocks Christchurch
[Note: see the bottom of this post for the latest updates and links – last update 26th February]. A few hours ago, Christchurch, the largest city on the South Island of New Zealand, was once again shaken by a large … Continue reading
Friday focal mechanisms: Chile’s persistent seismic gap
The magnitude 8.8 earthquake that shook Chile in February 2010 occurred within a seismic gap – but new research suggests that it did not fill it. Continue reading