Category Archives: geophysics

Aftershocks of the Sendai earthquake

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

Shaking in Christchurch boosted by seismic lensing?

Even taking into account how close the rupture point of Tuesday’s earthquake was to Christchurch, the intensity of the shaking – and the amount of damage that the city suffered as a consequence – seems to be very high for … Continue reading

Categories: earthquakes, geohazards, geophysics

Friday Focal Mechanism: Magnitude 7.2, Western Pakistan

Why are we getting an extensional earthquake at a convergent plate boundary? Continue reading

Categories: earthquakes, focal mechanisms, geophysics, tectonics

An avalanche at the museum

At the Chicago Museum of Science & Technology, make your own debris flows with the hypnotic Avalanche Disk. Continue reading

Categories: geohazards, geology, geophysics, public science, science education

Yellowstone: what lies beneath

The best evidence yet that the Yellowstone hotspot is the result of a mantle plume – one that had to burn through a subducting slab to get to the surface. Continue reading

Categories: geophysics, paper reviews, volcanoes