Author Archives: Chris Rowan

Highly Allochthonous at AGU 2011

It’s that time of year again – the time when San Francisco gets invaded by a small town’s worth of geoscientists for the annual AGU conference. At least 20,000 people have registered this year at last count, although since that … Continue reading

Categories: conferences

Stuff we linked to on Twitter last week

Other posts on All-geo Earth Science Erratics: Tim Sherry brings us some spectacular field photos from the Charlevoix impact crater. http://all-geo.org/erratics/2011/11/the-charlevoix-impact-crater/ Metageologist: We all rave about John McPhee, but he is by no means the only author to have written … Continue reading

Categories: links

Friday focal mechanisms: aftershocks in eastern Turkey

Almost a fortnight after a magnitude 7.1 earthquake shook Eastern Turkey, the region continues to suffer from aftershocks, and there were two pretty big ones earlier this week: a magnitude 5.2 on Tuesday, and then a magnitude 5.6 on Wednesday. … Continue reading

Categories: earthquakes, focal mechanisms, geohazards

A short FAQ on earthquakes and fracking

While there are plenty of important reasons to scrutinise this fracking business, the risk of triggering earthquakes is not one of them. Continue reading

Categories: earthquakes, geohazards, public science

The Oklahoma Earthquakes

There was some slight seismic excitement over the weekend in central Oklahoma: a magnitude 4.7 earthquake shook things up early on Saturday morning, which turned out to be the prelude to magnitude 5.6 tremor late Saturday evening. The focal mechanisms … Continue reading

Categories: earthquakes, focal mechanisms, tectonics