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- How I (mostly) slept through the one of the largest earthquakes to hit NW Europe in 200 years
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- Geological mayhem and destruction in 2012: not the end of the world, just business as usual
- Scenic Saturday: Year End Reflections
- Our Highly Allochthonous travels in 2011
- Two more earthquakes shake Christchurch
- Stuff we linked to on Twitter last week
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Category Archives: geohazards
Geological mayhem and destruction in 2012: not the end of the world, just business as usual
We don’t live on a boring planet. 2012 will be plagued by natural disasters, but so is every other year. Continue reading
Categories: antiscience, climate science, earthquakes, geohazards, palaeomagic, public science, volcanoes
Two more earthquakes shake Christchurch
Just as it seemed that seismic activity was finally dying down in Christchurch, the city has been shaken by two more earthquakes. The USGS currently has the first shock pegged as a magnitude 5.8, and the second as a magnitude … Continue reading
Categories: earthquakes, focal mechanisms, geohazards
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
M 7.2 earthquake near Van, eastern Turkey
Earlier this morning, a magnitude 7.2 earthquake hit near the city of Van on the eastern border of Turkey. The BBC reports that at least 45 people have died as buildings collapsed close to the rupture. The most well-known seismic … Continue reading
Categories: earthquakes, focal mechanisms, geohazards, tectonics
Friday Focal Mechanisms: the Hayward Fault shows up to the Shakeout Party
Yesterday, several million Californians participated in the 2011 Great California ShakeOut – a simulated earthquake drill, held close to the anniversary of the 1989 Loma Preita earthquake, that aims not only to raise awareness of the ever-present risk of a … Continue reading
Categories: earthquakes, focal mechanisms, geohazards
Friday focal mechanism: mountain building in Argentina
Yesterday a magnitude 6.2 earthquake struck in the Jujuy province of northwestern Argentina, in the western foothills of the Andes. What few news reports there are indicate strong shaking but little damage in what seems to be a remote and … Continue reading
Categories: earthquakes, focal mechanisms, geohazards, structures
One recipe for flooding: Take a tropical cyclone and add steep topography
The past few weeks have brought two tropical cyclones* to the eastern seaboard of the United States. They serve nicely to illustrate the topographic controls on flood generation that we were been talking about in my Fluvial Processes class recently. … Continue reading
Categories: by Anne, geohazards, geomorphology, hydrology
Flooding around the world (3 July edition)
Here is a brief update on the floods I covered in the last edition of flooding around the world. Note that there has also been flooding in Xiengkoung, Viengtian, Boolikhamxay, and Xayaboury provinces of Laos, as a result of heavy … Continue reading
Categories: by Anne, geohazards, hydrology
Update: Christchurch aftershocks
As the aftershocks of the Darfield quake continue, where do the future seismic dangers lie? Continue reading
Categories: earthquakes, geohazards, tectonics
