Geohazard information for the masses

Category: Blog posts (page 1 of 3)

The Engineering Geology Group at ETH Zurich wishes you all ‘einen guten Rutsch’ (a good slide) into the New Year

MSc opportunity: Investigating the effect of high summer temperatures on hazardous rockfall in an Alpine setting (Gelmersee, Grimsel Pass)

Candidate: Open Supervisors: Kerry Leith Institution: ETH Zurich Activity: Beginning Fall 2018 In late August 2017 moderately-sized rockfall occurred on a south-facing rock wall above the popular Gelmersee hiking trail (immediately north of Grimsel Pass), leaving six people injured. Although the occurrence of such rockfalls in alpine regions is unsurprising, the location, geological setting, and timing of this […]


Do glaciers really do all the work? Perhaps not. Check out our new paper to find out why.

Recently, my co-authors and I published a rather controversial article entitled ‘Signatures of Late Pleistocene fluvial incision in an Alpine landscape‘ in Earth and Planetary Science Letters (Volume 483, Leith et al., 2018). In this post we summarise the main outcomes, and look into a part of the backstory that never made it to print. […]


Leith et al. (2018) EPSL

Do glaciers really do all the work? Opinions are divided, but here’s a chance to make up your own mind! Our new paper with and is finally out in EPSL

An uncommon look at frost wedging in the lab under ‘autumn’, ‘winter’, and ‘spring’ conditions

Frost wedging describes the process by which pressure from the expansion of freezing water in pre-exising fractures generates sufficient tensile stress to propagate the crack further into intact rock. Although this seems like a reasonably common sense interpretation (given the transition from water to ice involves a 9% expansion that’s often associated with the bursting […]


A new SFM model for our Finland field site

Before the winter set in and a long twilight fell on the Finnish archipelago a group of us from ETH Zurich and Aalto University ventured out to Langören island to winterize the measuring equipment and gather data for numerical and structural analyses of the fracturing events. Following from a recent paper from Gonçalves et al. […]


How different are the New Zealand and European Alps?

The answer is very, and it’s all down to climate, vegetation, and tectonics. Early winter in the central Swiss Alps (Saas Fee, Switzerland) Below are equally scaled Google Earth images of the Arolla Valley in the central Swiss Alps (left), and the Callery Valley on the western side of the New Zealand Alps (right). Of […]


Erosion rate estimates indicate fluvial gorge formation in a catchment on the southern side of the Alps outpaced glacial erosion at the same location for the last ~400 kyr.

Fox, M., Leith, K., Bodin, T., Balco, G., Shuster, D.L., 2015. Rate of fluvial incision in the Central Alps constrained through joint inversion of detrital 10Be and thermochronometric data. Earth and Planetary Science Letters 411, 27-36.


Clues for former instability at the site of the Koslanda landslide, Sri Lanka

Monsoon rains triggered a large earth flow near the town of Koslanda yesterday. The landslide struck early in the morning, and according to the Disaster Management Center destroyed more than 120 homes, with current estimates suggesting there could be more than 100 casualties. New video from the site gives the first really good impression of the […]


Stress-driven has found a new digital home

Hi all, After a long weekend of coding I’ve moved to a new home in the open source environment. This should make a big difference to the usability and scalability of the site, while keeping the effort required for me to add new content to a minimum. At the moment there may still […]

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