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9 March 2017
Skiing in July? It could happen this year, but California’s days of bountiful snow are numbered. The Sierra Nevada snowpack, which provides 60 percent of the state’s water via a vast network of dams and reservoirs, has already been diminished by human-induced climate change and if emissions levels aren’t reduced, the snowpack could largely disappear during droughts, a new study finds.
7 March 2017
The rapid drawdown of the water level in the Feather River when the Oroville Dam flow was stopped last week induced multiple riverbank failures downstream
1 March 2017
Each year, AGU invites the Editors-in-Chief of the organization’s 20 journals to a retreat with members of the publications team and other senior staff to discuss strategic issues across the journals. This year’s meeting was held in San Diego, CA, and started with a field trip to the Anza-Borrego Desert.
Flow has been temporarily stopped down the Oroville Spillway in California, allowing the magnitude of the damage to be assessed.
20 February 2017
San Bernadino National Forest landslide video One of a number of new landslide videos that have been published in the last few days comes from San Bernadino National Forest in Southern California, triggered by the latest in a procession of intense rainfall events in recent weeks. This is a very impressive video of a large landslide in the Forest Falls area. In many ways the most interesting aspect is the high …
14 February 2017
Images that have appeared online over the last 24 hours dramatically illustrate the vast scale of the erosion problem at the Oroville dam site
13 February 2017
An update on the Oroville Dam spillways – a new phase of erosion leads to evacuation of 130,000 people
Yesterday, erosion on the margin of the Oroville Dam spillways caused concern about a catastrophic collapse. The evacuation of 130,00 people was ordered.
10 February 2017
At the Oroville Dam in Calfornia an extraordinary crisis has developed as the spillway undergoes massive, flood-induced erosion
2 February 2017
News reports suggest that after a landslide in the Hollywood Hills area of Los Angeles, a new house belonging to Demi Lovato has been red tagged
27 January 2017
Right now it’s incredibly important for scientists to hammer home why science is essential, important and needs to be practiced rigorously, transparently and without censorship. It’s clear that we can no longer limit ourselves to broader impact statements in our next grant applications. I thought I’d do my part by starting a new blog series and highlighting United States geoscientists and their work in action.
19 December 2016
Last week a rockslide on Highway 299W at Big French Creek in California was caught on video. The road remains closed as a result of the landslide
7 September 2016
Why maintaining forest roads is important – a large landslide triggered by a small culvert failure in the Six Rivers National Forest in California
29 August 2016
A handful of faults lining the border of California and Nevada may be near the point of rupture, according to a new study assessing earthquakes in the region as far back as 1,400 years ago. Scientists report that earthquakes in a fault network east of the Sierra Nevada Mountains are not random, but are likely triggered from stress bestowed by past earthquakes. This same type of stress has built up in six faults near Death Valley, California, and Reno, Nevada, according to the new research.
9 June 2016
In a paper in Geophysical Research Letters, Georgie Bennett and colleagues have examined the response of Californian earthflows to the ongoing drought. They have found that the landslide have slowed markedly as conditions have become drier.
13 May 2016
Two new landslide videos have appeared on Youtube, including an impressive rockfall last weekend on Mont Granier in the French Prealps and a smaller collapse at Swimmer’s Delight in California
1 April 2016
This 25th edition of the Landslides in Art series features Morning at Bluff Cove by the Californian landscape artist Richard Humphrey
30 March 2016
In a new paper in Nature Geoscience, Collins and Stock (2016) have shown that thermal expansion can be a key factor in rockfall triggering in Yosemite
3 February 2016
Three new landslide videos, including a debris flow from Aconcagua, an earthflow from Muothatal in Switzerland and coastal erosion in Pacifica
15 January 2016
My first hike of the new year was to the Lexington Reservoir near Los Gatos. Fellow USGS postdoc Kayla Iacovino (@kalyai) came along to help search for blueschist-facies rocks in what’s locally known as Franciscan Complex melange. Now, I’m getting pretty good at spotting serpentinite – not that it isn’t fairly distinctive – but I’ve been hoping to see some blueschist as well. I found this USGS publication which shows a sample of blueschist from a spot “near” Lexington Reservoir in Santa Clara county, so that was where we headed.
31 December 2015
It’s the last day of my eighth year of blogging. I’ve had a pretty amazing year, and though I haven’t gotten to writing about every bit of it, I’ve amassed some great photos of my travels. So here are a few things you’ve already seen, and a preview of a few things yet to come!