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November 5, 2012
Ten years ago Denali shook
Saturday [November 3, 2012] marked the ten-year anniversary of the largest quake to hit the U.S. since 1964, and the 1906 SF quake before that. The M7.9 Denali earthquake tore a ~250 mile gash through Alaskan glaciers and pine forests along the Denali Fault, which runs beside the eponymous mountain also known as Mt. McKinley, North America’s highest peak. Much like the Haida Gwaii earthquake last week, the Denali quake …
February 16, 2012
Deformation from the El Mayor Cucapah earthquake: our Science paper
On Friday, February 10, the journal Science published our paper on deformation caused by the M7.2 El Mayor-Cucapah (EMC) earthquake of April 4, 2010. The data we present is the first of its kind at this scale and scope: we have both pre-earthquake and post-earthquake high resolution topographic surveys that cover virtually the entire fault rupture, all 120 km of it. We used both to calculate the topographic change resulting from this large temblor, …
June 23, 2011
The UC Davis KeckCAVES and earthquake studies
I am privileged to be able to conduct much of my research using an immersive 3D data visualization facility housed by UC Davis. I link there to a clip of the Holodeck from Star Trek because that’s pretty much what this facility is, and I’ve got videos of it below. The future is here; see for yourself. The KeckCAVES (Center for Active Visualization in the Earth Sciences, or “the Cave” as we …
April 9, 2011
El Mayor-Cucapah earthquake anniversary
I have just returned from three weeks of field work at the site of a rather forgotten but significant earthquake that occurred one year ago last Monday, just south of the Mexico-U.S. border in Baja California del norte. At 3:40pm PDT last Easter Sunday (April 4, 2010), the ground beneath the Sierra El Mayor began to unzip. The seismic energy that was radiated outward continued rupturing roughly northwest-southeast oriented faults, …
