I attended the Tom Hanks, a Remembrance symposium at the USGS in Moffett Field Oct. 17, 2024. It was a great chance to remember Tom, refle...

The fragility of geologic features, such as precariously balanced rocks (PBRs), can be measured by a simple parameter like α. For the case o...

Along with Federica Ferrarini , Nathan Toké , and Michele M. C. Carafa , we are looking forward to submissions to this special "issue...

Today is the anniversary of the catastrophic great Tohoku Japan earthquake and tsunami of March 11, 2011. While I am not an expert of subduc...

I am organizing for a presentation to my research group on fault scarp analysis. This is an ongoing obsession of mine. I have blogged about ...

Over the years, I have maintained a steady obsession with fault scarps. For my Ph.D., I worked on a few aspects of fault-scarp development: ...

The SoSAFE activity was a very successful data gathering and interdisciplinary science rallying activity in the Southern California Earthqua...

The M w 7.3 Landers, California earthquake occurred on June 28, 1992 ( USGS page ). It is known for a number of interesting features includi...

Kate Scharer (USGS) , Mike Oskin (UC Davis) and I organized a geochronology workshop for the Southern California Earthquake Center communi...

I had a wonderful trip to Busan, Korea for the Paleoseismology, Active Tectonics, and Archeoseismology (PATA Days) meeting . I really enjo...

Readers may know my current obsession with Structure from Motion (SfM). Here is a new 5 minute long documentary from Merri Lisa Trigilio on...

In July 2013, Gayatri Marliyani and I taught a short course at LIPI in Bandung, Indonesia on Techniques in Active Tectonic study. I put t...

This is a cool San Andreas Fault documentary: http://watchdocumentary.com/watch/how-the-earth-was-made-s01e01-san-andreas-fault-video_202fae...

Our team along with Sinan Akciz and Lisa Grant-Ludwig from UC Irvine just finished a SCEC -supported project to re excavate a few of the tre...