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November 18, 2016

Complex, compound New Zealand earthquake – Part 2: Faulting by Day

Reeling from the massive M7.8 earthquake at midnight, its relentless aftershocks, and the continuing coastal threat of tsunami, New Zealanders awaited daylight on Monday to see the full extent of the destruction. The bizarre seismic records observed overnight had raised confusion and speculation about what faults were to blame for this earthquake. With an epicenter on land but also a several meter tsunami, it was clear that some complicated combination of on- …


September 6, 2012

Field work: Accomplished

I’m back! …from my fourth and “final” field season in western China. I spent a month on the northern edge of the Tibetan Plateau, hunting around in the dirt for evidence of past earthquake ruptures. Fortunately the Altyn Tagh fault is a pretty big deal, so there’s plenty of geologic history to scrape out of it. Theoretically I’ve collected all the maps, surveys, geochron samples, and frantically scribbled thoughts about …