COGS is a Central Oregon-based non-profit organization promoting a greater awareness and understanding of the geological sciences through technical presentations, outreach, and field trips


Upcoming Presentation

Please click HERE to register for this Zoom Presentation

Tuesday, October 26th

6:45PM "Doors Open", 7:00PM Presentation

Andrew Dunning, Portland State University

Evaluation of slip history and Holocene activity on faults in the Strawberry Mountains

In 2018, state geologists discovered active faults in the Strawberry Mountains of Grant County. These previously undocumented faults are unexpected based on what we currently know about plate tectonics in Oregon. Furthermore, lack of seismic research in Eastern Oregon as a whole has led the USGS to qualify much of Oregon as a “Low” seismic hazard zone. The discovery of recently active faults in this area will lead to a reevaluation of that distinction in time, but first we need to know when the last earthquake was and how often they likely occur.
In this talk, Andrew Dunning will present preliminary results from ongoing research and analysis of the recently-discovered Strawberry Fault. Using sediments on top of the fault and glacial deposits coming down from the mountains, Andrew is looking for clues about past behavior of the fault. His research is mostly focused on finding the age of the most recent earthquake, but it also includes a study of Last Glacial Maximum-age glacial deposits to peer deeper into the fault’s history.

Geoscience Events & Activities by Others

Friday October 22nd @ 7:30 PM
Oregon's Basin & Range - How it Got Stretched
Dr. Andrew Meigs - Oregon State University
Click HERE for Zoom registration

Tuesday, November 2 

Climate Resilience in Central Oregon 

  Hal Wershow – Assistant Professor of Geology, Central Oregon Community College

6:30 p.m. - Wille Hall, COCC Bend Campus - livestream also available

Between record heat waves, horrific smoke and debilitating drought, we are all experiencing the anticipated effects of climate change first-hand. And while the situation is clearly dire, there is still opportunity to rewrite our climate future. Geology professor Hal Wershow will examine how our climate in Central Oregon has already changed and then share projections for what we can expect for the rest of the 21st century. After reviewing the science, he will transition into climate resilience; in other words, what can we do in our community to diminish the worst impacts and adapt to the inevitable changes.

Tickets: $8 for in-person event, $5 for livestream. Get your tickets here.
Limited in-person capacity. COVID-19 safety protocols will be in place.
COCC students and staff are FREE. Email for promo code.

About Hal Wershow
Hal Wershow began his geology career with research projects in Peru and Hawaii, before settling at Los Alamos National Laboratory, where he monitored groundwater for high explosives and radioactivity. After realizing that he made a more meaningful impact by sharing his stoke for all things Earth, he decided to teach. Along the way, he studied glaciers and climate change at Western Washington University, and had the good fortune to find himself surrounded by teaching mentors. Since beginning at COCC in the Fall term of 2018, Hal has become enamored with our fabulous local volcanoes and the glaciers they host.

This program is sponsored by Maybelle Clark Macdonald Fund and the Associated Students of COCC.