Meeting Location

The NCGS meets each last Wednesday of the month in Orinda at the Masonic Center, 9 Altarinda Rd.  There is a social period at 6:30 p.m. At 7 p.m. a talk (no dinner).  Cost is $5 per regular member; $1 per student member, and $1 per K – 12 teachers.





NCGS 2015-2016 Calendar

(Please click on the available links to view the abstract and speaker biographies; for previous yearly calendar of events see bottom of page)



9 Altarinda Road, Orinda, California

6:30 p.m. social; 7 p.m. talk (No Dinner)



The Start of the NCGS Year!!


September 30, 2015

Dr. Gregory Beroza, Stanford University, Berkeley Seismological

Laboratory - Lawson Lecture

Induced Earthquakes in the 21st Century

6:30 Social; 7:00 pm Talk at Orinda Masonic Lodge


October 29, 2014

Dr. Anne M. Sanquini, recently of Department of Geological Sciences, School of Earth, Energy and Environmental Sciences, Stanford University

Inspiring Earthquake-Resistant Construction in the Kathmandu Valley, Nepal


November 18, 2015 (Early due to Thanksgiving)

Dr. Andrea Foster, U.S. Geological Survey

The Environmental Legacy of California's Gold Rush: Arsenic and Mercury Contamination from Historic Mining

6:30 Social; 7:00 pm Talk Orinda Masonic Lodge


No Meeting in December


January 27, 2016

Dr. Samuel Johnson, U.S. Geological Survey

Pacific Coastal & Marine Science Center

Exploring California’s Amazing Seafloor - the Visionary California Seafloor Mapping Program

6:30 Social; 7:00 pm Talk at Orinda Masonic Lodge


February 24, 2016        Last Minute Change due to Speaker Unavailability

Dr. John Karachewski, Department of Toxic Substance Control

Exploring California’s Hydroscapes

6:30 Social; 7:00 pm Talk at Orinda Masonic Lodge


March 30, 2016

Dr Jeff Unruh, Lettis Consultants International Inc.

Geologic History of Mt. Diablo

6:30 Social; 7:00 pm Talk at Orinda Masonic Lodge


April 27, 2016

Dr. Ronald Olowin, Department of Physics and Astronomy, Saint Mary’s College

Dark Matter and the Universe

6:30 Social; 7:00 pm Talk at Orinda Masonic Lodge


May 25, 2016


(Please Note - You MUST Reserve to attend; walk-ins cannot be accomodated.  Please download the form and submit to Barb Matz by May 20, 2016)

Dr. Charles K. Paull, Monterey Bay Aquarium Research Institute

Monterey canyon: Superhighway to the Deep-Sea

6:00 pm Social; 6:45 Dinner; 8:00 pm Talk at Orinda Masonic Lodge


June 22, 2016

Jerome V. De Graff, California State University Fresno

Richard H. Jahns Lecturer for 2016 by the Association of Environmental & Engineering Geologists and the Geological Society of America

Fire, Earth, & Rain: Emergency response for wildfire-induced landslide hazards

6:30 Social; 7:00 pm Talk at Orinda Masonic Lodge


Our Usual Summer Break


September 28, 2016 Rick Wilson, California Geological Survey

Addressing California’s Tsunami Hazard

6:30 Social; 7:00 pm Talk at Orinda Masonic Lodge


October 26, 2016 Dr. Brian Collins, US Geological Survey

Processes of exfoliation-induced rock falls: recent studies from California’s Sierra Nevada

6:30 Social; 7:00 pm Talk at Orinda Masonic Lodge


November 16, 2016 (One Week Early)

To Be Determined

6:30 Social; 7:00 pm Talk at Orinda Masonic Lodge



2015 - 2016 NCGS Events and Field  Trips

(When available, click on the following links to download field trip applications)


October 24, 2015

Anatomy and provenance of a deep-water boulder conglomeratic submarine canyon in the Upper Cretaceous Panoche Formation (Cenomanian), Great Valley Group, San Luis Reservoir, central California

Dr. Todd J. Greene, Department of Geological and Environmental Science, California State University, Chico


February 6, 2016

Promontory klippeof the Franciscan formation - examining the geology, geography, vineyard and wine

David Howell, retired U.S. Geological Survey geologist and co-author of The Winemaker’s Dance: Exploring Terroir in Napa Valley




Do you have a place you’ve wanted to visit for the geology?  Let us know.  We’re definitely interested in ideas.  For those suggestions, or for questions regarding, field trips, please contact our Field Trip Coordinator Stefano Mazzoni (see About the NCGS page).







Older Calendar of Events



2003 - 2004 Calendar of Events




2004 - 2005 Calendar of Events




2005 - 2006 Calendar of Events



2006 - 2007 Calendar of Events



2007 - 2008 Calendar of Events



2008 - 2009 Calendar of Events



2009 - 2010 Calendar of Events



2010 - 2011 Calendar of Events



2011 - 2012 Calendar of Events



2012 - 2013 Calendar of Events



2013 - 2014 Calendar of Events



2014-2015 Calendar of Events




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