The Potomac Geophysical Society (PGS) is the Washington D.C. area affiliate of both the American Geophysical Union and the Society of Exploration Geophysicists. Founded in 1973, the Society typically meets on the 3rd Thursday of the month from September through May for dinner at the Orchard Cafe  Restaurant in the DoubleTree by Hilton, Tysons Corner, VA, and a presentation on timely topics in the earth sciences. Look for the glassed-in meeting room at the back of the restaurant.

President's Letter 2017   PGS 2017 Member form.pdf

Meeting Schedule for 2017-2018

Thursday September 21, 2017, Dr. Michael Ryan, "Columnar Jointing in Active Hawaiian Lava Lakes and in Ancient Lava Flows"

Thursday October 19, 2017, Dr. Douglas Baumgardt, "Water, Rocks and Seismology".

Thursday November 16, 2017, Chris Connors, "Subsurface Expression of the Tectonic History of Arctic Alaska and Adjacent Beaufort and Chukchi Seas"

Thursday December 14, 2017, Danielle Sumy, "Induced Earthquakes: Past Lessons and Future Research Directions"

Thursday January 18, 2018, Pritwiraj (Raj) Moulik, "Towards Community Driven 3-D Reference Earth Models"

Thursday February 15, 2018, Karl Veith, "Toward Consistent Earthquake Magnitude Estimates - From all Seismic Phases"

Thursday March 15, 2018, Lara Wagner, Carnegie DTM, "Not So Stable After All: Lithospheric Structure in the Southeastern US"

Thursday April 19, 2018, Erin Cunningham, University of Maryland, "Sediment and Crustal Structure of the Eastern North American Margin"

Thursday May 17, 2018, Emily Martin, Smithsonian Institution, "Water, Water Everywhere: a Weird and Watery Solar System"

Meeting Schedule for 2016-2017

Thursday 15 September 2016 - Dr. Michael Ryan, The Magma Physics Project, Hilo, Hawaiii, "Rock-, mineral-, and melt-physics and magma neutral buoyancy in Hawaii”

Thursday 20 October 2016 - Bill Burton, USGS, "Ancient and modern tectonism in the central Virginia Piedmont: Geologic investigations following the 2011 M5.8 Mineral, VA earthquake".

Thursday 17 November 2016 - Nicholas Schmerr, Univ. of MD, "Active Source Seismic Investigation of Firn Aquifer Structure in Southeastern Greenland".

Thursday 15 December 2016 - Catherine Cox, ATR Corp, "Geophysics Isn't Just a Study, It's a Way of Life".

Thursday 19 January 2017, Callan Bentley, NVCC, "The Next Generation of Digital Visualizations for Geoscience Education and Engagement".

Thursday February 16, 2017, Paul H. Nadeau, Univ. of Stavanger, Institute of Petroleum Geology, "The US Shale Oil/Gas Revolution: An Historic Opportunity to Advance American Society"

Thursday March 16, 2017, Ricardo Arevalo, NASA Goddard Space Flight Center, "Planetary Exploration and the Role of In-Situ Mass Spectrometry".

Thursday April 20, 2017, Jay Pulli, Raytheon BBN Technologies and Kevin Heaney, Ocean Acoustical Services and Instrumentation Systems, "Seismic and Hydroacoustic Analysis of Four Large Underwater Explosions off the East Coast of Florida".

Thursday May 18, 2017,  Dale C. Andrew, AEG President, "Chemical Modification of Soils". Please note that Check-in and DInner start at 6 PM and the presentation is from 7:00-8:00 PM. 

Meeting Schedule for 2015-2016

Thursday 24 September 2015 - "The curse of dimensionality in exploration geophysics", 2015 Near Surface Honorary Lecture, Hansreudi Maurer, ETH Zurich, Switzerland

Thursday 15 October 2015 - "Some observations of the 2011 Virginia earthquake sequence", Keith McLaughlin, Leidos

Thursday 19 November 2015 - "International urban search and rescue Operations following the Nepal earthquake", John Morrison

Thursday 17 December 2015 - "What is in a name?  Virginia locality names with geologic significance", Catherine B. Enomoto, USGS

Thursday 21 January 2016 - "DC Area Seismic Monitoring", Tom Pratt, USGS

Thursday February 18, 2016, "Remote Sensing International Case Studies", Barry Haack, George Mason Univ.

Thursday March 17, 2016, "New discoveries on Mars, and results from the Pluto flyby", Harold Geller, George Mason Univ.

Thursday April 21, 2016, "Sputnik Planum: A Geologically Active Impact Basin on Pluto", Harold Geller, George Mason Univ.

Thursday May 19, 2016, "Geo-Spatial Data Support for the Spring Valley Chemical Weapons Investigations", Terrence Slonecker, Joint AEG-PGS Meeting

Meeting Schedule for 2014-2015

Thursday 18 September 2014 - "Using modern technology to map ancient landslides in the central Appalachians: examples from North Carolina and Virginia," Anne Carter Witt, Virginia Division of Geology and Mineral Resources, Charlottesville, Virginia

Thursday 16 October 2014 - "Seismic evidence for the geologic evolution of the Alaska Beaufort Sea and adjacent Canada Basin," David Houseknecht, U.S. Geological Survey, Reston, Virginia

Thursday 20 November 2014 - "Developments in airborne geophysics," Victor Labson, U.S. Geological Survey, Reston, Virginia

Thursday 18 December 2014 - No meeting, holiday break

Thursday 15 January 2015 - "Use of electromagnetic data and other techniques to delineate acid mine drainage at the Coketon/Kempton Mine Complex in western Maryland," Paul Petzrick, Maryland Dept of Natural Resources

Thursday 19 February 2015 - "Geology and public policy - Recent examples from Virginia", David Spears, State Geologist, Virginia Division of Geology and Mineral Resources

Thursday 19 March 2015 - "Geophysical investigations in support of planning and design of tunnels and shafts for the DC Water Clean Rivers Project," Timothy King, Geophysical Services, AECOM, Germantown, Maryland

Thursday 16 April 2015, - "Magnitudes from Local and Regional Seismic Signals--Test Case: Iran", Dr. Karl Veith, Consultant

Thursday May 21, 2015 - Joint Meeting of the Potomac Geophysical Society and the Baltimore/Washington/Harrisburg section of the Association of Environmental & Engineering Geologists at 6:00 p.m. at Amphora Restaurant, 377 Maple Avenue West, Vienna, VA. "Conventional Tunneling (SEM) at Tysons Corner, Virginia" by Vojtech Gall, Gall Zeidler Consultants, Ashburn, Virginia

Directions to the PGS Meetings

List of PGS Officers, 1973 - 2015

Founding Members of PGS

PGS Officers for 2017 - 2018

PGS Members: Pre 1990

PGS Members: 1991-2000

History of Presentations

Join the Mailing List

Meeting Room and Dining Arrangements:

We meet at the Orchard Cafe in the DoubleTree by Hilton Hotel, Tysons Corner, VA, and provide presentations on timely topics in the earth sciences. Look for the meeting room at the back of the restaurant. We pay a single bill, so we collect $30 from each member and $40 from each non-member.   Reception is at 6:00 p.m. downstairs in O'Malley's Pub. We order dinner at 7:00 p.m. The presentation is at approximately 8:15 p.m. Reservations are necessary; if you wish to attend dinner, please send email to dcgeophys@gmail.com.

PGS Photo

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Last modified January 31, 2018 by Jay J. Pulli