PGS: human behavio(u)r when earthquakes shake

Happy Thanksgiving!  Due to the AGU Fall Meeting coming to town, our December meeting is a week early.  If you will be at AGU, we encourage you to drop by the session being convened by the PGS — T13E: Geology and Geophysics of the National Capital Region Posters on the afternoon of Monday, December 10.  Afterward, the group will be heading out for happy hour (more details to come!).  You’re welcome to join us for drinks and conversation even if you’re unable to attend the poster session.

Please join us for the December 6, 2018 meeting of the Potomac Geophysical Society at 7:00 p.m. at the DoubleTree by Hilton McLean Tysons, 1960 Chain Bridge Road, 22102.  This location is within one-half mile of the Tysons Corner Metro station, near I-495, and has free parking available.  Our private meeting room is located in the back of the Harvest Cafe restaurant on the second floor of the hotel.  The optional dinner cost will be discounted to $30 for members in good standing (have paid dues) and students, and $40 for non-members, and is inclusive of iced tea, coffee, tax and gratuity.  Members and guests may attend the presentation after dinner for no charge; we estimate that the presentation will begin at 8:15 p.m.  For attendees who arrive early, social time will be held in O’Malley’s Pub on the first floor of the DoubleTree by Hilton hotel.  Drinks may also be purchased in the private meeting room on a cash basis.

If you plan on attending, please RSVP to by noon Monday, December 3.  We encourage you to spread the word about our meetings to your colleagues and students (a flyer is attached).  As always, guests are welcomed. We hope to see you there!

In summary:
Social Time: 6:00-7:00 p.m. O’Malley’s Pub, first floor DoubleTree by Hilton
Dinner: 7:00-8:15 p.m. Peachtree Room, Harvest Cafe, second floor DoubleTree by Hilton

Meeting & Presentation: 8:15-9:30 p.m. Peachtree Room, Harvest Cafe, second floor DoubleTree by Hilton
This month’s talk and speakers:

Understanding human behaviour during and immediately following earthquake shaking

by David Johnston and Emma Hudson-Doyle,
Massey University, New Zealand

Globally, little research has analysed the immediate human responses to earthquake shaking. Human behaviour and injury data from the Canterbury Earthquake Sequence (Mw7.1 Darfield 2010; Mw6.3 Christchurch 2011) was investigated and identified three main influences on human behaviour during earthquake shaking. The first influence is the human environment during the quake, such as inner-city building, in bed at home, or outside. Second, who an individual is with at the time of the earthquake will affect their behaviour. For example, an adult with a small child will behave differently than an adult alone. Third, an individual’s behaviour during shaking is also influenced by their age, gender, previous earthquake experience, and the size of the earthquake. This talk will explain how different human behaviours can help survival, or increase the risk of injury or even death.

Professor David Johnston is a Principal Scientist at GNS Science and Director of the Joint Centre for Disaster Research in the School of Psychology at Massey University, Wellington, New Zealand. His research has developed as part of multi-disciplinary theoretical and applied research programme, involving the collaboration of physical and social scientists from several organisations and countries.  His research focuses on human responses to volcano, tsunami, earthquake and weather warnings, crisis decision-making and the role of public education and participation in building community resilience and recovery. In 2016 he became Co-chair of World Meteorological Organisation’s (WMO) High Impact Weather Project (HIWeather) Steering Group. This follows his role as the Chair of the Integrated Research on Disaster Risk Scientific Committee (IRDR) (2013-2015), a program co-sponsored by the International Council for Science (ICSU), the International Social Science Council (ISCC), and the United Nations International Strategy for Disaster reduction (UNISDR). He is the Editor of The Australasian Journal of Disaster and Trauma Studies; and was the founding Editor of the Journal of Applied Volcanology.

Dr Emma Hudson-Doyle is a Senior Lecturer at the Joint Centre for Disaster Research, Massey University, New Zealand. Her interests lie at the interface between physical science and critical decision makers, with a primary focus on the communication of uncertain science advice and forecasts during natural hazard events. Current research focuses on the communication of model uncertainty. Recent research projects have included investigations into the communication of probability forecasts, uncertain science advice, and team based emergency management simulations for a hypothetical volcanic eruption (N.Z’s Foundation for Research, Science and Technology Postdoctoral Fellowship).
Future meeting dates: Jan. 10, Feb.14, Mar. 14, Apr. 11, May 16

AWG social on Thursday

Greetings DMV AWG Members & Friends!
Thank you to all of our volunteers for the October Field Trips! The budding geoscientists from 4 to 9 years old loved being able to ask questions to professional experienced geoscientists! Attached is a clip from the NOAA Field Trip where the young aspiring geoscientists assisted in launching a weather balloon (we don’t currently have permission to post this on social media and we ask that you also refrain from sharing this on any social media platform)! After the launch we got to see the real-time data collection plotting on the computer screens inside the station, which demonstrated pressure changes in the atmosphere, an idea that was discussed earlier in the field trip and demonstrated through simple experiments.
WHAT: DMV AWG Social Hour and an opportunity to help shape future events for our chapter
WHERE: Wunder Garten located at 1101 1st Street NE (one block away from the NOMA Gallaudet U Metro stop on the Red Line)
WHEN: This Thursday, NOV 15th from 6-8pm 
WHO: You and any geoscientist in the DMV area that would like to participate
We hope to see you Thursday!
The Officers


GSW 1535: Deep carbon, making continental crust, Virginia resources


Michael Walter, Carnegie Institution – Geophysical Lab
The Fate of Deeply Subducted Carbon

Jesse Reimink, Carnegie Institution – DTM
Probing the earliest continental crust-formation events known on Earth

Lorrie Coiner, Virginia DMME, Department of Geology and Mineral Resources
The State of the Commonwealth:  Virginia’s Mineral and Energy Resources


Meeting flyer to post and share

Refreshments at 7:30 p.m.
Formal program at 8:00 p.m.
John Wesley Powell Auditorium
2170 Florida Avenue NW, Washington, DC

UMD: Woods Hole’s Fauria on submarine volcanism

2018 University of Maryland Geology Colloquium Series

Friday, November 2nd 2018 at 3:00 pm
in PLS 1130, UMD College Park

Kristen Fauria
Woods Hole Oceanographic Institution

Submarine volcanic eruptions: why some rocks float and others sink

The 2012 eruption of Havre submarine volcano was the largest submarine pyroclast-producing eruption in modern history. Most of the material from the eruption formed a > 1.2 km3 pumice raft that floated across the South Pacific for more than a year. Rafts of floating pumice spread volcanic material far from its source and are important for the dispersal of marine organisms. Here we explore how pumice get to the surface from deep submarine eruptions, why some – but not all – pumice stay afloat in rafts, and how high porosities and phase changes lead to complex behaviors. By understanding the clast-scale dynamics of pumice in water, we can better interpret deposits and understand the fate of volcanic material in the ocean.

GSW 1534: Mercury, mineral dehydration, sloths

Meeting Number 1534

John Wesley Powell Auditorium, Cosmos Club, 2170 Florida Ave NW

Wednesday, October 24, 2018; Refreshments 7:30 pm; Meeting 8:00 pm


PETER VAN KEKEN, Carnegie Institution Linking metamorphic dehydration reactions with subduction zone earthquakes.
ROSEMARY KILLEN, NASA Mercury’s exosphere.
RYAN HAUPT, Smithsonian Institution Applying paleontological proxy methods to modern sloths: What can the odd mammal out tell us about their even odder fossil relatives?

Talks will be 20 minutes w/questions to follow. 

Future Meetings 2018: Nov 7; Dec 5 (Presidential address & annual meeting).
Know someone who would enjoy GSW? Consider inviting a colleague or friend to the meeting.
Minutes of the previous meeting are posted on the GSW website for review by members.
GSW website: <>

PGS: Krohn on land seismic data complexity

SEG Honorary Lecturer Dr. Christine Krohn will speak on:

The complexity just below our feet and the implications for the fidelity of land seismic data

Dr. Krohn will be speaking at the Potomac Geophysical Society meeting on November 8th at the Tysons Corner DoubleTree hotel.

Meeting Location:

  • DoubleTree by Hilton McLean Tysons
  • 1960 Chain Bridge Road, McLean, VA 22102
  • Hotel is located within one-half mile of the Tysons Corner Metro station, near I-495 and Rt. 123, and has free parking garage available
  • Our private meeting room is located at the back of the Harvest Café restaurant on the second floor of the hotel
  • Social time is typically held in O’Malley’s Pub on the first floor of the hotel


  • Members and guests may attend any presentation after dinner for no charge
  • The optional three course dinner cost is discounted to $30 for members in good standing (having paid dues) and for students, is $40 for non-members, and is inclusive of iced tea, coffee, tax and gratuity
  • Alcoholic beverages may be purchased in the private meeting room on a cash basis
  • Dinner service begins at 7 PM and we estimate that the presentation begins at about 8:15 PM. For attendees who arrive early, social time begins about 6 PM
  • To RSVP, please write to

Gene Likens: inaugural Helz lecture

The University of Maryland’s Department of Geology hosts its inaugural Helz Lecture on October 18th, and we hope that you can join us.  The Helz Lecture is a new lecture series graciously supported by Drs. George and Rosalind Helz.
Our first speaker will be Dr. Gene Likens.  Dr. Likens and his team were the first to discover the regional effects of acid rain in North America.  The title of the talk will be:  “Acid Rain:  A long and unfinished journey from discovery to political action.”  Dr. Likens is a member of the National Academy of Science and is a recipient of the National Medal of Science among many other honors.  In addition to his research, he also currently teaches a course in science ethics at the University of Connecticut and enjoys interacting with students.
There will be a catered reception prior to the Helz Lecture at 5 pm in the new Edward St. John Learning and Teaching Center, 2nd Floor Lounge.  The lecture will begin at 5:30 pm in Edward St. John Learning and Teaching Center Room 2204.  A link providing further details can be found at:
Everyone is invited to the inaugural Helz Lecture, and it is open to the public.  It should be interesting and fun.  Please feel free to share widely with your students, classes, colleagues, and friends.