September 2019, Earthquake Engineering Research Institute.
This symposium focused on the 2018 M7.1 Anchorage Earthquake and its consequences, highlighted the research that has already occurred in the past year and stimulated new investigations and collaborations to make the most of this learning opportunity.
This symposium fostered the development of cross-disciplinary research agendas by showcasing a broad set of observations in a single symposium venue.
The symposium covered a wide range of topics, including but not limited to: seismology, geology, ground motion, structural and geotechnical engineering, lifelines, public health, emergency management and response, tsunami monitoring and modeling, school safety, and public policy. The symposium drew on local and national experts in a wide range of disciplines related to earthquake research and practice.
The program for the Symposium is available here. Presentations and Posters presented in the Symposium are available for download on this page.
SEPTEMBER 24
Opening Plenary: This session included welcoming remarks and presentations from state and local officials.
Moderator:
– Michael West, Alaska Earthquake Center
Speakers:
– Kevin Meyer, Lt. Governor of Alaska
– Ethan Berkowitz, Mayor of Anchorage
– Bill Falsey, Municipal Manager
– Mike O’Hare, FEMA Region 10
– Lisa Murkowski, U.S. Senate (via video)
Breakout Sessions #1
Tectonics, Aftershocks, and Future Hazards: This session highlighted the nature of the earthquake rupture and the accompanying aftershocks. Speakers tied observations to the potential implications of this earthquake for our understanding of the regional tectonic setting and the future earthquake hazard.
Moderators / Speakers:
Speakers:
Geotechnical Engineering: Infrastructure Damage: This session focused on geotechnical observations of infrastructure damage. Topics included roadway embankments, bridges, and the Port of Alaska.
– Sharen Walsh, Port of Alaska
– Kyle Brennan, Shannon & Wilson
– Thomas Keatts, Shannon &Wilson
Structural Engineering Impacts: This session highlighted the structural damage, primarily to privately owned structures, observed during the earthquake in different structure types including single-family housing, office, and tall buildings, hospitals, and instrumented buildings. Damage in earthquake-resistant, older structures, and pre-event retrofitted buildings will be discussed.
– Wael Hassan, University of Alaska Anchorage
– Jake Horazdovsky, PDC Engineers
Emergency Management: As soon as the ground stopped shaking, emergency managers across southcentral Alaska broke out contingency plans and stood up their incident management teams. Over the next few days and weeks, emergency operations centers worked tirelessly to guide their organizations through responding to damage, recovering business operations, and communicating to the public. This session explored the challenges and success of emergency managers as the responded to this earthquake. State and Borough-level emergency managers will describe their operational functions and lessons learned. Also, we learned about potential improvements for emergency management in Alaska based on successful programs in other regions.
– Bryan Fisher, AK DHS&EM
– Dan Belanger, AK DHS&EM
Lunch: Managing students, parents, and schools after the earthquake: During lunch, speakers presented on earthquake impacts to schools in Anchorage and the Matanuska-Susitna Valley.
– Janise Rodgers, GeoHazards International
– Deena Bishop, Anchorage School District Superintendent
– Monica Goyette, Mat-Su School District Superintendent
Breakout Sessions #2
Public Health & Social Impacts: This session included presentations on the public health and social impacts of the earthquake. Topics included an overview of public health impacts, shelters, epidemiology, economic impacts, and environmental impacts.
– Maggie Ortiz-Millan, EERI
– Silvana Cobos, EERI
– Leremy Colf, Department of Health and Human Services
– Bill Popp, Anchorage Economic Development Corporation
– Louisa Castrodale, laska Health and Human Services
– Todd Lecours, Alaska Department of Health and Social Services
– Kara Cahill, Mat-Su Regional Medical Center
Geotechnical Engineering: Ground Failure Observations and Impacts: This session focused on geotechnical reconnaissance, ground failure observations, and impacts to residential and commercial structures.
– Jessica Feenstra, Golder
– Utpal Dutta, University of Alaska Anchorage
Structural Engineering Impacts: Performance of Nonstructural Elements: The widespread disruptive non-structural damage observed after the earthquake were presented in this session. This included damage to industrial facilities, hospitals, and schools, tall buildings, and multi-story office buildings. The effect of widespread building flooding and equipment and utility damage were discussed.
– Wael Hassan, University of Alaska Anchorage
– Randy Williams, PDC Engineers
– Tom Roth, Anchorage School District (click to view maps)
– Michael Brown, Mat-Su School District
– Bart Meinhardt, Anchorage Fire Department
Response of Agencies: The earthquake triggered a significant response effort from owners of our roads and buildings. This session reviews the process of inspections, damage identification, and repair to public facilities such as schools and roads.
– Sterling Strait, Alyeska Pipeline Service Company
– Dan Monteleone, AK DOT&PF
Plenary: Day One Summary: This session summarized highlights and major lessons learned during the first day of the meeting.
– Maggie Ortiz-Millan, EERI
– Peter Haeussler, USGS
– Jessica Feenstra, Golder
– Wael Hassan, University of Alaska Anchorage
– Sterling Strait, Alyeska Pipeline Service Company
– Amanda Siok, FEMA Region 10
Lightning Presentations and Poster Session
SEPTEMBER 25
Plenary: Perspectives from the NEHRP Agencies: This morning plenary session highlighted perspectives from the National Earthquake Hazards Reduction Program agencies.
– Heidi Tremayne, EERI
– William Leith, USGS
– Joy Pauschke, NSF
– Steve McCabe, NIST
– Mike Mahoney, FEMA
Breakout Sessions #3
Impacts to Lifelines and Utilities: This morning plenary sessions highlighted perspectives from the National Earthquake Hazards Reduction Program agencies.
– Tom Koloski, APIP – AK DHS&EM
– Lance Lampert, Anchorage Water & Wastewater Utility
Ground Motions: Observed and Predicted: This session focused on the patterns of ground shaking across south-central Alaska, and the degree to which these patterns matched what would have been anticipated for this earthquake source.
– Natalia Ruppert, Alaska Earthquake Center
– Matt Gardine, Alaska Earthquake Center
Mitigation Opportunities: There are tools and resources in place to reduce damages from earthquakes and other hazards before they happen. This session reviewed these tools and discuss opportunities for improvement as identified by the AK EERI Clearinghouse. This includes increased engagement for hazard mitigation plans, support for vulnerability assessments, and strengthening local codes and standards to improve resilience.
– Amanda Siok, FEMA Region 10 Earthquake Program Manager
– John Schelling, FEMA Region 10 Mitigation Planning Manager
– Laura Kelly, Alaska Seismic Hazards Safety Commission
Lunch: Panel discussion on communications and the media following the earthquake: Each panelist received about five minutes to share lessons from or their experiences with communications and media following the earthquake. Audience questions will be encouraged following panelist remarks.
– Michael West, Alaska Earthquake Center
– Kasey Aderhold, Incorporated Research Institutions for Seismology (IRIS)
– Vicky Ho, Anchorage Daily News
– Lori Townsend, Alaska Public Media
– Meadow Bailey, Alaska DOT
– Kristin DeSmith, Anchorage Mayor’s Office
Day 2 Plenary: Building Codes: This session included a panel discussion on building code adoption an implementation with state and local officials.
– Amanda Siok, FEMA Region 10
– Leslie Chapman-Henderson, FLASH
– Colin Maynard, SEEAK/APDC
– Ross Noffsinger, Muni
– Andre Spinelli, Spinell Homes/ Anchorage Home Builders Association
– Kristin DeSmith, Anchorage Mayor’s Office
Day 2 Plenary: The Alaska Seismic Hazard Map: The USGS is updating its seismic hazard model for Alaska. In this session, we: (1) reviewed the previous hazard model (Wesson and others, 2007, USGS Open-file Report 2007-1043) and discussed our approach to the update, (2) discussed recent research, (3) discussed the ongoing NOAA/USGS/FEMA tsunami modeling project, and (4) solicited new ideas and information for both seismic sources and ground motions. Elements of the Alaska source model up for discussion included: earthquake catalogs and related catalog-based sources (including recurrence and maximum-magnitude models with possible regionalization), crustal faults, megathrust faults (including segmentation and coupling), the role of GPS, and possible applications for Slab 2.0 and a UCERF-like inversion approach.
– Mark Petersen, USGS
Closing Plenary: This session summarized highlights, major lessons learned, research needs, and next steps during the meeting.
– Maggie Ortiz-Millan, EERI
– Keith Knudsen, USGS
– Jessica Feenstra, Golder
– Wael Hassan, University of Alaska Anchorage
– Sterling Strait, Alyeska Pipeline Service Company
– Tom Koloski, APIP-AK DHS&EM
POSTERS
|
Presenter |
Affiliation |
Poster Title |
|
Mehmet Celebi |
U.S. Geological Survey |
A cursory study of the behavior of three instrumented buildings during the recent M7.1 Anchorage, AK, earthquake of November 30, 2018. |
|
Randall W. Jibson |
U.S. Geological Survey |
|
|
John Dai |
Southern California Edison |
Performance of Lifelines in 2018 Anchorage Earthquake. |
|
Morgan Moschetti |
U.S. Geological Survey |
Amplification of ground motions by Cook Inlet basin, Alaska, from intermediate-depth earthquakes. |
|
Ivan Wong and Patricia Thomas |
Lettis Consultants International |
Site-specific seismic hazard analyses in anchorage and comparison with the 2018 anchorage m 7.1 Earthquake. |
|
Bruce Maison, John Eidinger, John Dai |
Consulting Engineer |
Chimney and Mobile Home Performance in 2018 Anchorage Earthquake. |
|
Kasey Aderhold |
Incorporated Research Institutions for Seismology (IRIS) |
Improved Earthquake Monitoring with EarthScope’s Alaska Transportable Array. |
|
David Askov |
FEMA Region 10 |
Earthquake Resiliency and Building Code Enforcement, Is there a Connection? |
|
Ken Austin |
UNAVCO, Inc. |
The NSF GAGE Facility Response to the 2018 M7.1 Anchorage Earthquake. |
|
Kristen Keifer |
HDR on behalf of DOT&PF |
|
|
Daniel E. McNamara |
U.S. Geological Survey NSHMP |
Evaluation of ground-motion models for USGS seismic hazard Models: 2018 Anchorage Alaska Mw 7.1 subduction zone earthquake sequence. |
|
Chris H. Cramer |
CERI University of Memphis |
|
|
Michael L. Blanpied |
U.S. Geological Survey Earthquake Hazards Program |
The USGS Aftershock Forecasts After the M7.1 Anchorage, Alaska, Earthquake of 30 November 2018. |
|
Jovan Tatar |
University of Delaware |
Performance of Externally Bonded Fiber-Reinforced Polymer Composite Retrofits in Reinforced Concrete Structures in 2018 Anchorage, AK Earthquake. |
|
Doug Bausch1, Jordan Burns1, Sean McNabb2, and Jesse Rozelle2 |
1- NiyamIT, Inc., Washington, D.C. 2- FEMA Natural Hazards Risk Assessment Program, Washington, D.C. |
|
|
Sterling Strait |
Alyeska Pipeline Service Company |
Trans Alaska Pipeline Response to 2018 Anchorage Earthquake. |
|
Lea Gardine |
Alaska Earthquake Center University of Alaska Fairbanks |
Developing public-friendly science content following the M7.1 Anchorage Earthquake. |
|
Janise Rodgers |
GeoHazards International |
Impacts of the M7.1 November 30, 2018, Anchorage Earthquake on Schools. |
|
Justin Lobdell |
University of Alaska Anchorage |
University of Alaska Anchorage Engineering and Industry Building Seismic Analysis. |
|
Charles Pappas |
University of Alaska Anchorage |
Seismic Analysis of the UAA Engineering and Industry Building. |
|
John Eidinger |
G&E Engineering Systems Inc |
Performance of the Point Mackenzie Substation. |
