SCEC Dynamic Rupture Group Ingredients Workshop on Fault Geometry
Conveners: Ruth Harris and Michael Barall
Dates: November 30, 2018
Location: Kellogg West Conference Center, Pomona, CA
SCEC Award and Report:18217
SUMMARY: The SCEC Dynamic Rupture Group will convene a workshop in 2018 to start an in-detail examination of the essential ingredients needed to understand earthquakes and produce viable large-earthquake source simulations. In 2018, we will focus on fault geometry. We have invited speakers from both outside and inside our group to present their ideas about the role(s) of fault geometry, both the small scale and the big scale, in determining rupture extent, ground shaking, and seismic hazard. We have knowledge that complex geometry at all scales exists in the field (e.g., Segall and Pollard, 1980 and references therein; Candela et al., 2012, etc.), and we can computationally simulate this roughness at some scales (e.g., Duru and Dunham, 2016; Shi et al., 2013, Ulrich and Gabriel, 2017), but we need to know if fault geometry at all scales makes a difference for earthquake source features such as rupture extent, and if it makes a difference for hazard.
FRIDAY, NOVEMBER 30, 2018
09:00 - 09:30 | Workshop Check-In | |
Session 1: Overview, Motivation, and Desired Outcomes | ||
09:30 - 09:45 | Welcome and Overview of Workshop Objectives, Introductions | Ruth Harris |
Session 2: What Does Fault Geometry Look Like? | ||
09:45 - 10:10 | Observations from the Field - Big Scale - Community Fault Model (CFM) (PDF, 1.5MB) | Craig Nicholson |
10:10 - 10:35 | Inferences from the Field - Big Scale - Effects of Geometry on Earthquake Ruptures (PDF, 2.5MB) | Glenn Biasi |
10:35 - 11:00 | Observations from the Field - Big and Small Scale | Jamie Kirkpatrick |
11:00 - 11:15 | Discussion - Observations | All |
11:15 - 11:30 | Break | |
Session 3: Fault Geometry Applications - Hazards | ||
11:30 - 11:55 | Fault Geometry Decisions and Alquist Priolo (PDF, 1.8MB) | Tim Dawson |
11:55 - 12:20 | Fault Geometry Decisions and UCERF3 (Rupture Extent) | Morgan Page |
12:20 - 12:30 | Discussion | All |
12:20 - 13:30 | Lunch | |
Session 4: Fault Geometry Applications - EQ’s and Scenarios | ||
13:30 - 13:55 | Fault Geometry Effects and the 1992 Landers earthquake | Stephanie Wollherr |
13:55 - 14:20 | The role of 3D fault geometry in the rupture propagation and arrest during the 2016 Kaikoura (New Zealand) earthquake (PDF, 1.5MB) | Yoshi Kaneko |
14:20 - 14:45 | Large EQ Scenarios for the Eastern San Gorgonio Pass | Roby Douilly |
14:45 - 15:10 | Large Earthquakes Near Cajon Pass | Julian Lozos |
15:10 - 15:25 | Break | |
15:25 - 15:50 | Earthquake Rupture on 3D Rough Faults (PDF, 1.9MB) | Steve Day |
15:50 - 16:15 | Fault Geometry and Multi-Cycle Models: From Single-Event Dynamics to Multicycle Dynamics of Geometrically Complex Faults (PDF, 9MB) | Ben Duan |
16:15 - 16:40 | Fault Geometry and Ground Motions | Ralph Archuleta |
16:30 - 17:30 | Discussion and Future Plans | All |
17:30 | Workshop Adjourns |
PARTICIPANTS
*Pablo Ampuero (Caltech)
*Ralph Archuleta (UCSB)
Khurram Aslam (Memphis)
Michael Barall (Invisible Software)
*Rafael Benites (GNS Science)
Glenn Biasi (USGS, Pasadena)
*Michele Cooke (UMass, Amherst)
Luis Dalguer (3Q-Lab)
Tim Dawson (CGS)
Steve Day (SDSU)
Roby Douilly (UCR)
Ben Duan (TAMU)
*Kenneth Duru (LMU Munich)
*Brittany Erickson (Portland State)
*Alice Gabriel (LMU)
Hector Gonzalez-Huizar (UTEP)
Christine Goulet (SCEC)
Ruth Harris (USGS, Menlo Park)
*Evan Hirakawa (USGS)
Feng Hu (USTC/UCR)
*Zhifeng Hu (UCSD)
Tran Huynh (SCEC)
Junle Jiang (Cornell Univ.)
*Yoshi Kaneko (GNS, NZ)
*Yuko Kase (AIST, GSJ, Japan)
Jamie Kirkpatrick (McGill)
Jeremy Kozdon (NPS)
*Nadia Lapusta (Caltech)
Julian Lozos (CSUN)
*Bin Luo (TAMU)
*Shuo Ma (SDSU)
Xiao Ma (UIUC)
*Phil Maechling (SCEC)
Craig Nicholson (UCSB)
David Oglesby (UCR)
Kim Olsen (SDSU)
Morgan Page (USGS, Pasadena)
Edric Pauk (SCEC)
Arben Pitarka (LLNL)
Daniel Roten (SDSU)
*Surendra Somala (IIT Hyderabad)
John Vidale (USC)
Nan Wang (SDSU)
Yongfei Wang (SDSU/UCSD)
Kyle Withers (USGS, Golden)
*Stephanie Wollherr (LMU)
Baoning Wu (UCR)
*Zhang Zhenguo (SUSTech)
*Remote Participants