Meeting Abstracts

The Statewide California Earthquake Center (SCEC) collaborates with academic, government, industry, and other organizations to advance earthquake science, community resilience, and education by: (1) Gathering and analyzing data from field observations and laboratory experiments. (2) Developing system-level models and simulations of earthquake processes to synthesize knowledge as a physics-based understanding of seismic hazard. (3) Communicating that understanding to expand knowledge and reduce earthquake risk.

Participants are invited to present recent work aligned with SCEC priorities during the poster sessions.

Results 151-200 of 281

SCEC ID	Category	Title and Authors	SCEC Award
Group A Poster 323	CEM	Updates to the SCEC Geologic Slip Rate Database (GSRD) Sally McGill, Alex Hatem, Scott Marshall, Miranda Owen, Maria Mendoza Gutierrez, Mei-Hui Su, Philip Maechling The first version of the SCEC Geologic Slip Rate Database (GSRD) was released in summer 2023. Here, we report on updates to the GSRD. The GSRD currently consists of spatially registered geologic fault slip rate estimates from previously published... more Themes: Improving Observations and Closing Data Gaps	25121
Group A Poster 103	Geology	Progress validating physics-engine simulations of precariously balanced rocks for hazards applications Devin McPhillips, Zhiang Chen, Kari Klaboe Precariously balanced rocks may be used to constrain maximum shaking intensity over timescales at which damaging earthquakes recur. Developing such valuable data requires estimating a precariously balanced rock’s fragility, which we define as the... more Themes: Improving Observations and Closing Data Gaps
Group B Poster 108	Geology	Does Singapore have active faults? Geological investigations in an unprepared, urbanized tropical city–state Aron Meltzner, Wanxin Huang, Matthew Xiang Hua Foo, Mason Perry Singapore, a highly urbanized city–state of 6 million on a ~730 km2 island, is commonly believed to be “safe” from local earthquakes, with only distant Sumatran earthquakes thought to affect it. This view likely arises from the scarcity of recorded... more Themes: Improving Observations and Closing Data Gaps
Group A Poster 243	GM	Validation of two new CyberShake studies in California Xiaofeng Meng, Robert Graves, Scott Callaghan The SCEC CyberShake platform is a 3D physics-based ground motion simulation platform developed for seismic hazard analysis. Previous CyberShake studies predict higher median ground motions relative to NGA-West2 Ground Motion Models (GMMs). Since... more Themes: Improving Observations and Closing Data Gaps
Group A Poster 073	Geodesy	Total Surface Displacement from Geodetic Imaging Refines Fault Scaling Relations for Continental Strike-Slip Earthquakes: Implications for shallow slip deficits and Constant Stress Drops Chris Milliner, Jean-Philippe Avouac, Brian Chiou, Rui Chen Fault scaling relationships underpin seismic hazard estimates of expected magnitudes and source properties and inform fundamental questions about earthquake mechanics—such as whether stress drops are constant across magnitudes (scale invariance) or... more Themes: Improving Observations and Closing Data Gaps
Group A Poster 193	EFP	Multifault rupture rates and uncertainties in PSHA: an NSHM23 case study for the Santa Barbara-Ventura region Kevin Milner, Edward Field Inclusion of multifault ruptures can strongly affect hazard estimates near interconnected fault systems. Despite numerous observations in nature, few data are available to constrain their prevalence for specific fault-pairs or regions. The 2023... more Themes: Advanced Modeling Frameworks \| Applied Science Implementation
Group B Poster 002	Seismology	Long-term repeating earthquakes and physical drivers of the 2022 Ferndale and 2024 Offshore Cape Mendocino earthquake sequences Saeed Mohanna, Grant Kawamoto, Lingsen Meng, Max Liu, John Wellik, Roland Bürgmann The Mendocino Triple Junction (MTJ), where the Pacific, Juan De Fuca, and North American tectonic plates meet, is a geometrically complex region that has experienced several recent episodes of intense seismicity. The 2022 Mw 6.4 Ferndale earthquake... more Themes: Improving Observations and Closing Data Gaps \| Research Computing & Cyberinfrastructure
Group A Poster 339	CEM	Reconciling the Geological Framework (GFM) with the Community Fault Model (CFM) Laurent Montesi, Andreas Plesch, John Shaw The Geological Framework (GFM) describes California as a collection of lithotectonic blocks, each with an ascribed geological column through the crust. This model intends to provide sufficient lithological information to assign material properties,... more Themes: Advanced Modeling Frameworks \| Research Computing & Cyberinfrastructure	25312, 25340
Group A Poster 187	FARM	How rupture velocity variations modify earthquake source parameter estimations Doron Morad, Shahar Gvirtzman, Yael Gil, Jay Fineberg, Emily Brodsky Seismic waves remain the primary observational tool for probing the rupture dynamics of earthquakes. Source parameters such as seismic stress drop and seismic moment are typically inferred from the source time function derived from far-field ground... more Themes: Improving Predictive Analyses of Seismicity	24172
Group B Poster 044	Seismology	Probing Seismicity Secrets with Five Nodal Arrays around the San Jacinto Fault Taiga Morioka, Florent Brenguier, Elizabeth Cochran, Wenyuan Fan, Quentin Higueret, Dan Hollis, Peter Shearer, Frank Vernon, John Vidale, Ruoyan Wang, Hao Zhang Clarifying the relationship between frequent small earthquakes and the much rarer large earthquakes is fundamental to understanding fault mechanics and earthquake nucleation, yet this connection remains elusive. More complete catalogs allow us to... more Themes: Improving Observations and Closing Data Gaps
Group A Poster 245	GM	Ground-motion variability in SCEC CyberShake Morgan Moschetti, Scott Callaghan, Kyle Withers, Xiaofeng Meng, Robert Graves We analyze the simulated ground motions from CyberShake version 22.12 to identify the controlling features of variability from three-dimensional (3D) ground-motion simulations. Low-frequency CyberShake results (T≥2 s) consist of pseudospectral... more Themes: Improving Predictive Analyses of Seismicity \| Applied Science Implementation
Group A Poster 035	Seismology	Characterizing the spatial and temporal behavior of deep tectonic tremor along the Nankai Trough Sirena Motter, Gaspard Farge, Emily Brodsky Tectonic tremor is a weak seismic signal composed of several low-frequency earthquakes not felt on the surface. It occurs in the quiet periods between large earthquakes as plates slip slowly past each other deep in subduction zones, often in... more Themes: Improving Observations and Closing Data Gaps
Group B Poster 062	Geodesy	The potential for improved ShakeAlert earthquake early warning using real-time distributed slip models Jessica Murray The ShakeAlert® earthquake early warning (EEW) system uses multiple algorithms based on seismic or geodetic data to infer earthquake magnitude and location. This information is used to calculate anticipated shaking intensity at user locations, and... more Themes: Applied Science Implementation
Talk Wed0800	GM	Simulating Seismic Wavefields using Generative Artificial Intelligence Rie Nakata, Nori Nakata, Pu Ren, Zhengfa Bi, Maxime Lacour, Michael Mahoney Realistic seismic wavefield simulation is essential for numerous applications, including acquisition design, imaging, and inversion. However, traditional numerical simulators are computationally intensive for large-scale 3D models and often yield... more Themes: Advanced Modeling Frameworks \| Research Computing & Cyberinfrastructure	25303, 24123
Group B Poster 086	PBS	Analysis of the 2025 Kamchatka, Russia earthquake sequence: Preliminary results Kazuyoshi Nanjo, Joe Yazbeck, John Rundle We studied seismicity before and after the July 29, 2025, M8.8 earthquake striking offshore the Kamchatka peninsula in Russia, using the ANSS earthquake catalog (M>=4.5). This earthquake occurred in a seismically active region along the Kuril-... more Themes: Improving Observations and Closing Data Gaps \| Advanced Modeling Frameworks \| Improving Predictive Analyses of Seismicity
Group B Poster 242	GM	Frequency-Dependent Comparison of Vs30 and Site Period (Ts) as Predictors of Earthquake Ground Motion Intensity Measures Joy Ndamukunda, Chunyang Ji, Yongfei Wang Most existing studies use Vs30, the time-averaged S-wave velocity for the top 30 m of soils, as the site proxy to develop the site terms of the Ground Motion Model (GMMs). However, Vs30 is only related to the influence of shallow site conditions on... more Themes: Improving Observations and Closing Data Gaps \| Advanced Modeling Frameworks
Group A Poster 331	CEM	Observations Relating to 3D Fault Geometry and Seismic Hazard in the Santa Barbara-Ventura Area: Findings from the SCEC Commemorative 1925 Santa Barbara Earthquake Workshop Craig Nicholson, Chen Ji, Larry Gurrola, Marc Kamerling, Christopher Sorlien, Kaj Johnson A field trip and workshop were held to commemorate the 1925 M6.5 Santa Barbara earthquake and to better understand the active fault systems in the Santa Barbara-Ventura area. Principal findings include: major onshore faults are steeply (>60°) S-... more Themes: Improving Observations and Closing Data Gaps \| Improving Predictive Analyses of Seismicity \| Outreach and Community Engagement	25139
Group A Poster 227	GM	Developing Spatially Continuous Site Terms for Ground Motion Models Across the U.S. Shiying Nie, Maggie Roberts, Elise Meyer, Laurie Baise, Albert Kottke, James Kaklamanos, Weiwei Zhan In ground motion models (GMMs), site terms are typically derived from site-specific geotechnical parameters such as VS30 (time-averaged shear-wave velocity to 30 m) and Z1.0 (depth to the 1.0 km/s shear-wave velocity horizon). However, these... more Themes: Advanced Modeling Frameworks \| Improving Predictive Analyses of Seismicity
Group A Poster 055	Seismology	Temporal evolution of local seismicity along the Sagaing fault with reference to the March 2025 M7.7 Myanmar earthquake sequence Shankho Niyogi, Abhijit Ghosh We analyze continuous waveforms from the sparse set of permanent stations in Myanmar spanning 2016-2025 to investigate temporal changes in local event rates with reference to the 2025 March Mw 7.7 mainshock on the Sagaing Fault. We detected local... more Themes: Improving Observations and Closing Data Gaps \| Research Computing & Cyberinfrastructure
Group B Poster 250	GM	Influence of Key Modeling Parameters on Bias in Physics-Based 3D Ground Motion Simulations Chukwuebuka Nweke, Sajan K C, Robert Graves, Jonathan Stewart Physics-based 3D ground motion simulations are widely used to study earthquake source processes and assess seismic hazard, but few validation studies have systematically examined how modeling choices contribute to bias in outputs used for... more Themes: Improving Observations and Closing Data Gaps \| Advanced Modeling Frameworks \| Research Computing & Cyberinfrastructure	22160, 24062
Group B Poster 316	CEM	Evaluation of 3D Seismic Velocity Models in the San Francisco Bay Area using Observed Ground Motions Tara Nye, Grace Parker, Evan Hirakawa, Annemarie Baltay, Kyle Withers, Morgan Moschetti We compare structural differences between two 3D velocity models and evaluate how well they model observed ground motions in the San Francisco Bay Area (SFBA). Seismic velocity models are a necessary input for simulating ground motions, affecting... more Themes: Improving Predictive Analyses of Seismicity \| Applied Science Implementation
Group A Poster 235	GM	QuakeMap: An AI-Powered Multimodal Earthquake Assessment Platform for Data-Scarce Regions Khant Nyi Hlaing, Susan Hough, Clara Yoon, Aarnav Agrawal, S. Mostafa Mousavi, Salvador Blanco Instrumental seismic data remains limited in many parts of the world, including Myanmar. This makes it difficult to assess the impacts of earthquakes and can delay emergency response. This study presents a cloud-native platform that leverages Large... more Themes: Improving Observations and Closing Data Gaps
Group A Poster 093	Geology	Puzzling Permeabilities: In Situ Permeability Measurements at the Punchbowl Fault, California Lisette Ochoa, Noah Phillips, Montserrat De Allende Silva Faults serve as permeable structures through the upper crust due to increased fracture densities within fault damage zones. While many studies have used measurements of fracture density to infer permeabilities of exhumed faults, measurements of in... more Themes: Improving Observations and Closing Data Gaps \| Developing Rheologies and Bridging Multi-Scales
Group A Poster 167	FARM	Dynamic models of branching faults and surface rupture in the Signal Hill Stepover on the Newport-Inglewood Fault, Southern California David Oglesby, Natasha Toghramadjian, Andreas Plesch, John Shaw, Wenqiang Zhang The right-lateral Newport-Inglewood Fault (NIF) system cuts across the highly populated Los Angeles (LA) metropolitan area. A segment of the fault sourced the highly destructive 1933 MW 6.4 Long Beach Earthquake, and the system poses significant... more Themes: Advanced Modeling Frameworks \| Research Computing & Cyberinfrastructure	24126
Group B Poster 188	FARM	Dislocation Density as a Control on the Frictional Strength of Fault Gouge Kristina Okamoto The frictional behavior of fault gouge is frequently modeled with the empirical rate-state frictional law. However, the frictional parameters that are determined by this method are only valid at the exact conditions at which experiments were... more Themes: Developing Rheologies and Bridging Multi-Scales
Group B Poster 164	FARM	Rupture Velocity Dependence of Fracture Energy for Sub-Rayleigh Ruptures on a 6-Meter-Long Laboratory Fault Kurama Okubo, Futoshi Yamashita, Yoshiaki Matsumoto, Eiichi Fukuyama Fracture energy governs the earthquake rupture process from nucleation and propagation to arrest. Whether it can serve as an intrinsic constant associated with the physical state of the fault surface is of great interest for describing the rupture... more Themes: Improving Observations and Closing Data Gaps \| Developing Rheologies and Bridging Multi-Scales
Group B Poster 322	CEM	Preliminary Multi-scale Community Velocity Model for Southern California Improves Fit to Seismic Recordings Kim Olsen, Te-Yang Yeh SCEC Community Velocity models (CVMs) are a great resource for ground motion modeling, but the accuracy of the resulting ground motions is limited by their generally coarse resolution. However, recent studies have shown that multi-scale models (e.g... more Themes: Developing Rheologies and Bridging Multi-Scales \| Advanced Modeling Frameworks \| Improving Predictive Analyses of Seismicity	24155
Group B Poster 240	GM	Application of Data-Driven Approaches for Estimation of Site Response Utilizing mHVSR and Soil-Based Proxies in California Francisco Javier Ornelas, Christopher de la Torre, Tristan Buckreis, Chukwuebuka Nweke, Scott Brandenberg, Jonathan Stewart Ergodic models for predicting linear site amplification commonly rely on simple scalar proxies, such as the time-averaged shear-wave velocity in the upper 30 meters of the subsurface (VS30). These parameters are incorporated into ground motion... more Themes: Improving Observations and Closing Data Gaps \| Improving Predictive Analyses of Seismicity \| Education and Workforce Development
Talk Tue1400	CEM	California’s Geological Framework and Consequent Fault-System Behavior Michael Oskin, Sierra Rack, Ryan Lynch, Mark Legg The Pacific-North America transform plate boundary fault system spans the length of California, from the Gulf of California rift to the Cascadia subduction zone. The lithosphere traversed and modified by this system reflects over 250 Myr of prior... more Themes: Developing Rheologies and Bridging Multi-Scales	25264, 25262
Group A Poster 191	EFP	Testing Magnitude Distributions Near Faults in Modern PSHA Models Morgan Page, Kevin Milner Some large, mature faults, such as the San Andreas fault in California, have low rates of recent seismicity compared to the geologically inferred rate of large earthquakes. This discrepancy led to the characteristic magnitude distribution hypothesis... more Themes: Advanced Modeling Frameworks \| Improving Predictive Analyses of Seismicity
Group A Poster 053	Seismology	Aftershock imaging with a rapid response array for the April 14, 2025 magnitude 5.2 Julian, California earthquake Binayak Parida, Abhijit Ghosh, Shankho Niyogi, Heather Ford, Guadalupe Bravo, Ashley Stroup, Adam Margolis, Axel Periollat, Shiori Nakaya, Rebecca Leung On April 14, 2025, an Mw 5.2 earthquake occurred about 5 km south of Julian, California (U.S. Geological Survey). The hypocenter was about 14 km deep. Julian lies in the Peninsular Ranges between the Elsinore and San Jacinto fault systems. Around... more Themes: Improving Observations and Closing Data Gaps \| Research Computing & Cyberinfrastructure
Group A Poster 249	GM	Preliminary Empirical Models for Effective Amplitude Spectra based on the NGA-West3 Dataset Grace Parker, Gail Atkinson, Annemarie Baltay, David Boore, Tristan Buckreis, Jonathan Stewart We develop a global earthquake ground motion model (GMM) for effective amplitude spectra (EAS, the smoothed quadratic mean of two horizontal-component Fourier amplitude spectra) as part of the Next Generation Attenuation (NGA) West3 project. The... more Themes: Applied Science Implementation
Group B Poster 330	CEM	Calibration of the Near-Surface Seismic Structure in the San Francisco Bay Area Velocity Model Anupam Patel, Kim Olsen The near-surface seismic structure to depths of around 1–2 km, and specifically shear wave velocity (Vs), strongly modulates the seismic response. In tomographically derived Earth models, however, properties of the shallow (< ∼2 km) subsurface... more Themes: Advanced Modeling Frameworks \| Improving Predictive Analyses of Seismicity \| Research Computing & Cyberinfrastructure	25291
Group B Poster 180	FARM	Impact of material properties on Bay Area rupture dynamics Ritwik Patil, Elizabeth Madden Northern California’s Bay Area lies along the Pacific North American plate boundary, placing millions of residents at risk from seismic activity. To assess rupture dynamics of the region, we constructed a high-resolution, 3D structural model and... more Themes: Advanced Modeling Frameworks
Group B Poster 012	Seismology	The Rock Valley Direct Comparison: Deep Core Drilling in a Unconstrained Fault Zone and Seismometer Emplacement Colin Pennington, William Walter, Catherine Snelson, Robert Abbott, A. Christian Stanciu, Andrew Miller, Jessie Pine, C Freimuth, Ken Gaynor, Chris Carr, Jonathan Falliner, C Jewell, Ethan Alger, Matthew Dietel, Jessie Bonner, Ken Smith, Moira Pyle The Rock Valley Direct Comparison (RV/DC) project seeks to understand the differences between the seismic waves generated by earthquakes and explosions. To achieve this goal the experiment plans for a chemical explosion at the same depth and... more Themes: Improving Observations and Closing Data Gaps \| Developing Rheologies and Bridging Multi-Scales
Group A Poster 171	FARM	Metropolis–Hastings BEM Inference of Interseismic Coupling on the Kamchatka Subduction Zone and Its Connection to the 2025 Megathrust Earthquake Axel Periollat, Gareth Funning On July 30, 2025, a Mw 8.8 megathrust earthquake ruptured the central segment of the Kamchatka subduction zone, following a sequence of moderate foreshocks in the preceding weeks. This segment had remained seismically quiet since the last great Mw 9... more Themes: Advanced Modeling Frameworks \| Improving Predictive Analyses of Seismicity
Group B Poster 166	FARM	Exploring the Cross-Fault Rupture Zone of the 2020 Mw 6.5 Monte Cristo Range Earthquake of the Central Walker Lane Patricia Persaud, Joses Omojola, Rufus Catchings, Mark Goldman The Walker Lane and Eastern California Shear Zone can be considered a natural laboratory outside the most populated regions of California to investigate issues of seismicity and fault mechanics, which are important for understanding the seismic... more Themes: Improving Observations and Closing Data Gaps \| Developing Rheologies and Bridging Multi-Scales \| Advanced Modeling Frameworks	25192
Group B Poster 118	Geology	Expression of the creeping San Andreas Fault at the Topo Creek site Belle Philibosian, Jessie Vermeer, Charles Trexler, Austin Elliott, Travis Alongi, Morena Hammer, Catherine Hanagan, Stephen DeLong The 150-km-long creeping section of the San Andreas Fault separates two sections that are mostly or entirely interseismically locked and known to host large M7+ earthquakes, notably in 1906 and 1857. The creeping section moves gradually at nearly... more Themes: Improving Observations and Closing Data Gaps
Group B Poster 182	FARM	Constraining Rupture-Generator Scaling Using Measured Surface Offseta, Near-Fault Ground Motions and Rupture Dynamic Simulations Camilo Ignacio Pinilla Ramos, Norman Abrahamson This study shows evidence based on near-fault ground motions and surface offset that regions with larger-than-average surface offset exhibit weaker ground motions for frequencies above 0.5~Hz. This negative correlation of surface offset and high-... more Themes: Advanced Modeling Frameworks
Group A Poster 337	CEM	CFM 7.0 updates: peer review, web enhancements, and CRESCENT interoperability Andreas Plesch, Scott Marshall, . CFM Evaluation Working Group, Mei-Hui Su, Ellen Yu, John Shaw We conducted a full peer evaluation of the central and northern California portions of CFM 7.0, which was released in the fall of 2024. For this evaluation, we subdivided these previously unreviewed portions of the model into five areas following... more Themes: Improving Observations and Closing Data Gaps \| Advanced Modeling Frameworks \| Research Computing & Cyberinfrastructure	25137
Group A Poster 095	Geology	Fault lines and field notes: Machine learning-driven parsing of post-earthquake field data into structured observations Harini Pootheri, Neeraja Vasa, Edric Pauk, Tran Huynh, Luke Blair, Kate Thomas, Timothy Dawson After an earthquake, field teams are deployed to collect perishable data at locations with visible geological effects. Earthquake field data often contains varying schemas, mixed formats, and unstructured notes, making it difficult to convert into a... more Themes: Improving Observations and Closing Data Gaps \| Research Computing & Cyberinfrastructure \| Education and Workforce Development
Group A Poster 225	GM	Ground Motion Directionality in Simulation-Based Probabilistic Seismic Hazard Analysis Alan Poulos, Evan Hirakawa, Grace Parker, Annemarie Baltay We characterize earthquake ground motion polarization in simulation-based PSHA using the CyberShake Southern California Study 22.12. The intensity of earthquake ground motion can vary significantly depending on horizontal orientation, a phenomenon... more
Group A Poster 049	Seismology	Seismic Noise Analysis: Assessing Station Data Quality in the Southern California Seismic Network Dev Raja, Igor Stubailo, Gabrielle Tepp Regional seismic networks monitor earthquakes and seismicity for hazard assessments, earthquake response, and research. Analyzing noise data across time, site conditions, and specific seismic events can lead to more robust and responsive earthquake... more Themes: Improving Observations and Closing Data Gaps
Group B Poster 236	GM	Increasing the spatial resolution in physics-based site term estimates: results from southern San Andreas ruptures John Rekoske, Alice-Agnes Gabriel, Dave May, Scott Callaghan Recent advances in Probabilistic Seismic Hazard Analysis (PSHA) leverage physics-based simulations to estimate seismic hazard, such as the CyberShake project. However, computational costs quickly escalate when performing PSHA analysis for numerous... more Themes: Advanced Modeling Frameworks \| Research Computing & Cyberinfrastructure	25259, 24103
Group A Poster 047	Seismology	Insights into fault behavior in southern Kansas from stress evolution modeling of multiple induced earthquake sequences Rosamiel Ries, Gregory Beroza, William Ellsworth Southern Kansas has experienced an increase in seismicity largely associated with wastewater disposal in the last decade, with earthquake rates being the highest in 2013-2017, including a Mw 4.8 earthquake near Milan, Kansas on 12 November 2014.... more
Group B Poster 078	Geodesy	Investigating earthquake scaling relationships from InSAR-derived source parameters Karlee Rivera, Gareth Funning Scaling relationships of earthquake source parameters (fault length, fault width, slip, and seismic moment) provide insight into the underlying physics of earthquakes and their implications for seismic hazard. Earthquake scaling provides invaluable... more Themes: Improving Observations and Closing Data Gaps	25325
Talk Sun1730	FARM	Off-Fault Deformation and Seismic Hazard: Insights into Variations Across Southern California's Strike-Slip Faults and Their Implications for Maximum Magnitude (Mmax) Thomas Rockwell, William Griffith, Thomas Mitchell Fault damage zones provide valuable insights into dynamic rupture processes and extensive work over the past two decades has advanced our understanding of rupture dynamics, off-fault deformation (OFD), and fault rock pulverization. High-strain-rate... more Themes: Improving Observations and Closing Data Gaps \| Improving Predictive Analyses of Seismicity \| Applied Science Implementation
Group B Poster 314	CEM	Full Waveform Inversion Tomography of Central and Northern California for Improved Ground Motion Simulations Arthur Rodgers We report a new three-dimensional seismic wavespeed model of Central and Northern California derived from full waveform inversion of moderate earthquakes. The domain covers a large region (540 km west-east by 420 km south- north) spanning the... more Themes: Advanced Modeling Frameworks \| Research Computing & Cyberinfrastructure
Group B Poster 198	FARM	Where do faults go fast? Geometry of sub- and supershear ruptures Alba Rodriguez Padilla Supershear rupture speeds are often linked to long, straight fault segments, but transitions from sub-Rayleigh to supershear speeds can also occur at geometrical complexities such as steps. Most evidence comes from single events, without comparison... more
Group B Poster 034	Seismology	Conjugate faulting in the Gorda plate and its influence on the southern Cascadia subduction thrust Bo Rong, Weiqiang Zhu, Roland Bürgmann Fault zones in the oceanic lithosphere can play important roles in the subduction process and may act as fluid pathways, thereby influencing slip behavior on the megathrust. Despite their importance, intraplate fault zones are often insufficiently... more Themes: Improving Observations and Closing Data Gaps

The Statewide California Earthquake Center is committed to providing a safe, productive, and welcoming environment for all participants. We take pride in fostering a diverse and inclusive SCEC community, and therefore expect all participants to abide by the SCEC Activities Code of Conduct.

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