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Houston, TX

November 14-16, 2022

SZ4D Community Experiment

The first SZ4D Community Meeting took place in Houston, TX and online on November 14-16, 2022. The participant list and the meeting agenda as well as the collection of keynote lectures and lightning talks are available below. Recordings of the presentations are available on the SZ4D Youtube Channel

Organizing Committee


Mark Behn (Boston College, co-chair)

Donna Shillington (Northern Arizona University, co-chair)

Kasey Aderhold (IRIS)

Jade Bowers (Boise State University, EC workshop co-convener)

Behrooz Ferdowsi (University of Houston, EC workshop co-convener)

Anaïs Férot (UC Santa Cruz, SZ4D)

Melodie French (Rice University, EC workshop co-convener)

Krystin Poitra (IRIS)

Diana Roman (Carnegie)

David Sandwell (UC San Diego)

Justin Sweet (IRIS) 



DAY 0 - Early Career Event

Introductory Remarks

Overview of SZ4D | Harold Tobin

Overview of SZ4Grads | Behnaz Hosseini and Nate Klema

Navigating Funding | Jenn Wade, NSF

Crash Course in SZ4D Disciplinary Science


  • Plenary session 1: Introduction

Welcome and introduction to goals of meeting | Mark Behn, Donna Shillington, Diana Roman

Overview of history and status of SZ4D | Emily Brodsky

AndesNet | Sergio Barrientos

Comments from funding agencies

  • NSF | Jenn Wade and Gail Christeson

  • USGS | Gavin Hayes

  • NASA | Ben Phillips no slides

  • Plenary session 2: SZ4D science 

Building Equity and Capacity with Geoscience | Andy Frassetto

Faulting and Earthquake Cycles | Demian Saffer

Landscapes and Seascapes | Kristin Morell

Magmatic Drivers of Eruptions | Peter Barry


  • Plenary session 3: Introduction to sites and allied activities

Chile | Álvaro Amigo

Cascadia | Joan Gomberg

Alaska/Aleutians | Jeff Freymueller

GeoArray | Kristin Morell

Experimental efforts | Melodie French

Numerical modeling | Alice Gabriel


  • Plenary session 4: Report backs from Breakout 1

Report backs from Breakout 1


  • Plenary session 5: Crosscutting science and emerging methodologies/technology 1

Mechanical and hydrological processes governing slow landslide slip in an exhumed subduction mélange | Noah Finnegan

Capturing high-resolution subduction zone seismicity: Recent advances, current efforts, and continuing challenges | Grace Barcheck

Crystals and glass as records of volcanic processes | Michelle Muth

Integrating efforts to build equity and capacity into pilot SZ4D science | Mike Brudzinski

  • Plenary session 6: Crosscutting science and emerging methodologies/technology 2

Investigating the transient friction of near-surface and subsurface fault zones using granular physics simulations and rheology experiments | Behrooz Ferdowsi 

What has happened to the Chilean volcanoes in the 12 years since the 2010 Mw 8.8 Maule earthquake? A brief review of observations and models, with questions for the future | Cristian Farías

Integrating thermodynamic melting models and geophysical images to estimate magma reservoir conditions | Darcy Cordell

Shallow Megathrust Kinematics from Seafloor Geodesy | David Schmidt

Lightning talks


AVERT - Anticipating Volcanic Eruptions in Real-Time | Terry Plank

A new volcano monitoring method | Joe Biasi

Persistent hazards of lava dome eruptions | Brett Carr

P-wave attenuation structure of the Tonga subduction zone and implications for mantle

wedge processes | Yurong Zhang

Distinguishing origin, provenance, and relative chronology of mass surficial deposits in the northern Chilean Andes | Dylan Ward

Monitoring of the 2021 Mw 8.2, Chignik, Alaska Earthquake by Ocean Networks Canada’s NEPTUNE Observatory | Tianhaozhe Sun

SZ4GRADS: Subduction Zones for Grad-Students and Graduates | SZ4Grads

3D First-Arrival Traveltime Tomography of the Alaska Subduction Zone Using Controlled-source seismic data acquired during the Alaska Amphibious Community Seismic Experiment (AACSE) | Tanner Acquisto

What is the cost of a DAS MegaArray? | Zach Spica

Investigation of structural controls on megathrust slip behavior in and around the Guerrero Seismic Gap off the Pacific Coast of Mexico using New Langseth Active Source Seismic Data | Anne Bécel

The effects of presubduction architecture on coherent underplating in the Betics subduction zone investigated by geothermochronology and microstructural analyses | Eirini Poulaki

Rheology of the seismogenic zone from exhumed subduction interfaces | Don Fisher

Seismic reflection imaging of the Andreanof Segment of the Aleutian Subduction Zone | Valeria Cortes-Rivas

Double reservoirs imaged below the Great Sitkin volcano explain the migration of eruption seismicity | Xiaotao Yang

Expanding long-term observations of the Cascadia subduction zone with the ocean observatories Initiative Regional Cabled Array | William Wilcock

Influence of the Nootka fault zone (NFZ) segmenting subduction processes along the northern Cascadia margin | Brandon Shuck

Ranking of specific risk of Chilean volcanoes | María Contreras y Loreto Córdova

Lateral variations of attenuation in the crust of Alaska using Lg Q tomography | Anuradha Mahanama

Plate tectonic control on subduction arc magmatism from ancient and recent western Pacific arc geochemistry | Jeremy Tsung-Jui Wu

Examining plate-asthenosphere decoupling and anomalous volcanism along the Pacific Ring of Fire | Margarete Jadamec

U-CORS: An underwater continuously operating reference station for deep seafloor geodesy | Frederik Simons

Talc hosts episodic slow slip | Will Hoover

Spatiotemporal variability of devolatilization from subduction initiation to maturity |

Gabe S. Epstein

Aseismic ridge subduction focused late Cenozoic exhumation above the Peruvian flat slab | Sarah George

Breakout Reports & Workshop Recommendations


Report Breakout 1 (link coming soon)

Workshop Documents


2022 SZ4D Meeting Package
Download PDF • 950KB

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