Objectives
To develop a consensus recommendation from AndesNet to SZ4D regarding the geographic region of SZ4D instrumentation in Chile, and to develop a plan for priority AndesNet activities (e.g., analysis of instrumental data, geological work, modeling) under the SZ4D Implementation Plan.
SZ4D is a rapidly advancing initiative focused on creating a long-term, interdisciplinary, community-driven research program to explore the limits and possibilities of predicting geohazards.
AndesNet, a coordination network for Chilean subduction zone scientists, serves as a platform for investigators working to understand hazard-related natural processes associated with the dynamics of the Chilean subduction zone. As the natural counterpart to SZ4D, AndesNet is instrumental in fostering scientific collaboration between the U.S., Chilean, and Argentinean communities and in advancing geophysical instrumentation in the local subduction zone.
The Chilean subduction zone has been identified as a potential site for a decade-long research effort involving comprehensive offshore and onshore instrumental measurements to study geohazardous phenomena across space and time.
From June 12-14, 2023, an NSF-supported workshop was held at Hotel Termas El Corazón, near Santiago, Chile. This three-day event brought together the Chilean and Argentine geoscience community with the main goal of identifying optimal sites and sensing technologies for deployment across Chile, both inland and offshore. The workshop was preceded by an Early-Career Investigator symposium on June 12.
The workshop was attended by 83 people, including 63 scientists from the Chilean subduction-zone science community, 15 scientists representing SZ4D, and 5 representatives of the U.S. and Chilean governments. A significant portion of the attendees (20%) were graduate students and early career scientists. More than half of the total of participants had not attended the first joint workshop in 2022.
The agenda featured presentations and guided discussions, with the meeting conducted in a hybrid English/Spanish format to facilitate communication.
The event successfully brought together a diverse group of scientists to collaborate on advancing our understanding of geohazards in the Chilean subduction zone.
Transportation, lodging, and meals for all invited participants were covered by the SZ4D Initiative.
Organizers
Cristian Farías (Co-Chair), Universidad Católica de Temuco, Chile
Diana Roman (Co-Chair), Carnegie Institution for Science, USA
Laura Bono, SERNAGEOMIN, Chile
Anaïs Férot, SZ4D Managing Director, UC Santa Cruz, USA
Ignacio Sepulveda, San Diego State University, USA
Alejandra Serey, Universidad de O’Higgins, Chile
Andrés Tassara, Universidad de Concepción, Chile
Doug Wiens, Washington University in St. Louis, USA
Agenda
DAY 1 | Early Career Symposium
Introductory Remarks | Ignacio Sepulveda & Valeria Cortes-Rivas
Funding opportunities
Experience of Postdoctoral researcher with ANID-Postdoc | Alejandra Serey
Experience of faculty with ANID-Iniciación | Cristian Farías
Experience of faculty with ANID-Regular | Matías Carvajal
DAY 1 | Meeting
SESSION 1: Plenary - Welcome & Introduction
Welcome and overview of meeting objectives, code of conduct, and feedback from Termas 1.0 | Diana Roman
Introductory remarks from Chilean and U.S. Agencies
Gonzalo Arenas, Head of International Affairs at Ministry of Science, Technology, Knowledge and Innovation
Shelby Walker, National Science Foundation
Alejandra Avila, Subdirectora Nacional de Geología, SERNAGEOMIN
Alvaro Hormazabal, Director Nacional, SENAPRED
Lt. Matías Sifón, Head of Oceanography Department. Hydrographic and Oceanographic Service of the Chilean Navy (SHOA)
SZ4D overview | Emily Brodsky
SZ4D activities and Collective Impact | Kristin Morell
SESSION 2: Plenary - Survey Results & Discussion
AndesNet survey results | Andrés Tassara
SZ4D All-Hands meeting results | Donna Shillington
DAY 2 | Meeting
SESSION 3: Breakout 1 - MultiArray Location
Reminder of charge for the meeting and goals | Doug Wiens
Invited talks on three possible MultiArray zones arising from AndesNet survey
Presentation Segments 14-16 y 20 | Ayleen Gaete
Presentation Segments 8-10 | Sergio Ruiz y Juan González
Presentation Segments 4-6 | Felipe Aguilera + Ckelar
Breakout instructions and group assignments | Doug Wiens
SESSION 4: Breakout 2 - MultiArray location
Breakout instructions and group assignments | Álvaro Amigo
DAY 3 | Meeting
SESSION 5: Plenary - Results of Final Survey & Agreement Consensus Recommendation for Geography
Presentation of final survey results and proposed consensus recommendation on MultiArray location (3 highest priority zones) and segments of interest to individual arrays | Andrés Tassara and Cristian Farías
SESSION 6: Plenary - Coordination and Collaboration
How can Chile- and Argentina-based scientists get support from the U.S.? | Shelby Walker and Mark Behn
Breakout instructions and group assignments | Alejandra Serey
Reimbursement and survey instructions | Anaïs Férot
SESSION 7: Plenary - Final Discussion
AndesNet needs | Andrés Tassara
Meeting conclusion | Emily Brodsky
Lightning Talks
Thunder Talks
Key Outcomes
The key outcome of the workshop was a formal consensus recommendation from AndesNet to SZ4D on the optimal geographic location for installing the initiative's instrumental arrays and a list of potential scientific activities beyond the arrays. After a thorough discussion, Chilean and Argentine participants voted in favor of central-southern Chile as the ideal location, with additional consideration for other regions. The workshop also generated a comprehensive list of potential activities, which is currently being refined. The meeting concluded with recommendations for AndesNet to strengthen collaboration and expand its reach. Following the workshop, representatives from AndesNet, SZ4D, NSF, and the US embassy met with the Chilean Minister of Science, Technology, Knowledge, and Innovation to discuss the initiative's scope and potential collaboration, which was met with positive interest and the possibility of securing funding for AndesNet.
