Siamo lieti di annunciare l'organizzazione del secondo "INGV-BSL Workshop on Solid Earth Geophysics", che si svolgerà presso il Berkeley Seismological Laboratory (BSL) della University of California, Berkeley, dal 13 al 15 maggio 2025. Questo evento si inserisce nel quadro delle attività previste dal Memorandum of Understanding (MoU) che unisce il nostro Ente al BSL.
Il primo workshop ha stimolato significative interazioni tra i nostri ricercatori, dando vita a collaborazioni tra gruppi di ricerca di INGV e BSL. Per dare continuità a questi scambi fruttuosi, abbiamo strutturato il workshop attorno a due temi principali:
1) Le faglie nella fase tardiva del loro ciclo sismico, come la Hayward Fault o il segmento transizionale di Parkfield della San Andreas Fault.
2) Gli osservatori/laboratori naturali, come TABOO o altre infrastrutture progettate per lo studio di porzioni crostali di particolare interesse.
Second INGV & BSL Cooperative Workshop on Solid Earth Geophysics
Programma
Dates: May 13, 14, 15 2025
Location: Berkeley Seismology Laboratory
The themes of this year’s workshop are late-stage faults and observatories. In California the Hayward fault and Parkfield segment of the San Andreas faults are of interest. In Italy, one example is the Central Apennines: a region characterized by high seismic hazard where the TABOO observatory is located.
Invitation to participate: This three-day workshop is free and open to all researchers interested in these topics. In addition to participants from INGV and the BSL, we welcome colleagues at sister institutions to participate and submit abstracts.
Abstract submission: To present at the workshop, please email the conveners of the session that is most relevant to your topic with a title and abstract. Please indicate any preference for an oral or poster presentation. Abstracts are due Friday April 25.
Day 1
Session 1: Active fault systems of interest
Convenors: Stefano Pucci (
This session focuses on interdisciplinary case studies of earthquake research in active fault systems. This includes geophysical and geological studies documenting the interplay of large and small earthquakes, seismic and aseismic fault slip, and inter-, co-, and post-seismic phases of the earthquake cycle. Geophysical and geological observations across fault zones at multiple scales allow us to explore fundamental aspects of active faulting. We welcome results from field, lab, and modeling studies to address the multi-scale deformation mechanisms involved in active faulting.
Session 2: Late-stage faults – monitoring, observations, and modeling
Convenors: Licia Faenza (
This session focuses on imminent earthquake processes. We consider the tectonics and fault mechanics of late-stage fault systems, which include the Hayward Fault, the Parkfield section of the San Andreas Fault and also contributions that explore similar processes in other regions worldwide. What are the observations and models that provide information about the evolution of the faults as they approach failure? How can we constrain hazard, and monitor its evolutions? What real-time monitoring is needed to reduce the risk?
Key topics include:
- Observations and modelling of fault evolution towards failure (e.g., feature extraction for seismic catalogues, multi-parametric time-series analysis)
- Machine Learning approaches for continuous monitoring during seismic sequences
- Coda Wave Interferometry in near real-time
- Constrain the hazard through physical and statistical models
- Earthquake-induced anomalies of crustal properties
A comparative analysis of different monitoring and analysis methodologies in various tectonic settings could provide insights into the actual transferability of these approaches. We welcome contributions ranging from long-term modelling to short-term pre-, co- and post-event assessment, which will provide a comprehensive perspective on fault behaviour, real-time hazard assessment, and monitoring strategies.
Discussion: Fault Observatories: Current capabilities and future needs
Day 2
Session 3: General source physics and modeling with attention to Apennines and California:
Convenors: Luca Malagnini (
a. Stress drop, radiated energy, and source scaling
b. Kinematics and dynamics - observations, methods, implications
c. Fluid driven faulting – observations, methods, implications
This session explores earthquake source processes through observational, theoretical, experimental, and numerical studies. We invite contributions on stress drop, radiated energy, and source scaling, as well as studies on the kinematics and dynamics of fault rupture; including rupture initiation, propagation, arrest, and post-seismic processes. Emphasis is placed on events in Italy (especially the Apennines) and Northern California, though studies from other regions are welcome. Additionally, contributions investigating fluid-driven faulting in both natural and anthropogenic contexts, as well as the role of pore-fluid pressure in triggering seismicity, and the real-time detection of fluid diffusion and its influence on fault strength are of interest. Case studies from tectonically active regions and geothermal systems are particularly relevant, as are methods for identifying fluid-induced seismicity.
Session 4: BSL-INGV collaborations
Convenors: Raffaele Azzaro (
This session focuses on the initiatives of common interest between our institutions. Focus will be given on approaches, methodologies and instruments suitable for resolving issues and shadow areas in the topics and key-regions faced in the previous sessions. We welcome contributions that showcase ongoing collaborative projects, demonstrate complementary research strengths, and propose new frameworks for data sharing and joint analysis. Presentations addressing cross-institutional methodologies for fault monitoring and comparative studies of the Hayward Fault and Apennine fault systems are particularly encouraged. We encourage discussions on harmonizing observational techniques, standardizing data formats, machine learning approaches, and developing integrated models that leverage the expertise of both institutions. This session aims to strengthen existing partnerships while identifying new opportunities for BSL-INGV cooperation in the study of late-stage faults and observatory development.
Poster session and reception (in McCone Hall)
Day 3: Field Trip (TBA)
Invitiamo i colleghi coinvolti nei gruppi di lavoro misti INGV-BSL a manifestare il loro interesse a partecipare al workshop fornendo un aggiornamento sulle attività di ricerca avviate con i colleghi del BSL e una breve descrizione di tali attività (obiettivi, membri del gruppo di ricerca, referenti del BSL). Abbiamo la possibilità di sostenere le spese per l'organizzazione del viaggio e la partecipazione al workshop per un piccolo numero di persone, pertanto è fondamentale conoscere l’interesse a partecipare il prima possibile. Non è prevista alcuna iscrizione al workshop, per cui le spese da programmare saranno soltanto quelle di viaggio, vitto, alloggio, e assicurazione sanitaria.
Altri colleghi interessati a partecipare utilizzando fondi propri sono invitati a dichiarare il loro interesse. Data la limitata capienza della sala covegni del BSL, è essenziale che tutti gli interessati inviino una manifestazione di interesse il prima possibile.