The  Seismic imaging and Interferometry  group at SED has an open position for a PhD student in passive seismic interferometry.  

At the interface of seismology, hydrogeology, and energy sciences, this project aims to advance the knowledge of how Earth's shallow fluid systems change over time and space. Being able to closely observe and monitor these processes is pivotal in enhancing our understanding and management of critical resources such as water and energy, as well as geohazards. Switzerland is already heavily affected by climate change, with long hot and dry periods in summer, inexorably melting glaciers and snow-poor winters. In particular, in the Swiss Alpine region, these mass-balance changes have significant impacts on slope stability, induced seismicity and groundwater recharge. 

Such mass-balance changes modify stresses in the subsurface, affecting speed and attenuation of seismic waves crossing the regions. Switzerland has one of the densest seismic monitoring networks in the world, allowing us to work toward a near real-time monitoring of the stress state of the subsurface.

The PhD student will work in the field of passive seismic interferometry and tackle the following aspects: 

1. Methodological advances : Quantify the impact of various parameters on seismic velocity and potentially on seismic attenuation.
2. Process understanding : Assess long-term velocity changes at selected locations with the introduction of unsupervised machine learning and study the interaction of mass balance changes (crustal stress changes) and geohazards such as rain-induced seismicity and landslides.
3. Application : Scaling up to assess the spatial distribution of long-term hydrological changes across Switzerland. 

As a final project goal stands the development of a real-time monitoring framework for Switzerland using cutting-edge seismic interferometry methods to probe the 4-dimensional (space-time) changes in subsurface fluids. 

Join Our Dynamic Team as a Young Scientist!

What  we are  looking for  : We are seeking a passionate young scientist with a desire to contribute to cutting-edge research and collaborate with a diverse, global team . 

Key Qualifications

• MSc  in Seismology, Geophysics, Computer Science, or a related field.
• A solid grasp of general physics and a keen interest in the physics of wave propagation.
• Strong  programming skills  in Python, Matlab, or similar languages. You will also need a solid grasp of physics to power your research.
• Excellent  communication skills  (both written and verbal) in English, as you will be publishing research and interacting with international researchers at conferences and more.

What will make you stand out

• A  proactive , creative mindset when it comes to solving complex scientific and engineering challenges.
• A willingness to work on large data processing tasks on cluster computers.

Why  we are a collaborative and  forward - thinking team  , dedicated to pushing the boundaries of research in seismology and  geophysics  . You will be involved in exciting projects, working alongside experts, and growing your skills in an inspiring environment.

We  o ffer

• Work in a dynamic, collaborative research environment at the forefront of seismic interferometry.
• The opportunity to contribute to addressing the effects of climate challenges in an Alpine environment, with the chance to collaborate with international partners.
• Access to cutting-edge tools, algorithms, and large, high-quality seismic datasets.
• Occasional fieldwork to acquire data from temporary networks, providing you with hands-on experience in the field.
• A competitive salary and benefits, including support for further academic development and training.
• Please check out the  AVETH survival guide  to learn more about pursuing a doctorate at ETH Zurich.

We value diversity

In line with  our values , ETH Zurich encourages an inclusive culture. We promote equality of opportunity, value diversity, and nurture a working and learning environment in which the rights and dignity of all our staff and students are respected. Visit our website to find out how we ensure a fair and open environment that allows everyone to grow and flourish.

The application window is open and will remain open until the position is filled. The position is available with a flexible start date from June 2025 until early 2026 . We look forward to receiving your online application with the following documents prepared in English (please make sure your last name is on all documents, and in all file names):

• A Motivation and Research Interest Statement (max. 2 pages)
• A full CV, including the names of 2 referees who may be consulted at an advanced stage in the selection process
• An academic transcript/ list of courses completed, including grades (please upload a single PDF)

Please note that we exclusively accept applications submitted through our online application portal. Applications via email or postal services will not be considered. Questions regarding the position should be directed to Dr. Anne Obermann (no applications):  anne.obermann@sed.ethz.ch.