Wasja Bloch

Postdoctoral Fellow


EOS South 263

I work on convergent plate boundary systems, where I use the elastic waves emitted by earthquakes to decipher subsurface structures and processes. I am especially interested in the deep water cycle that withdraws water from the oceans at subduction zones and releases it back to the atmosphere through volcanic eruptions.

2021 - present Postdoc University of British Columbia
  Constraining Oceanic Mantle Hydration with Receiver Functions
2018 - 2021 Postdoc German Geoscience Centre, Potsdam
  Climatic and Tectonic Natural Hazards in Central Asia
2012 - 2017 PhD Freie Universität Berlin
  Anatomy of the Chilean subduction zone
2010 - 2012 M.Sc. Freie Universität Berlin
  Seismological Transients in the Northern Chile Coupling Zone
2006 - 2009 B.Sc. Georg-August-Universität Göttingen
  Structural Geology of the Leinetal Graben system



Bloch, W., Metzger, S., Schurr, B., Yuan, X., Ratschbacher, L., Reuter, S., Xu, Q., Zhao, J., Murodkulov, S., and Oimuhammadzoda, I. (2022) The 2015–2017 Pamir Earthquake Sequence: Fore-, Main-, and Aftershocks, Seismotectonics, Fault Interaction, and Fluid Processes. Earth and Space Science Open Archive, https://doi.org/10.1002/essoar.10508392.3

As first author

Bloch, W., Schurr, B., Yuan, X., Ratschbacher, L., Reuter, S., Kufner, S.-K., Xu, Q., Zhao, J. (2021). Structure and stress field of the lithosphere between Pamir and Tarim. Geophysical Research Letters, 48, e2021GL095413. https://doi.org/10.1029/2021GL095413
Bloch, W., John, T., Kummerow, J., Salazar, P., Krüger, O. S., & Shapiro, S. A. (2018). Watching dehydration: Seismic indication for transient fluid pathways in the oceanic mantle of the subducting Nazca slab. Geochemistry, Geophysics, Geosystems, 19(9), 3189-3207. https://doi.org/10.1029/2018GC007703
Bloch, W., Schurr, B., Kummerow, J., Salazar, P., & Shapiro, S. A. (2018). From slab coupling to slab pull: Stress segmentation in the subducting Nazca plate. Geophysical Research Letters, 45(11), 5407-5416. https://doi.org/10.1029/2018GL078793
Bloch, W., Kummerow, J., Salazar, P., Wigger, P., & Shapiro, S. A. (2014). High-resolution image of the North Chilean subduction zone: seismicity, reflectivity and fluids. Geophysical Journal International, 197(3), 1744-1749. https://doi.org/10.1093/gji/ggu084

As co-author

Xu, Q., Zhao, J., Yuan, X., Liu, H., Ju, C., Schurr, B., & Bloch, W. (2021). Deep crustal contact between the Pamir and Tarim Basin deduced from receiver functions. Geophysical Research Letters, 48(9), e2021GL093271. https://doi.org/10.1029/2021GL093271
Herrera, C., Cassidy, J. F., Dosso, S. E., Dettmer, J., Bloch, W., Sippl, C., Salazar, P. (2021). The Crustal Stress Field Inferred From Focal Mechanisms in Northern Chile. Geophysical Research Letters, 48(8), e2021GL092889. https://doi.org/10.1029/2021GL092889
Kufner, S. K., Kakar, N., Bezada, M., Bloch, W., Metzger, S., Yuan, X., Mechie, J., Ratschbacher, L., Murodkulov, S., Deng, Z., Schurr, B. (2021). The Hindu Kush slab break-off as revealed by deep structure and crustal deformation. Nature communications, 12(1), 1-11. https://doi.org/10.1038/s41467-021-21760-w
F. Pasten-Araya, P. Salazar, S. Ruiz, E. Rivera, B. Potin, A. Maksymowicz, E. Torres, J. Villarroel, E. Cruz, J. Valenzuela, D. Jaldín, G. González, W. Bloch, P. Wigger, S. A. Shapiro (2018). Fluids along the plate interface influencing the frictional regime of the Chilean subduction zone, northern Chile. Geophysical Research Letters, 45(19), 10-378. https://doi.org/10.1029/2018GL079283