Function and Responsibilities:

Working Group leader Tectonic Geodesy

Research Interests:

I am interested in active fault systems at plate boundaries. Based on Global Navigation Satellite System (GNSS) and Satellite-Radar Interferometric (InSAR) time-series I try to understand fault kinematics and shed light on the driving forces of crustal deformation. I am also interested in anthropogenic or climate-driven surface deformation processes, such as subsidence due to groundwater depletion, landslides, rain-induced seismicity, and signals rooting in relaxation of the upper mantle, for example, isostasy or slab break-off.

Career:

Education:

Projects:

• Coupling of back- and forearc shortening in the Central Andes, using satellite geodesy (PhD Blanca Symmes)
• Water-related geohazards in Central Asia, observed by InSAR (PhD Najib Kakar)
• DFG priority programme "Mountain building processes in 4D (MB-4D)"
• ALPSHAPE2: Recent kinematics of the Southern and Eastern Alps
• CaTeNA: Climatic and Tectonic Natural Hazards in Central Asia (BMBF)
• GeduCA: Central Asian GNSS summer school
• Natural laboratory Central Asia: The tectonic fingerprint of a continental collision
• Coordination and participation at the GFZ interest group "InSAR Round Table"
• GNSS network, Pamir, Central Asia
• N-ICE GNSS network, Tjörnes Fracture Zone, Iceland

• Geophysical Field Course - hammer stroke seismics (BSc, teaching assistant)
• Crustal deformation measured with radar satellite interferometry (InSAR), Theory and Practicals using a case study, Potsdam University (MSc)
• Active Tectonics (MSc, Co-Teaching)
• Supervision of 3 PhD, 5 MSc, 1 BSc theses and 3 internships

Research Boards and Committees:

Member of the Internal Scientific Council at the GFZ

Awards:

• ALPSHAPE2, DFG research grant for 3 years (DFG)
• GeduCA: Central Asian GNSS summer school, 80 kEUR (Volkswagen Foundation)

2024

González R., Le Breton, E., Metzger, S., Mora, A., Bayona, G., Mora-Bohórquez, J. A., Higuera, I. C., Faccenna, C., Oncken, O., Strain partitioning and orogeny during multiple plate interaction – Impact of subduction and collision in the Northern Andes, in prep. for Tectonics

Peña, C., Heidbach, O., Metzger, S., Schurr, B., Moreno, M., Oncken, O., Faccenna, C., Pore-pressure diffusion controls upper-plate aftershocks of the 2014 Iquique earthquake, in prep. for Nature Communication, https://doi.org/10.21203/rs.3.rs-2826851/v1 (preprint)

Barreto, A., Viltres, R., Matrau, R., Metzger, S., Ofeigsson, B. G., Liu, S., Halldorsson, B., Jouanne, F., Mai, P.M., Jonsson, S., Interseismic Deformation in the Tjörnes Fracture Zone from Two Decades of GNSS Data, subm. to Geophys. J. Int.

Kakar, N., Metzger, S., Schöne, T., Motagh, M., Waizy, H., Nasrat, N. A., Lazecky, M., Amelung, F., Bookhagen, B., Interferometric radar satellite and in-situ well time-series reveal groundwater extraction rate changes in urban and rural Afghanistan, subm. to Water Resources Research

Kosari, E., Metzger, S., Navarro-Sanchez, V., Oncken, O., Schurr, B., Rosenau, M., Interseismic deformation fingerprints on the hyperarid coastal landscape in North Chilean subduction, EarthArXiv, https://doi.org/10.31223/X50T46 (preprint)

Wang, D., Zhao, B., Li, J., Metzger, S., Gu, Ch., Wang, W., Zheng, G., Yu, J., Qiao, X., Recent block kinematics and fault slip rates in the Pamir, Central Asia, from an integrated GNSS velocity field, Tectonics, 43, e2024TC008475. https://doi.org/10.1029/2024TC008475 (open access)

Veliz-Borel, V., Mouslopoulou, V., Glodny, J., Begg, J., Metzger, S., Sakellariou, D., Oncken, O. (2024), Exploring uplift mechanisms across the forearc of a subduction system: Karpathos Island as a natural transect across the eastern Hellenic margin, Tectonics, 43, e2023TC008156, https://doi.org/10.1029/2023TC008156

2023

Hormazábal, J., Moreno, M., Ortega-Culaciati, F., Báez, J. C., Peña, C., Sippl, C., González-Vidal, D., Ruiz, J., Metzger, S., Yoshioka, S. (2023), Fast relocking and afterslip-seismicity evolution following the 2015 M_w 8.3 Illapel earthquake in Chile. Scientific Reports, 13, 19511, doi:10.1038/s41598-023-45369-9

Metzger S. (2023), Neotectonic deformation over space and time as observed by space-based geodesy, Habilitation Thesis, University of Potsdam, Germany, doi:10.25932/publishup-59922