Senior research seismologist at the KNMI. I focus on induced earthquakes in the province of Groningen. My current topics are seismic hazard analysis and hypocenter location determination. In the case of seismic hazard analysis, spectral acceleration spectra are computed according to the newest hazard model for Groningen. The hypocenter location method applied on induced earthquakes is used to estimate epicenter and depth. I have a broad background in geophysics covering subjects in seismology, tomography, time-lapse seismic monitoring of water and CO2 injection and processing of seismic data from a range of different acquisition setups.
My background is seismology and seismic exploration. Primarily, I concentrate on the induced seismicity due to the production of gas in the Groningen field. I combine my diverse background to assess and monitor the Groningen gas field for induced Earthquakes, as well as, look for changes in the subsurface model over time. In another project, the effect of injected gas in a depleted hydro-carbon reservoir is investigated. Will the increase in volume of gas in the reservoir increase the induced seismicity? How can we quantify time-lapse changes in the subsurface?