Bio


Lucia Gualtieri is an Assistant Professor of Geophysics at Stanford University. Before joining Stanford, she was a Postdoctoral Research Associate in the Department of Geosciences at Princeton University and a Postdoctoral Research Fellow at Lamont-Doherty Earth Observatory of Columbia University. Lucia earned her Ph.D. in Geophysics in 2014, as a dual degree from the Institut de Physique du Globe de Paris (France) and the University of Bologna (Italy). She obtained her M.Sc. in Geophysics in 2010 and her B.Sc. in Physics in 2008, both at the University of Bologna. Lucia is interested in a variety of research topics, and in tackling them under a theoretical, computational and observational point of view. Lucia’s main research interests are in solving problems related to emerging fields in seismology, like ambient seismic noise and seismic signals due to mass-wasting events. She is also interested in using seismic waves to scan the interior of our planet and in gaining insights on how the Earth's structure affects seismic records.

Academic Appointments


Honors & Awards


  • Gabilan Faculty Fellow, Stanford University (2021-2023)
  • Blavatnik Postdoctoral Award for Young Scientists, Blavatnik Family Foundation and the New York Academy of Sciences (2018)
  • Keiiti Aki Young Scientist Award, American Geophysical Union (2017)
  • Laura Bassi Young Scientist Award, Italian Physical Society (2016)
  • Claudio Bonivento PhD Thesis Award, University of Bologna (2014)
  • Postdoctoral Fellowship in the Earth, Environmental, and Ocean Sciences, Lamont-Doherty Earth Observatory of Columbia University (2014)
  • Outstanding student presentation award, Third International QUEST Workshop organized by the ITN QUEST funded by the European Commission. (2012)
  • Marie Curie PhD Fellowship, QUEST International Training Network funded by the European Commission. (2011)

2020-21 Courses


All Publications


  • The origin of secondary microseism Love waves. Proceedings of the National Academy of Sciences of the United States of America Gualtieri, L., Bachmann, E., Simons, F. J., Tromp, J. 2020

    Abstract

    The interaction of ocean surface waves produces pressure fluctuations at the seafloor capable of generating seismic waves in the solid Earth. The accepted mechanism satisfactorily explains secondary microseisms of the Rayleigh type, but it does not justify the presence of transversely polarized Love waves, nevertheless widely observed. An explanation for two-thirds of the worldwide ambient wave field has been wanting for over a century. Using numerical simulations of global-scale seismic wave propagation at unprecedented high frequency, here we explain the origin of secondary microseism Love waves. A small fraction of those is generated by boundary force-splitting at bathymetric inclines, but the majority is generated by the interaction of the seismic wave field with three-dimensional heterogeneity within the Earth. We present evidence for an ergodic model that explains observed seismic wave partitioning, a requirement for full-wave field ambient-noise tomography to account for realistic source distributions.

    View details for DOI 10.1073/pnas.2013806117

    View details for PubMedID 33168742

  • City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic. Geophysical research letters Lindsey, N. J., Yuan, S., Lellouch, A., Gualtieri, L., Lecocq, T., Biondi, B. 2020; 47 (16): e2020GL089931

    Abstract

    Throughout the recent COVID-19 pandemic, real-time measurements about shifting use of roads, hospitals, grocery stores, and other public infrastructure became vital for government decision makers. Mobile phone locations are increasingly assimilated for this purpose, but an alternative, unexplored, natively anonymous, absolute method would be to use geophysical sensing to directly measure public infrastructure usage. In this paper, we demonstrate how fiber-optic distributed acoustic sensing (DAS) connected to a telecommunication cable beneath Palo Alto, CA, successfully monitored traffic over a 2-month period, including major reductions associated with COVID-19 response. Continuous DAS recordings of over 450,000 individual vehicles were analyzed using an automatic template-matching detection algorithm based on roadbed strain. In one commuter sector, we found a 50% decrease in vehicles immediately following the order, but near Stanford Hospital, the traffic persisted. The DAS measurements correlate with mobile phone locations and urban seismic noise levels, suggesting geophysics would complement future digital city sensing systems.

    View details for DOI 10.1029/2020GL089931

    View details for PubMedID 32834188

    View details for PubMedCentralID PMC7435531

  • Global scale analysis and modelling of primary microseisms GEOPHYSICAL JOURNAL INTERNATIONAL Gualtieri, L., Stutzmann, E., Juretzek, C., Hadziioannou, C., Ardhuin, F. 2019; 218 (1): 560–72

    View details for DOI 10.1093/gji/ggz161

    View details for Web of Science ID 000470320500034

  • Toward High-Resolution Period-Dependent Seismic Monitoring of Tropical Cyclones GEOPHYSICAL RESEARCH LETTERS Retailleau, L., Gualtieri, L. 2019; 46 (3): 1329–37
  • Physics of ambient noise generation by ocean waves Seismic Ambient Noise Ardhuin, F., Gualtieri, L., Stutzmann, E. Cambridge University Press. 2019: 69–108
  • Broad-band seismic analysis and modeling of the 2015 Taan Fjord, Alaska landslide using Instaseis GEOPHYSICAL JOURNAL INTERNATIONAL Gualtieri, L., Ekstrom, G. 2018; 213 (3): 1912–23

    View details for DOI 10.1093/gji/ggy086

    View details for Web of Science ID 000434675800033

  • The persistent signature of tropical cyclones in ambient seismic noise EARTH AND PLANETARY SCIENCE LETTERS Gualtieri, L., Camargo, S. J., Pascale, S., Pons, F. E., Ekstrom, G. 2018; 484: 287–94
  • Detection and analysis of a transient energy burst with beamforming of multiple teleseismic phases GEOPHYSICAL JOURNAL INTERNATIONAL Retailleau, L., Landes, M., Gualtieri, L., Shapiro, N. M., Campillo, M., Roux, P., Guilbert, J. 2018; 212 (1): 14–24

    View details for DOI 10.1093/gji/ggx410

    View details for Web of Science ID 000417176000002

  • Seismic Reconstruction of the 2012 Palisades Rockfall Using the Analytical Solution to Lamb's Problem BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA Gualtieri, L., Ekstrom, G. 2017; 107 (1): 63–71

    View details for DOI 10.1785/0120160238

    View details for Web of Science ID 000394004900006

  • Ray-theoretical modeling of secondary microseism P waves GEOPHYSICAL JOURNAL INTERNATIONAL Farra, V., Stutzmann, E., Gualtieri, L., Schimmel, M., Ardhuin, F. 2016; 206 (3): 1730–39

    View details for DOI 10.1093/gji/ggw242

    View details for Web of Science ID 000384650400021

  • On the shaping factors of the secondary microseismic wavefield JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Gualtieri, L., Stutzmann, E., Capdeville, Y., Farra, V., Mangeney, A., Morelli, A. 2015; 120 (9): 6241–62
  • The frequency dependence and locations of short-period microseisms generated in the Southern Ocean and West Pacific JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Gal, M., Reading, A. M., Ellingsen, S. P., Gualtieri, L., Koper, K. D., Burlacu, R., Tkalcic, H., Hemer, M. A. 2015; 120 (8): 5764–81
  • How ocean waves rock the Earth: Two mechanisms explain microseisms with periods 3 to 300 s GEOPHYSICAL RESEARCH LETTERS Ardhuin, F., Gualtieri, L., Stutzmann, E. 2015; 42 (3): 765–72
  • Modelling the ocean site effect on seismic noise body waves GEOPHYSICAL JOURNAL INTERNATIONAL Gualtieri, L., Stutzmann, E., Farra, V., Capdeville, Y., Schimmel, M., Ardhuin, F., Morelli, A. 2014; 197 (2): 1096–1106

    View details for DOI 10.1093/gji/ggu042

    View details for Web of Science ID 000334736600030

  • Finite-difference P wave travel time seismic tomography of the crust and uppermost mantle in the Italian region GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS Gualtieri, L., Serretti, P., Morelli, A. 2014; 15 (1): 69–88
  • Modelling secondary microseismic noise by normal mode summation GEOPHYSICAL JOURNAL INTERNATIONAL Gualtieri, L., Stutzmann, E., Capdeville, Y., Ardhuin, F., Schimmel, M., Mangeney, A., Morelli, A. 2013; 193 (3): 1732–45

    View details for DOI 10.1093/gji/ggt090

    View details for Web of Science ID 000319482100045