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P E O P L E

F A C U L T Y

  • Jessica Pilarczyk
      • Associate Professor
      • Tier II Canada Research Chair in Coastal Hazards
      • B.Sc, McMaster University
      • PhD, McMaster University

    I aim to understand how coastal systems have been altered by both extreme events (storms, tsunamis) and gradual environmental changes over the Holocene. My aim is to extend the short-term instrumental record, and through this improved understanding of impacts and processes, enhance our ability to forecast how coastal systems will respond in the future. Many of the best reconstructions of coastal systems have been derived from sedimentological and paleontological proxies and my research primarily uses sedimentary, geochemical, and microfossil evidence to better understand the paleo-record in a variety of coastal systems (temperate, tropical, and arid environments). My current research interests fall into, but are not limited to, three broad themes: (1) the application of microfossils in monitoring and reconstructing coastal environments, (2) the role of storms and tsunamis on coastal evolution, and (3) the assessment of the risk of future great earthquakes along subduction zone coastlines using paleoseismology.

    • Peer-reviewed articles in journals (students supervised are underlined)
      • Giang, A., Pilarczyk, J.E., Hong, I., Riou, L., Huntley, D., MacLeod, R., Ward, O.G., Clague, J.J., Bobrowsky, P., Hawkes, A.D., Engelhart, S.E., Horton, B.P., 2025. Elemental geochemistry of tidal marsh sediment and its potential as an indicator of sea-level change in Cascadia. Geochemistry, Geophysics, Geosystems 26, e2024GC012129.
      • Staisch, L.M., Witter, R.C., Watt, J.T., Grant, A.R., Walton, M.A., Brothers, D., Davis, E., Dura, C., Engelhart, S., Enkin, R., Garrison-Laney, C.E., Goldfinger, C., Hamilton, T., Hawkes, A., Hill, J.C., Hong, I.J., Jaffe, B.E., Kelsey, H., Lahusen, S.R., La Selle, S.M., Nelson, A.R., Nieminski, N.M., Padgett, J.S., Patton, J., Pearl, J.K., Pilarczyk, J.E., Sherrod, B., Stanton, K., 2024. Complied onshore and offshore paleoseismic data along the Cascadia Subduction zone. U.S. Geological Survey data release, https://doi.org/10.5066/P13OJQYW.
      • Giang, A., Hong, I., Pilarczyk, J.E., 2024. Reconstructing coastal evidence for earthquakes and tsunamis using elemental (XRF) geochemistry. PAGES Magazine 32(1), 30-31.
      • Majewski, J.M., Switzer, A.D., Guan, R.Y.S., Benazir, B., Meilianda, E., Parham, P.R., Weiss, R., Martin, S., Pearson, L.K., Pilarczyk, J.E., Daly, P., Horton, B.P., 2023. Sediment analysis and historical context of the 2018 Palu-Donggala tsunami deposit, Indonesia. Marine Geology 466, 107159.
      • Hein, C.J., Pilarczyk, J.E., Brain, M., Green, A.N., Lau, A.Y.A., Ramos, N., 2023. From cores to code: Enhancing data-model integration to improve forecasts of coastal change – an introduction to IGCP Project 725. Coastal Sediments 2023 2340-2354, doi, 10.1142/9789811275135_0215
      • Spiske, M., Pilarczyk, J.E., Mitchell, S., Halley, R.B., Otai, T., 2022. Coastal erosion and sediment reworking caused by Hurricane Irma – Implications for storm impact on low-lying tropical islands. Earth Surface Processes and Landforms, 1-17, doi: https://doi.org/10.1002/esp.5293
      • Mitchell, S., Pilarczyk, J.E., Spiske, M., Jaffe, B., 2022. Nearshore microfossil assemblages in a Caribbean reef environment show variable rates of recovery following Hurricane Irma. Sedimentology, 69(3), 1209-1230.
      • Pilarczyk, J.E., Sawai, Y., Namegaya, Y., Tamura, T., Tanigawa, K., Matsumoto, D., Shinozaki, T., Fujiwara, O., Shishikura, M., Shimada, Y., Dura, T., Horton, B.P., Parnell, A.C., Vane, C.H., 2021. A further source of Tokyo earthquakes and Pacific Ocean Tsunamis. Nature Geoscience 14, 796-800. doi: https://doi.org/10.1038/s41561-021-00812-2
      • DePaolis, J.M., Dura, T., MacInnes, B., Ely, L., Cisternas, M., Carvajal, M., Tang, H., Fritz, H.M., Mizobe, C., Wesson, R.L., Figueroa, G., Brennan, N., Horton, B.P., Pilarczyk, J.E., Corbett, D.R., Gill, B.C., Weiss, R., 2021. Coastal stratigraphic evidence of recent tsunami inundation in north-central Chile. Quaternary Science Reviews 266, 107052
      • Laksono, F.A.T., Tsai, L.L-Y., Pilarczyk, J.E., 2020. The sedimentological record of upper Holocene tsunami event in Fengbin, Taiwan. Geopersia, doi: 10.22059/GEOPE.2020.301603.648548
      • Dashtgard, S.E., Ludvig, L., Vaucher, R., Pan, Y., Pilarczyk, J.E., Castelltort, S., 2020. Tropical cyclone deposits in the Pliocene Taiwan Strait: Processes, examples, and conceptual model. Sedimentary Geology 405, 105687
      • Shinozaki, T., Sawai, Y., Ito, K., Hara, J., Matsumoto, D., Tanigawa, K., Pilarczyk, J.E., 2020. Recent and historical tsunami deposits from Lake Tokotan, eastern Hokkaido, Japan, inferred from nondestructive, grain size, and radioactive cesium analyses. Natural Hazards, doi.org/10.1007/s11069-020-04007-7
      • Chen, H., Shaw, T.A., Wang, J., Engelhart, S., Nikitina, D., Pilarczyk, J.E., Walker, J., Garcia-Artola, A., Horton, B.P., 2020. Salt-marsh foraminiferal distributions from Mainland Northern Georgia, USA: an assessment of their viability for sea-level studies. Open Quaternary 6(6), 1-19, doi.org/10.5334/oq.80
      • Pilarczyk, J.E., Sawai, Y., Matsumoto, D., Namegaya, Y., Nishida, N., Ikehara, K., Fujiwara, O., Gouramanis, C., Dura, T., Horton, B.P., 2020. Constraining sediment provenance for tsunami deposits using distributions of grain size and foraminifera from the Kujukuri coastline and shelf, Japan. Sedimentology 67, 1373-1392.
      • Engelhart, S.E., Pilarczyk, J.E., Rovere, A., 2019. Storms and extreme events: Insights from the historical and paleo record. PAGES Magazine 27, 26-27. []
      • Vaziri, H., Reinhardt, E.G., Pilarczyk, J.E., 2019. Coastal foraminifera from the Iranian coast of Makran, Oman Sea (Chabahar Bay to Gawater Bay) as an indicator of tsunamis. Geopersia 35, 43-63. []
      • Pilarczyk, J.E., Sawai, Y., Matsumoto, D., Namegaya, Y., Nishida, N., Ikehara, K., Fujiwara, O., Gouramanis, C., Dura, T., Horton, B.P., 2019. Constraining sediment provenance for tsunami deposits using distributions of grain size and foraminifera from the Kujukuri coastline and shelf, Japan. Sedimentology, doi, 10.1111/sed.12591 []
      • Garrett, E., Pilarczyk, J.E., Brill, D., 2018. Preface to Marine Geology Special Issue: Geological Records of Extreme Wave Events. Marine Geology 396, 1-5. []
      • Kosciuch, T.J., Pilarczyk, J.E., Hong, I., Fritz, H.M., Horton, B.P., Rarai, A., Harrison, M.J., Jockley, F.R.,2018 in press. Foraminifera reveal a shallow nearshore origin for overwash sediments deposited by Tropical Cyclone Pam in Vanuatu (South Pacific). Marine Geology 396, 171-185. []
      • Hong, I., Pilarczyk, J.E., Horton, B.P., Fritz, H.M., Kosciuch, T.J., Wallace, D.J, Dike, C., Rarai, A., Harrison, M.J., Jockley, F.R.,2018 in press. Sedimentological characteristics of the 2015 Tropical Cyclone Pam overwash sediments from Vanuatu, South Pacific. Marine Geology 396, 205-214. []
      • Soria, J.L.A., Switzer, A.D., Pilarczyk, J.E., Tang, H., Weiss, R., Siringan, F., Manglicmot, M., Gallentes, A., Lau, A.Y., Lin, A.C.Y., Ling, T.K.W., 2018. Typhoon Haiyan storm surge carried two distinct sediment assemblages on the carbonate coast of Hernani, Samar, central Philippines. Marine Geology 396, 215-230.[]
      • Soria, J.L.A., Switzer, A.D., Pilarczyk, J.E., Siringan, F.P., Khan, N.S., Fritz, H.M., 2017. Typhoon Haiyan overwash sediments from Leyte Gulf coastlines show local variations with hybrid storm and tsunami signatures. Sedimentary Geology 358, 121-138. picture_as_pdfDownload
      • Dura, T., Horton, B.P., Cisternas, M., Ely, L.L., Hong, I., Nelson, A.R., Wesson, R.L., Pilarczyk, J.E., Parnell, A., Nikitina, D., 2017. Subduction zone slip variability during the last millennium, south-central Chile. Quaternary Science Reviews 175, 112-137.
      • Rubin, C.M., Horton, B.P., Sieh, K., Pilarczyk, J.E., Daly, P., Ismail, N., Parnell, A.C., 2017. Highly variable recurrence of tsunamis in the 7,400 years before the 2004 Indian Ocean tsunami. Nature Communications 8, 16019. picture_as_pdfDownload
      • Matsumoto, D., Sawai, Y., Yamada, M., Namegaya, Y., Shinozaki, T., Takeda, D., Fujino, S., Tanigawa, K., Nakamura, A., Pilarczyk, J.E., 2016. Erosion and sedimentation during the September 2015 flooding of the Kinu River, central Japan. Nature Scientific Reports 6, 34168. picture_as_pdfDownload
      • Pilarczyk, J.E., Horton, B.P., Soria, J.L.A., Switzer, A.D., Siringan, F., Fritz, H.M., Khan, N.S., Ildefonso, S., Doctor, A.A., Garcia, M.L., 2016. Micropaleontology of the 2013 Typhoon Haiyan deposit from the Leyte Gulf, Philippines. Sedimentary Geology 339, 104-114. picture_as_pdfDownload
      • Kelsey, H., Engelhart, S.E., Pilarczyk, J.E., Horton, B.P., Rubin, C.M., Daryono, M., Ismail, N., Hawkes, A.D., Bernhardt, C., Cahill, N., 2015. Accommodation space, relative sea level, and the archiving of paleo-earthquakes along subduction zones. Geology 43, 675-678. picture_as_pdfDownload
      • Sieh, K., Daly, P., McKinnon, E.E., Pilarczyk, J.E., Chiang, H.-W., Horton, B.P., Rubin, C.M., Shen, C.-C., Ismail, N., Vane, C., 2015. Penultimate predecessors of the 2004 Indian Ocean tsunami in Aceh, Sumatra: stratigraphic, archaeological and historical evidence. Journal of Geophysical Research - Solid Earth 120, 308-325. picture_as_pdfDownload
      • Dura, T., Cisternas, M., Horton, B.P., Ely, L.L., Wesson, R.L., Nelson, A.R., Pilarczyk, J.E., 2015. Coastal evidence of mid-Holocene earthquakes and tsunamis in central Chile. Quaternary Science Reviews 113, 93-111. picture_as_pdfDownload
      • Pilarczyk, J.E., Dura, T., Horton, B.P., Engelhart, S.E., Kemp, A.C., Sawai, Y., 2014. Microfossils in coastal environments as indicators of paleo-earthquakes, tsunamis and storms. Palaeogeography Palaeoclimatology Palaeoecology 413, 144-157. picture_as_pdfDownload
      • Pilarczyk, J.E., Goff, J., Mountjoy, J., Lamarche, G., Pelletier, B., Horton, B.P., 2014. Sediment transport trends from a tropical Pacific lagoon as indicated by Homotrema rubra taphonomy: Wallis Island, Polynesia. Marine Micropaleontology 109, 21-29.
      • Brown, A., Reinhardt, E.G., van Hengstum, P.J., Pilarczyk, J.E., 2014. A coastal Yucatan sinkhole records intense hurricane events. Journal of Coastal Research 30(2), 418-428.picture_as_pdfDownload
      • Pilarczyk, J.E., Horton, B.P., Witter, R.C., Vane, C.H., Goff, J., Chagué-Goff, C., 2012. Sedimentary and foraminiferal evidence of the 2011 Tohoku-oki tsunami on the Sendai coastal plain, Japan. Sedimentary Geology 282, 78-89. picture_as_pdfDownload
      • Pilarczyk, J.E., Reinhardt, E.G., 2012. Homotrema rubrum (Lamarck) taphonomy as an overwash indicator in marine ponds on Anegada, British Virgin Islands. Natural Hazards 63 (1), 85-100. picture_as_pdfDownload
      • Pilarczyk, J.E., Reinhardt, E.G., 2012. Testing foraminiferal taphonomy as a tsunami indicator in a shallow arid system lagoon: Sur, Sultanate of Oman. Marine Geology 295-298, 128-136.picture_as_pdfDownload
      • Reinhardt, E.G., Pilarczyk, J.E., Brown, A., 2012. Probable tsunami origin for a shell and sand sheet from marine ponds on Anegada, British Virgin Islands. Natural Hazards 63 (1), 101-117.picture_as_pdfDownload
      • Pilarczyk, J.E., Reinhardt, E.G., Boyce, J.I., Schwarcz, H.P., Donato, S.V., 2011. Assessing surficial foraminiferal distributions as an overwash indicator in Sur Lagoon, Sultanate of Oman. Marine Micropaleontology 80, 62-73.picture_as_pdfDownload
      • Donato, S.V., Reinhardt, E.G., Boyce, J.I., Pilarczyk, J.E., Jupp, B.P. 2009. Particle-size distribution of inferred tsunami deposits in Sur Lagoon, Sultanate of Oman. Marine Geology 257, 54-64.
      • Chapters within books of edited volumes
      • Pilarczyk, J.E., Horton, B.P., 2015. Mollusca. In: Shennan, I., Horton, B.P., Long, A. (eds.), Sea Level Handbook. John Wiley and Sons picture_as_pdfDownload
      • Other publications
      • Pilarczyk, J.E., Cochran, U., Litchfield, N., Clark, K., Hayward, B., Lamarche, G., Horton, B.P., 2013. White paper: Paleoseismology at the Hikurangi Margin. Geodynamic Processes at Rifting and Subducting Margins (GeoPRISMS).
      • Horton, B.P., MacInnes, B., Gonzalez, F., Hemphill-Haley, E., Switzer, A., Witter, R., Tanioka, Y., Bourgeois, J., Weiss, R., Pilarczyk, J.E., 2012. White paper: Long-term records of tsunamis (and storms) with insights from recent events. National Science Foundation (NSF).
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S T U D E N T S

  • Anthony Giang
    • PhD Candidate
    • B.Sc, AƬ×ÊÔ´°É
    • M.Sc, AƬ×ÊÔ´°É

    I am interested in studying earthquake and tsunami hazards along the coast of British Columbia. My research focuses on identifying paleo-earthquake and paleo-tsunami events from tidal marshes to reconstruct the magnitude and recurrence interval of these events in the past. In particular, my research aims to identify the northern limit of Cascadia earthquakes and to better understand multi-segmented rupture patterns. My research strengthens our understanding of earthquake and tsunami hazards along the entire west coast of North America.

    Thesis Title   
    Assessing along-strike heterogeneity of coseismic subsidence associated with the 1700 CE megathrust earthquake in Northern Cascadia

    • Publications
    • Giang, A., Pilarczyk, J.E., Hong, I., Riou, L., Huntley, D., MacLeod, R., Ward, O.G., Clague, J.J., Bobrowsky, P., Hawkes, A.D., Engelhart, S.E., Horton, B.P., 2025. Elemental geochemistry of tidal marsh sediment and its potential as an indicator of sea-level change in Cascadia. Geochemistry, Geophysics, Geosystems 26, e2024GC012129.
    • Giang, A., Hong, I., Pilarczyk, J.E., 2024. Reconstructing coastal evidence for earthquakes and tsunamis using elemental (XRF) geochemistry. PAGES Magazine 32(1), 30-31.
  • Brandon Nasr
    • M.Sc Student
    • B.Sc, University of California Santa Cruz 

    Every year on average 40 tropical storms batter the western North Pacific causing loss of life and damage to infrastructure. Yet, our understanding of these storms is limited to the last 75 years of recorded instrument data. My research will involve using geochemical proxies, grainsize, microfossil, and stratigraphical correlations to investigate geologic records from coastal ponds found on the western North Pacific islands to identify prehistoric tropical cyclones. This research aims to deepen our understanding of the frequency, track, and intensity of tropical cyclones in the western North Pacific.

    Thesis Title   
    Reconstructing a long-term history of past Tropical Cyclone events in the western North Pacific.

    • Publications
    • Lynett P., McCann M., Zhou Z., Renteria W., Borrero J., Greer D., Fa’anunu O., Bosserelle C., Jaffe B., La Selle S.P., Ritchie A., Snyder A., Nasr B., Bott J., Graehl N., Synolakis C., Ebrahimi B., and Cinar G.E., 2022. "Diverse tsunamigenesis triggered by the Hunga Tonga-Hunga Ha’apai eruption", Nature, 609, pp. 728 – 733(7928), Journal. https://www.nature.com/articles/s41586-022-05170-6
    • La Selle, S.M., Snyder, A.G., Nasr, B.M., Jaffe, B.E., Ritchie, A.C., Graehl, N., and Bott, J., 2022, "Observations of tsunami and runup heights in Santa Cruz Harbor and surrounding beaches from the 2022 Hunga Tonga-Hunga Ha'apai tsunami": U.S. Geological Survey data release. https://cir.nii.ac.jp/crid/1882836540685425920
    • Nasr, B., La Selle, S., Nelson, A., Dura, T., Witter, R., and Jaffe, B.E., 2021, "Prehistoric tsunami deposits in Floras Lake, Oregon: Using vibracore data to identify tsunami events and constrain rupture recurrence intervals along the southern Cascadia Subduction Zone", AGU Fall Meeting, EP25B-0553 2021. https://ui.adsabs.harvard.edu/abs/2021AGUFMNH25B0553N/abstract
  • Andreas (Andi) Peffeköver
    • PhD Student
    • B.Sc, University of Cologne  
    • M.Sc, University of Cologne

    My research aims to decipher the long-term frequency-magnitude patterns of extreme wave events in coastal areas using multi-proxy approaches involving sedimentological, geochemical, and geochronological analyses.

    I anticipate that findings of my projects will be translated into actionable strategies that enhance the resilience of often marginalized coastal communities, including those for which no risk assessments or evacuation plans are in place.

    Thesis Title   
    Exploring millennial-scale variabilities and climate drivers of tropical cyclones in the western North Pacific: geologic evidence from blue hole and lagoon records in the Pacific deep tropics

    • Publications
    • Riedesel, S., Guérin, G., Thomsen, K. J., Sontag-González, M., Blessing, M., Botha, G. A., Hellers, M., Möller, G., Peffeköver, A., Sommer, C., Zander, A., Will, M., 2024. A direct comparison of single-grain and multi-grain aliquot luminescence dating of feldspars from colluvial deposits in KwaZulu-Natal, South Africa, Geochronology, 7, 59–81, https://doi.org/10.5194/gchron-7-59-2025.
    • Seeger, K., Peffeköver, A., Minderhoud, P. S. J., Vogel, A., Brückner, H., Kraas, F., Nay Win Oo, Brill, D., 2024. Evaluating flood hazards in data-sparse coastal lowlands: highlighting the Ayeyarwady Delta (Myanmar). Environmental Research Letters 19 (8), 084007, https://doi.org/10.1088/1748-9326/ad5b07.
    • Seeger, K., Minderhoud, P. S. J., Peffeköver, A., Vogel, A., Brückner, H., Kraas, F., Nay Win Oo, Brill, D., 2023. Assessing land elevation in the Ayeyarwady Delta (Myanmar) and its relevance for studying sea level rise and delta flooding. Hydrol. Earth Syst. Sci., 27, 2257–2281, https://doi.org/10.5194/hess-27-2257-2023.
  • Ruoyu (Mermer) Wang
    • PhD Student
    • B.E.S., University of Waterloo 

    I am interested in coastal hazards and risk management, specifically earthquakes history and tsunami modelling. My research aims to bridge the knowledge gaps for the paleoseismic history of Northern Cascadia and its multi-segmented behaviour by studying the microfossils inhabiting the tidal marshes along Vancouver Island. These new geologic constraints will assist in further refining earthquake and tsunami models used by coastal communities to prepare for future hazards.

    Thesis Title  
    Reconstructing late Holocene paleoearthquakes in Northern Cascadia using tidal marsh microfossils to aid tsunami inundation modelling 

    • Publications
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A L U M N I

  • Completed Students and Postdocs
    • Current positions held by alumni are italicized
      • Ayla Nguyen - NSERC USRA (2020 - 2022),  M.Sc student (2022 - 2025)
      • Stephen Bartlett - M.Sc student (2021 - 2025)
        Research Technician, University of Wisconsin, Madison
      • Louise Riou - M.Sc student (2021 - 2024)
        Environmental Scientist, Active Earth
      • Stephen Bartlett - M.Sc student (2021 - 2025)
        Research Technician, University of Wisconsin, Madison
      • Anthony Giang - NSERC/VPR USRA (2019, 2020, 2021),  Hons. B.Sc thesis (2021), M.Sc student (2021 - 2024)
        PhD Candidate at AƬ×ÊÔ´°É
      • Courtney Whitehead - Undergraduate research assistant (2023)
      • Chantal Fiola  - NSERC USRA student (2022)
      • Isabel Hong - NSF Postdoctoral Fellow (2020 - 2022)
        Assistant Professor at Villanova University
      • Lillian Pearson  - M.Sc student (2018 - 2021)
        Ceiba Foundation for Tropical Conservation
      • Tiffany Otai - M.Sc student (2018 - 2020)
        Environmental Scientist, Verina Consulting Group
      • Stephen Mitchell - B.Sc thesis (2017 - 2018),  M.Sc student (2018 - 2020)
        Environmental Specialist, New Jersey Department of Environmental Protection
      • Anne Griffis  - M.Sc student (2016 – 2018)
        Maryland Department of Natural Resources
      • Thomas Kosciuch  - M.Sc student (2016 - 2018)
        Data Scientist

Coastal Hazards Research Lab
Department of Earth Sciences
AƬ×ÊÔ´°É
Burnaby, BC Canada