The main focus of my research has been the identification and differentiation of tsunami and storm deposits in the Holocene.

This mainly involves the use of sedimentological techniques such as: grain-size analysis, surface microtextural analysis of quartz grains, micromorphology, heavy minerals assemblages and numerical modelling.
I have applied this methodology to deposits from Portugal, Scotland, Indonesia, United States, Spain, Chile, Brazil and Japan.

The main purposes of my work are:
a) to contribute to the development of sedimentological criteria to recognize and differentiate tsunami and storm deposits;
b) to better understand the different stages of the hydro and morphodynamic processes associated with these events through the study of their geological imprint.

I am currently a Post-Doctoral Research Fellow and Invited Lecturer at the University of Lisbon.

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Costa, P.J. M., Kim, Y. D., Park, Y. S., Quintela, M., Mahaney, W. C., Dourado, F. and Dawson, S. (2017). Imprints in silica grains induced during a wave flume experiment: approach to determine microtextural signatures during aqueous transport. Journal of Sedimentary Research, Volume 87 (7), 677-687 doi: 10.2110/jsr.2017.39 Link

Costa, P.J. M., Gelfenbaum, G., Dawson, S., La Selle, S., Milne, F., Cascalho, J., Ponte Lira, C., Andrade, C. Freitas, M.C. and Jaffe, B., (2017). The application of microtextural and heavy mineral analysis to discriminate between storm and tsunami deposits. The Geological Society, London, Special Publications, Volume 456 doi:10.1144/SP456.7 Link

Wang, G., Li, J., Ravi, S., Van Pelt, S., Costa, P.J. M., and David, D., (2017). Tracer techniques in aeolian research: Approaches, applications, and challenges. Earth-Science Reviews, Volume 170, 1-16 Link

Moreira, S., Costa, P.J. M., Andrade, C., Ponte Lira, C., Freitas, M.C., Oliveira, M.A. and Reichart, G.-J., (2017). High resolution geochemical and grain-size analysis of the AD 1755 tsunami deposit: Insights on the inland extent and inundation phases. Marine Geology, Available online 19 April 2017. ISSN 0025-3227, Link

Costa, P.J. M., Costas, S., Oliveira, M.A., González-Villanueva, R., Roelvink, D., Andrade, C., Freitas, M.C., Cunha, P.P., Martins, A., Buylaert, J.P. and Murray, A. (2016). The AD 1755 tsunami impact in sand barriers. Geomorphology, Volume 268, 296-311, Link

Costa, P. J., Andrade, C., Cascalho, J., Dawson, A. G., Freitas, M. C., Paris, R. and Dawson, S., (2015). Onshore tsunami sediment transport mechanisms inferred from heavy mineral assemblages. The Holocene. Volume 25, no. 5, 795-809 doi: 10.1177/0959683615569322.LINK

Costa, P. J. M., Andrade, C., Mahaney, W. C., da Silva, F. M., Freire, P., Freitas, M. C., Janardo, C., Oliveira, M. A., Silva, T. and Lopes, V., (2013). Aeolian microtextures in silica spheres induced in a wind tunnel experiment: Comparison with aeolian quartz. Geomorphology, 180, 120-129. doi: 10.1016/j.geomorph.2012.09.011. issn: 0169-555X. LINK

Costa, P. J. M., Andrade, C., Dawson, A. G., Mahaney, W. C., Freitas, M. C., Paris, R. and Taborda, R., (2012). Microtextural characteristics of quartz grains transported and deposited by tsunamis and storms. Sedimentary Geology, 275, 55-69. doi: 10.1016/j.sedgeo.2012.07.013. issn: 0037-0738. LINK

Costa, P. J. M., Andrade, C., Freitas, M. C., Oliveira, M. A., Lopes, V., Dawson, A. G., Moreno, J., Fatela, F. and Jouanneau, J. M., (2012). A tsunami record in the sedimentary archive of the central Algarve coast, Portugal: Characterizing sediment, reconstructing sources and inundation paths. The Holocene, 22, 8, 899-914. doi: 10.1177/0959683611434227. issn: 0959-6836. LINK

Costa, P. J. M., Leroy, S. A. G., Dinis, J. L., Dawson, A. G. and Kortekaas, S., (2012). Recent high-energy marine events in the sediments of Lagoa de Obidos and Martinhal (Portugal): recognition, age and likely causes. Natural Hazards and Earth System Sciences, 12, 5, 1367-1380. doi: 10.5194/nhess-12-1367-2012. issn: 1561-8633. LINK

Costa, P. J. M., Andrade, C., Freitas, M. C., Oliveira, M. A., da Silva, C. M., Omira, R., Taborda, R., Baptista, M. A. and Dawson, A. G., (2011). Boulder deposition during major tsunami events. Earth Surface Processes and Landforms, 36, 15, 2054-2068. issn: 0197-9337. LINK

Costa, P. J. M., Andrade, C., Freitas, M. C., Oliveira, M. A. and Jouanneau, J. M., (2009). Preliminary Results of Exoscopic Analysis of Quartz Grains Deposited by a Palaeotsunami in Salgados Lowland (Algarve, Portugal). Journal of Coastal Research, 39-43. issn: 0749-0208. LINK

Cascalho, J., Costa, P.J.M., Dawson, S., Milne, F. and Rocha, A. (2016). Heavy mineral assemblages of the Storegga tsunami deposit. Sedimentary Geology, Volume 334, 21-33, Link

Quintela, M., Costa, P. J. M., Fatela, F., Drago, T., Hoska, N., Andrade, C. and Freitas, M. C. (2016). The AD 1755 tsunami deposits onshore and offshore of Algarve (south Portugal): Sediment transport interpretations based on the study of Foraminifera assemblages. Quaternary International.Volume 408, Part A, 123–138. Link

Leroy, S. A. G., Schwab, M. J. and Costa, P. J. M., (2010). Seismic influence on the last 1500-year infill history of Lake Sapanca (North Anatolian Fault, NW Turkey). Tectonophysics, 486, 1-4, 15-27. doi: 10.1016/j.tecto.2010.02.005. issn: 0040-1951. LINK

Mahaney, W., Allen, C., Pentlavalli, P., Kulakova, A., Young, J., Dirszowsky, R., West, A., Kelleher, B., Jordan, S., Pulleyblank, C., O’Reilly, S., Lasberg, K., Somelar, P., Garneau, M., Kalm, V., Costa, P., Hancock, R., Hart, K., Tricart, P., Barendregt, R., Bunch, T., Milner, M. (2016). Biostratigraphic Evidence relating to the Age-Old Question of Hannibal’s Invasion of Italy: I, History and Geological Reconstruction. Archaeometry. Online ISSN: 1475-4754. Link

Mahaney, W. C., Dohm, J. M., Costa, P. and Krinsley, D. H., (2010). Tsunamis on Mars: Earth analogues of projected Martian sediment. Journal of Planetary and Space Science, 58, 14–15, 1823-1831. doi: issn: 0032-0633. LINK

St-Onge, G., Chapron, E., Mulsow, S., Salas, M., Viel, M., Debret, M., Foucher, A., Mulder, T., Winiarski, T., Desmet, M., Costa, P. J. M., Ghaleb, B., Jaouen, A. and Locat, J., (2012). Comparison of earthquake-triggered turbidites from the Saguenay (Eastern Canada) and Reloncavi (Chilean margin) Fjords: Implications for paleoseismicity and sedimentology. Sedimentary Geology, 243, 89-107. doi: 10.1016/j.sedgeo.2011.11.003. issn: 0037-0738. LINK


Costa, P.J.M. and Andrade, C. (2017). Filed Guide 5th International Tsunami Field Symposium. September 2017. 97 pages. ISBN: 978-989-20-7817-5 Link

Leroy, S. A. G. C., Costa, P.J.M. (2004). Volume of abstracts and field guide – ICSU Dark Nature – IGCP 490. Mauritania January 2004- 1st joint meeting. Mauritania. 173 pp. Link


Costa, P. J. M., Oliveira, M. A., González-Villanueva, R., Andrade, C. and Freitas, M. C., (2016). Imprints of the AD 1755 Tsunami in Algarve (South Portugal) Lowlands and Post-impact Recovery. In: V. Santiago-Fandiño, H. Tanaka, M. Spiske (Eds.), Tsunamis and Earthquakes in Coastal Environments: Significance and Restoration. Springer International Publishing, 17-30. Link

Andrade, C., Freitas, M. C., Oliveira, M. A. and Costa, P. J. M., (2016). On the sedimentological and historical evidences of seismic-triggered tsunamis on the Algarve coast of Portugal. Natural Hazards and Plate Tectonics. 29 pp. Edited by Duarte, J. Published by AGU/Wiley. ISBN: 978-1-119-05397-2. Link

Costa, P. J. M. and Dawson, S., (2014). Tsunami Sedimentology. In: A.R. Meyers (Ed.), Encyclopedia of Complexity and Systems Science. Springer Berlin Heidelberg, Berlin, Heidelberg, pp. 1-17. Link

Costa, P. J. M., Andrade, C. and Dawson, S., (2014). Geological recognition of onshore tsunami deposits. Series: Coastal Research Library, Vol. 8 Advances in Coastal and Marine Resources Environmental Management and Governance, 28 pp. Edited by Finkl, C. W., Makowski, Christopher Published by Springer. LINK

Aarup, T., Baptista, M. A., Costa, P., Matias, L. M., Pires, P., Santini, M., Santoro, F., Soddu, P.L., (2013). Tsunami Preparedness Civil Protection – Good Practices Guide. 73 pp. Published by IOC/ UNESCO. LINK

Leroy, S. A. G. C., P. J. M., (2004). Volume of abstracts and field guide – ICSU Dark Nature – IGCP 490. Mauritania January 2004- 1st joint meeting.  Mauritania. 173 pp. LINK


Costa, P. J. M., (2012). Sedimentological signatures of extreme marine inundations. Departamento de Geologia, University of Lisbon, Portugal. PhD thesis. 245 pp. LINK

Costa, P. J. M., (2006). Geological recognition of abrupt marine invasions in two coastal areas of Portugal. Department of Geography and Earth Sciences, Brunel University, London, United Kingdom. MSc thesis. 139 pp. LINK