Cedric Twardzik


Observatoire de la Côte d'Azur

Laboratoire Geoazur



Bureau 214 -- Batiment 4

250 Rue Albert Einstein

06460 Valbonne (Fr.)


twardzik(at)geoazur.unice.fr



Monitor Waveforms Quality

Plot Surface Deformation

Plot Focal Mechanisms

Curriculum Vitae

Github

▶︎ 2022 Transient brittle creep mechanism explains early postseismic phase of the 2011 Tohoku-Oki megathrust earthquake: observations by high-rate GPS solutions

Periollat, A., Radiguet, M., Weiss, J., Twardzik, C., Amitrano, D., Cotte, N., Marill, L., and Socquet, A.

J. Geophys. Res. Solid Earth, 127(8), e2022JB024005, doi:10.1029/2022JB024005


▶︎ 2021 Very early identification of a bimodal frictional behavior during the post-seismic phase of the 2015 Mw8.3 Illapel, Chile, earthquake

Twardzik, C., Vergnolle, M., Sladen, A., and Tsang, L. L. H.

Solid Earth, 12, 2523-2537, doi:10.5194/se-12-2523-2021


▶︎ 2021 Locating surface deformation induced by earthquakes using GPS, GLONASS and Galileo ionospheric sounding from a single station

Zedek, F., Rolland, L. M., Mikesell, T. D., Sladen, A., Delouis, B., Twardzik, C., and Coïsson, P.

Adv. Space Res., 68(8), 3403-3416, doi:10.1016/j.asr.2021.06.011


▶︎ 2021 Seismic and aseismic fault slip during the initiation phase of the 2017 Mw=6.9 Valparaíso earthquake

Caballero, E., Chounet, A., Duputel, Z., Jara, J., Twardzik, C., and Jolivet, R.

Geophys. Res. Lett., 48(6), e2020GL091916, doi:10.1029/2020GL091916


▶︎ 2019 Imaging rapid early afterslip of the 2016 Pedernales earthquake, Ecuador

Tsang, L. L. H., Vergnolle, M., Twardzik, C., Sladen, A., Nocquet, J.-M., Rolandone, F., Agurto-Detzel, H., Cavalié, O., Jarrin, P., and Mothes, P.

Earth Planet. Sci. Lett., 524, 115724, doi:10.1016/j.epsl.2019.115724


▶︎ 2019 Preparing for InSight: Evaluation of the blind test for martian seismicity

van Driel, M., Ceylan, S., Clinton, J. F., Giardini, D., Lognonné, P., Banerdt, B., Drilleau, M., Murdoch, N., Panning, M. P., Garcia, R., Mimoun, D., Golombek, M. P., Weber, R., Böse, M., Daubar, I., Kenda, B., Khan, A., Perrin, L., Spiga, A., Boxberg, M. S., Paffrath, M., Ditz, M., Lamert, A., Möller, T., Zhang, S., Ambrois, D., Chèze, J., Peix, F., Alemany, H., Mercerat, D., Balestra, J., Deschamps, A., Twardzik, C., Rolland, L., Mader, S., Marten, L., Schröer, C., Becker, D., Casademont, T., Dethof, F., Essing, D., Grunert, K., Hadziioannou, C., Hochfeld, I., Kilchling, T., Mehrkens, F., Neumann, P., Neurath, R., Steinmann, R., Trumpik, N., Werdenbach-Jarklowski, P., Hu, H., Li, J., Zheng, Y., Stutzmann, E., Schimmel, M., Hammer, C., Knapmeyer-Endrun, B., Stähler, S. C., Brinkman, N., Kedar, S., Euchner, F., Fernando, B., Tskhmistrenko, M., Hosseini, K., Haindl, C., Godwin, H., Szenicer, A., Garth, T., and Allam, A.

Seis. Res. Lett., 90(4), 1518-1534, doi:10.1785/0220180379


▶︎ 2019 Imaging of seismogenic asperities of the 2016 ML6.0 Amatrice, Central, Italy, earthquake through dynamic rupture simulation

Aochi, H., and Twardzik, C.

Pure Appl. Geophys., doi:10.1007/s00024-019-02199-z


▶︎ 2019 Kinematics of the 2012 Ahar-Varzaghan complex earthquake doublet (Mw6.5 and Mw6.3)

Momeni, S. M., Aoudia, A., Tatar, M., Twardzik, C., and Madariaga, R.

Geophys. J. Int., 217(3), 2097-2124, doi:10.1093/gji/ggz100


▶︎ 2019 Unravelling the contribution of early postseismic deformation using sub-daily GNSS positioning

Twardzik, C., Vergnolle, M., Sladen, A., and Avallone, A.

Sci. Rep., 9(1775), doi:10.1038/s41598-019-39038-z


▶︎ 2017 Exploring the Uncertainty Range of Coseismic Stress Drop Estimations of Large Earthquakes Using Finite Fault Inversions

Adams, M., Twardzik, C., and Ji, C.

Geophys. J. Int., 208(1), 86-100, doi:10.1093/gji/ggw374.


▶︎ 2016 The Earthquake-Source Inversion Validation (SIV) Project

Mai, P. M., Schorlemmer, D., Page, M., Ampuero, J. P., Asano, K., Causse, M., Custodio, S., Fan, W., Festa, G., Galis, M., Gallovic, F., Imperatori, W., Käser, M., Malytskyy, D., Okuwaki, R., Pollitz, F., Passone, L., Razafindrakoto, H. N. T., Sekiguchi, H., Song, S. G., Somala, S. N., Thingbaijam, K. K. S., Twardzik, C., van Driel, M., Vyas, J. C., Wang, R., Yagi, Y., and Zielke, O.

Seis. Res. Lett., 87(3), 690–708, doi:10.1785/0220150231.


▶︎ 2016 Modeling of the Coseismic Electromagnetic Fields Observed During the 2004 Mw6.0 Parkfield Earthquake

Gao, Y., Harris, J. M., Wen, J., Huang, Y., Twardzik, C., Chen, X., and Hu, H.

Geophys. Res. Lett., 43(2), 620–627, doi:10.1002/2015GL067183.


▶︎ 2015 The Mw7.9 2014 Intraplate Intermediate-Depth Rat Islands Earthquake and its Relation to Regional Tectonics

Twardzik, C., and Ji, C.

Earth Planet. Sci. Lett., 431, 26-35, doi:10.1016/j.epsl.2015.08.033.


▶︎ 2015 InSAR Measurement of the Deformation Around Siling Co Lake: Inferences on the Lower Crust Viscosity in Central Tibet

Doin, M. P., Twardzik, C., Ducret, G., Lasserre, C., Guillaso, S., and Jianbao, S.

J. Geophys. Res. Solid Earth, 120(7), 5290-5310, doi:10.1002/2014JB011768.


▶︎ 2015 Rupture History of 2014 Mw6.0 South Napa Earthquake Inferred From Near-Fault Strong Motion Data and its Impact to the Practice of Ground Strong Motion Prediction

Ji, C., Archuleta, R. J., and Twardzik, C.

Geophys. Res. Lett., 42(7), 2149-2156, doi:10.1002/2015GL063335.


▶︎ 2014 Inversion for the Physical Parameters that Control the Source Dynamics of the 2004 Parkfield Earthquake

Twardzik, C., Das, S., and Madariaga, R.

J. Geophys. Res. Solid Earth, 119(9), 7010-7027, doi:10.1002/2014JB011238.


▶︎ 2012 Robust Features of the Source Process for the 2004 Parkfield, California, Earthquake From Strong-Motion Seismograms

Twardzik, C., Madariaga, R., Das, S., and Custódio, S.

Geophys. J. Int., 191(3), 1245-1254, doi:10.1111/j.1365-246X.2012.05653.x.