Articles | Volume 7, issue 6
https://doi.org/10.5194/se-7-1591-2016
https://doi.org/10.5194/se-7-1591-2016
Research article
 | 
29 Nov 2016
Research article |  | 29 Nov 2016

The imprint of crustal density heterogeneities on regional seismic wave propagation

Agnieszka Płonka, Nienke Blom, and Andreas Fichtner

Related authors

Firn seismic anisotropy in the Northeast Greenland Ice Stream from ambient-noise surface waves
Emma Pearce, Dimitri Zigone, Coen Hofstede, Andreas Fichtner, Joachim Rimpot, Sune Olander Rasmussen, Johannes Freitag, and Olaf Eisen
The Cryosphere, 18, 4917–4932, https://doi.org/10.5194/tc-18-4917-2024,https://doi.org/10.5194/tc-18-4917-2024, 2024
Short summary
Towards a dynamic earthquake risk framework for Switzerland
Maren Böse, Laurentiu Danciu, Athanasios Papadopoulos, John Clinton, Carlo Cauzzi, Irina Dallo, Leila Mizrahi, Tobias Diehl, Paolo Bergamo, Yves Reuland, Andreas Fichtner, Philippe Roth, Florian Haslinger, Frédérick Massin, Nadja Valenzuela, Nikola Blagojević, Lukas Bodenmann, Eleni Chatzi, Donat Fäh, Franziska Glueer, Marta Han, Lukas Heiniger, Paulina Janusz, Dario Jozinović, Philipp Kästli, Federica Lanza, Timothy Lee, Panagiotis Martakis, Michèle Marti, Men-Andrin Meier, Banu Mena Cabrera, Maria Mesimeri, Anne Obermann, Pilar Sanchez-Pastor, Luca Scarabello, Nicolas Schmid, Anastasiia Shynkarenko, Bozidar Stojadinović, Domenico Giardini, and Stefan Wiemer
Nat. Hazards Earth Syst. Sci., 24, 583–607, https://doi.org/10.5194/nhess-24-583-2024,https://doi.org/10.5194/nhess-24-583-2024, 2024
Short summary
Introducing noisi: a Python tool for ambient noise cross-correlation modeling and noise source inversion
Laura Ermert, Jonas Igel, Korbinian Sager, Eléonore Stutzmann, Tarje Nissen-Meyer, and Andreas Fichtner
Solid Earth, 11, 1597–1615, https://doi.org/10.5194/se-11-1597-2020,https://doi.org/10.5194/se-11-1597-2020, 2020
Short summary
Seismic waveform tomography of the central and eastern Mediterranean upper mantle
Nienke Blom, Alexey Gokhberg, and Andreas Fichtner
Solid Earth, 11, 669–690, https://doi.org/10.5194/se-11-669-2020,https://doi.org/10.5194/se-11-669-2020, 2020
Short summary

Related subject area

Seismology
Extraction of pre-earthquake anomalies from borehole strain data using Graph WaveNet: a case study of the 2013 Lushan earthquake in China
Chenyang Li, Yu Duan, Ying Han, Zining Yu, Chengquan Chi, and Dewang Zhang
Solid Earth, 15, 877–893, https://doi.org/10.5194/se-15-877-2024,https://doi.org/10.5194/se-15-877-2024, 2024
Short summary
Highlights on mantle deformation beneath the Western Alps with seismic anisotropy using CIFALPS2 data
Silvia Pondrelli, Simone Salimbeni, Judith M. Confal, Marco G. Malusà, Anne Paul, Stephane Guillot, Stefano Solarino, Elena Eva, Coralie Aubert, and Liang Zhao
Solid Earth, 15, 827–835, https://doi.org/10.5194/se-15-827-2024,https://doi.org/10.5194/se-15-827-2024, 2024
Short summary
Frequency-dependent shear wave attenuation across the Central Anatolia region, Türkiye
Gizem Izgi, Tuna Eken, Peter Gaebler, Tülay Kaya-Eken, and Tuncay Taymaz
Solid Earth, 15, 657–669, https://doi.org/10.5194/se-15-657-2024,https://doi.org/10.5194/se-15-657-2024, 2024
Short summary
Coda-derived source properties estimated using local earthquakes in the Sea of Marmara, Türkiye
Berkan Özkan, Tuna Eken, Peter Gaebler, and Tuncay Taymaz
EGUsphere, https://doi.org/10.5194/egusphere-2024-721,https://doi.org/10.5194/egusphere-2024-721, 2024
Short summary
Earthquakes triggered by the subsurface undrained response to reservoir-impoundment at Irapé, Brazil
Haris Raza, George Sand França, Eveline Sayão, and Victor Vilarrasa
EGUsphere, https://doi.org/10.5194/egusphere-2024-166,https://doi.org/10.5194/egusphere-2024-166, 2024
Short summary

Cited articles

Aki, K. and Richards, P.: Quantitative Seismology, University Science Books, 2002.
Anderson, D. L., Schreiber, E., Lieberman, R. C., and Soga, N.: Some elastic constant data on minerals relevant to geophysics, Rev. Geophys. Space Phys., 6, 491–524, 1968.
Backus, G. E. and Gilbert, F.: The resolving power of gross Earth data, Geophys, J. Roy. Astr. Soc., 16, 169–205, 1968.
Backus, G. E. and Gilbert, F.: Uniqueness in the inversion of inaccurate gross Earth data, Philos. T. R. Soc. A, 266, 123–192, 1970.
Becker, T. W. and Boschi, L.: A comparison of tomographic and geodynamic mantle models, Geochem. Geophys. Geosys., 3, 1525–2027, https://doi.org/10.1029/2001GC000168, 2002.
Download
Short summary
Imaging the inside of the Earth requires knowledge of how the Earth's properties affect seismic recordings. However, certain properties, such as density, affect seismograms in a way that is not fully known. Using numerical simulations, we can calculate a synthetic seismogram for a medium with and without density heterogeneities, and then compare the two signals. That way, we quantify the density effect on a seismogram. We also show that it is visible and growing as the wavefield gets scattered.