Earthquakes that occur within regions of slow lithospheric deformation (low-strain regions) are inherently difficult to study. The long interval between earthquakes, coupled with natural and anthropogenic modification, limit preservation of paleoearthquakes in the landscape. Low deformation rates push the limits of modern geodetic observation techniques. The short instrumental record challenges extrapolation of small earthquake recurrence based on modern seismological measurement to characterize the probability of larger, more damaging earthquakes. Characterizing the earthquake cycle in low-strain settings is further compounded by temporal clustering of earthquakes, punctuated by long periods of quiescence (e.g. non-steady recurrence intervals). However, earthquakes in slowly deforming regions can reach high magnitudes and pose significant risk to populations.

This session seeks to integrate paleoseismic, geomorphic, geodetic, geophysical, and seismologic datasets to provide a comprehensive understanding of the earthquake cycle in low-strain regions. This session will draw upon recent advances in high-resolution topography, geochronology, satellite geodesy techniques, subsurface imaging techniques, longer seismological records, high-density geophysical networks and unprecedented computational power to explore the driving mechanisms for earthquakes in low-strain settings. We welcome contributions that (1) present new observations that place constraints on earthquake occurrence in low-strain regions, (2) explore patterns of stable or temporally varying earthquake recurrence, and (3) provide insight into the mechanisms that control earthquakes in regions of slow deformation via observation and/or modeling.

Co-organized as NH4.18/SM2.10
Convener: Ryan Gold | Co-conveners: Pierre Arroucau, Sierd Cloetingh, Susana Custódio, Gordana Vlahovic
| Thu, 11 Apr, 16:15–18:00
Room K2
| Attendance Fri, 12 Apr, 10:45–12:30
Hall X2

Attendance time: Friday, 12 April 2019, 10:45–12:30 | Hall X2

Chairperson: Susana Custodio
X2.215 |
Ganzorig Davaasuren, Klinger Yann, Bernard Pascal, Lyon-Caen Hélène, Demberel Sodnomsambuu, and Ulziibat Munkhuu
X2.216 |
Jiansi Yang and Weiping Wang
X2.217 |
Avigyan Chatterjee, Supriyo Mitra, Riddhi Mandal, Shubham Sharma, and Ajay Kumar
X2.219 |
| presentation
Federica Riguzzi, Basab Mukhopadhyay, Mallika Mullick, and Diptansu Sengupta
X2.220 |
Active blind wedge thrust system at the eastern Achara-Trialeti fold-and-thrust belt (Kumisi-Teletei area), Georgia
Aleksandre Gventsadze, Victor Alania, Onise Enukidze, and Nino Kvavadze
X2.221 |
Francesco Emanuele Maesano, Valentina Volpi, Dario Civile, Alessia Conti, Mara Monica Tiberti, Rudy Conte, Fabrizio Zgur, Alessandro Rebez, Roberto Basili, and Giuliana Rossi
X2.222 |
Ferdinando Napolitano, Luca De Siena, Anna Gervasi, Ignazio Guerra, Roberto Scarpa, and Mario La Rocca
X2.223 |
Mihaela Popa, Raluca Dinescu, Corneliu Dinu, Ioan Munteanu, and Mircea Radulian
X2.224 |
Stefan Weginger, Yan Jia, Maria Papi-Isaba, and Wolfgang Lenhardt
X2.225 |
Mickael Langlais, Olivier Coutant, Agnes Helmstetter, Philippe Gueguen, Emelyne Maufroy, Stéphane Schwartz, and Thierry Dumont
X2.226 |
Maxime Godano, Anne Deschamps, Bertrand Delouis, Etienne Bertrand, Jérôme Chèze, Philippe Langlaude, Xavier Martin, and Michel Pernoud
X2.228 |
Analdyne Soares, Susana Custodio, Marta Neres, Dina Vales, and Luis Matias
X2.229 |
George Bozionelos, Sebastiano D' Amico, Pauline Galea, and Matthew Agius
X2.230 |
James Grannell, Pierre Arroucau, Sergei Lebedev, Martin Moellhoff, and Christopher Bean
X2.231 |
Eduard Ilie Nastase, Victor Mocanu, Alexandra Muntean, Boudewijn Ambrosius, Corne Kreemer, William Hammond, Geoffrey Blewitt, Sorin Nistor, and Dragos Tataru
X2.232 |
Dalma Trosits, László Tóth, Ferenc Horváth, Tamás János Katona, and Tamás Tóth
X2.233 |
Sackungen record four major Holocene earthquakes on the Reelfoot fault, New Madrid seismic zone, U.S.A.
Ryan Gold, Christopher DuRoss, Jaime Delano, Randall Jibson, Richard Briggs, Shannon Mahan, Robert Williams, and D. Reide Corbett