Events

JSG Happenings

Events

De Ford Lecture Series: Alice-Agnes Gabriel

March, 26 2019

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Brown Bag: Dennis Tong, UTIG (PhD Talk)

March, 27 2019

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Informal weekly presentations by UTIG students and researchers. Bring your lunch!

This week: Dennis Tong presents his PhD defense talk!

Speaker: Dennis Tong, Graduate Research Assistant, UTIG

UTIG Brown Bag: Alice-Agnes Gabriel, LMU Munich

March, 27 2019

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Speaker: Alice-Agnes Gabriel, Ludwig Maximilians University

Host: Thorsten Becker

Title: Dynamic earthquake rupture modeling in fluid-rich fault networks crossing space-time scales: From subduction zones to induced seismicity

Abstract: The Modeling Collaboratory for Subduction currently explores key processes at different temporal and spatial scales that are critical to subduction megathrusts. Modeling how faults slip requires generally numerical methods that span a large range of spatial and temporal scales. In subduction zones, in addition, pronounced geometric and rheological complexity needs to be accounted for.

High-resolution 3D dynamic rupture earthquake scenarios can integrate complex megathrust-splay fault geometries, high resolution topography and bathymetry, 3D subsurface structure and off-fault deformation, as demonstrated in the to-date longest (500 s) and largest (1500 km) dynamic rupture earthquake scenario of the 2004, Mw 9.1-9.3 Sumatra-Andaman earthquake and tsunami (Uphoff et al., SC\'17). Physics-driven, mechanically viable interpretations can be integrated synergistically with established data-driven efforts which is specifically useful in regions lacking near-source observations.

However, initialising such models with self-consistent fault and surface geometry, fault stress and rheology, fluid pressures and subsurface lithology is challenging. This can be overcome in coupled frameworks such as developed in the ASCETE project (www.ascete.de) connecting subduction dynamics over millions of years, seismic cycling and earthquake dynamics down to fractions of a second, as well as tsunami propagation and inundation.

Earthquake dynamics in fluid-rich fault networks are also important on the much smaller scales of geo-reservoirs. Fault networks at geo-reservoir scales are inherently geometrically complex; the dynamic stress released during the rupture process interacts with multiple adjacent fractures and 3D Earth structure acting as interdependent reinforcing and inhibiting factors for rupture cascading. Physics-based modeling can explore the richness of the dynamic response of such geo-reservoirs for example of the 2017 Pohang ML5.4 earthquake, specifically focusing on geometrical and structural complexity, as a potentially segmented rupture plane and mixed faulting mechanisms.

DeFord Lecture: Brian Romans

March, 28 2019

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: Rosie Oakes, Drexel University

March, 29 2019

Time: 10:30 AM - 12:00 PM
Location: PRC ROC Room 1.603

Click to watch online.

Speaker: Rosie Oakes, Drexel University

Host: Chris Lowery

UTIG Brown Bag: Andrew Gase, UTIG

April, 02 2019

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Informal weekly presentations by UTIG students and researchers. Bring your lunch!

Speaker: Andrew Gase, Graduate Research Assistant, UTIG

DeFord Lecture: Christie Rowe

April, 04 2019

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: William Moore, Hampton University

April, 05 2019

Time: 10:30 AM - 12:00 PM
Location: PRC ROC Room 1.603

Click to watch online.

Speaker: William Moore, Hampton University

Host: Thorsten Becker

De Ford Lecture Series: John Doherty

April, 09 2019

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Brown Bag: Stefano Nerozzi, UTIG (PhD Talk)

April, 09 2019

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Informal weekly presentations by UTIG students and researchers. Bring your lunch!

This week: Dennis Tong presents his PhD defense talk!

Speaker: Stefano Nerozzi, Graduate Research Assistant, UTIG

DeFord Lecture: Gabriel Bowen

April, 11 2019

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: Amy Clement, University of Miami

April, 12 2019

Time: 10:30 AM - 12:00 PM
Location: PRC ROC Room 1.603

Click to watch online.

Speaker: Amy Clement, University of Miami

Host: Yuko Okumura

DeFord Lecture: Brian Arbic

April, 16 2019

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Brown Bag: Doug Foster, UTIG

April, 17 2019

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Informal weekly presentations by UTIG students and researchers. Bring your lunch!

Speaker: Doug Foster, Senior Research Scientist, UTIG

DeFord Lecture: Marcello Coradini

April, 18 2019

Time: 4:00 PM - 5:00 PM
Location: JGB 2.324

UTIG Seminar Series: Anne Becel, Lamont-Doherty Earth Observatory

April, 19 2019

Time: 10:30 AM - 12:00 PM
Location: PRC ROC Room 1.603

Click to watch online.

Speaker: Anne Becel, Lamont-Doherty Earth Observatory

Host: Shuoshuo Han

UTIG Brown Bag: Mark Cloos, UT

April, 23 2019

Time: 12:00 PM - 1:00 PM
Location: PRC ROC Room 1.603

Informal weekly presentations by UTIG students and researchers. Bring your lunch!

Speaker: Mark Cloos, Professor, Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin