California Institute of Technology
Seismological Laboratory Division of Geological and Planetary Sciences


Past Brown Bag Seminars


Daniel Faulkner University of Liverpool

DATE: August, 18, 2022
Titls: Links between earthquake size distributions and laboratory frictional properties
Click here for abstract.

Alexis SÁez EPFL Switzerland

DATE: Wednesday, August 24, 2022
TOPIC: Fluid-driven stable fault slip: nucleation, propagation and arrest
Click here for abstract.

Yuji Itoh UniversitE Grenoble

DATE: Tuesday, August 16, 2022
TOPIC: Imaging evolution of Cascadia slow-slip event using high-rate GPS
Click here for abstract.

Eh Tan Institute of Earth Sciences, Academia Sinica, Taiwan

DATE: Tuesday, August 2, 2022
TOPIC: Thermo-mechanical and thermochronological modeling of Taiwan tectonics
Click here for abstract.

Shaozhou Liu KAUST

DATE: June 29, 2022
TOPIC: Hunting for tectonic and climatic signals in GPS position time series
Click here for abstract.

SCSN/Caltech TEam Leads

DATE: May 25, 2022
TOPIC: The Southern California Seismic Network: Who We Are, What We Do, and How We Can Work with You
Click here for abstract.

Colin Bloom University of Canterbury

DATE: May 18, 2022
TOPIC: Controls on Earthquake Induced Landslides and Lessons from the 2016 Mw 7.8 Kaikōura Earthquake, New Zealand
Click here for abstract.

Alexis Le-Pichon and Emanuele Marchetti

DATE: May 11, 2022- **VIA ZOOM**
TOPIC: Global observations of atmospheric waves produced by the January 2022 volcanic eruption of Hunga, Tonga
Click here for abstract.

Vernon Cormier Uiversity of connecticut

DATE: May 04, 2022
TOPIC: Mantle Phase Change Detection from Stochastic Tomography
Click here for abstract.

Osamu Sandanbata National Research Institute

DATE: April 27, 2022
TOPIC: Unusual volcanic tsunamis caused by trapdoor faulting at submarine calderas
Click here for abstract.

Gabrielle Tepp Caltech

DATE: April 6, 2022
TOPIC: How Calderas Collapse: Insights from the 2018 Kilauea Eruption
Click here for abstract.

Han Xiao UC Santa Barbara

DATE: March 30, 2022
TOPIC: Locating the precise sources of high-frequency microseisms using distributed acoustic sensing 
Click here for abstract.

Weiqiang Zhu Caltech

DATE: March 16, 2022
TOPIC:Earthquake simulations with coupled permeability evolution, fluid migration, and fault slip
Click here for abstract.

David Dempsey University of Canterbury

DATE: March 9, 2022
TOPIC: Successes and failures using time-series feature engineering to uncover hidden patterns in seismic signals
Click here for abstract.

Thea Ragon Caltech

DATE: March 2, 2022
TOPIC: A secondary zone of uplift measured after megathrust earthquakes: induced by down-dip afterslip?
Click here for abstract.

Dr. Elif Oral Caltech

DATE: February 23, 2022
TOPIC: Approximating initial fault stresses by using regional seismicity and ground motion data
Click here for abstract.

Rishav Mallick Caltech

DATE: February 16, 2022
TOPIC: The Earth's Surface Controls the Depth-Dependent Seismic Radiation of Megathrust Earthquakes
Click here for abstract.

Jiuxun Yin Caltech

DATE: February 9, 2022
TOPIC: The Earth's Surface Controls the Depth-Dependent Seismic Radiation of Megathrust Earthquakes
Click here for abstract.

Deepankar Dangwal University of Oklahoma

DATE: February 1, 2022
TOPIC: Interferometric shallow reflectivity imaging and Vp/Vs estimation after polarization-based body wave preselection from passive seismic recording.
Click here for abstract.



Manuel Florez Torres from Caltech seismo Lab

DATE: December 1, 2021
TOPIC: Source Spectral Properties of Earthquakes in the Yellowstone Caldera
Click here for abstract.

Angela Gao Caltech CMS

DATE: November 10, 2021
TOPIC: Deep Expectation Maximization for Joint Source-Structure Inversion
Click here for abstract.

Saeko Kita (GRIPS)

DATE: October 27, 2021
TOPIC: Episodic tremor, slow slip, and in-slab seismicity on the Kii Peninsula, Japan
Click here for abstract.



Lei Qin USC

DATE: November 20, 2019
TOPIC: Monitoring crustal properties in the top ~100 m, using seismic, meteorological, oceanic and pore pressure data
Click here for abstract.

Michael Bianco UC San Diego

DATE: November 13, 2019
TOPIC: Machine learning in geophysical tomography: review and prospects

**Special Day, Monday, November 11, 2019**

Ceri Nunn JPL

DATE: November 11, 2019
TOPIC: Standing on the shoulders of Apollo: Past and Future Lunar Seismology
Click here for abstract.


DATE:October 16, 2019
TOPIC: Does a damaged-fault zone mitigate the near-field ground
motion?—Lessons from the 2018 M 7.5 Palu earthquake
Click here for abstract.

Scott DeWolf Clemson

DATE: September 24, 2019
TOPIC: Designs and Performance of New Optical Fiber Tilt and Strain Instruments

Alex Webb University of Hong Kong

DATE: September 18, 2019
TOPIC: From mantle to biosphere, Himalayan duplexing in a new framework
Click here for abstract.

**Special Seminar **


DATE: Wednesday,August 28, 2019 (12:00pm)
TOPIC: Quantitative Evaluation of Compositional Origins of Ultralow Velocity Zones

**Special day Friday, June 21, 2019**

Min Chen Michigan State University

DATE: June 21, 2019
TOPIC: Lithospheric foundering and underthrusting imaged beneath Tibet

**Special time 11:00am - 12:00pm**

Felix Rodriguez Cardozo Universidad Nacional Autonoma Mexico

DATE: March 13, 2019
TOPIC: The Bárðarbunga volcano cyclic behavior, observed through seismic moment tensor inversions

Nader Shakibay Senobari UC Riverside

DATE: January 16, 2019
TOPIC: Advances in earthquake similarity search: mining large seismic data sets from central and northern California
Click here for abstract.



**Special Day and Time-Thursday, December 6 at 1:00pm**

Wu Wei Nanyang technological University

DATE: December 6, 2018
TOPIC: Laboratory investigation of injection-induced seismicity

**Special Day-Monday, December 3**

Qiu, Hongrui USC

DATE: December 3, 2018
TOPIC: Multi-scale imaging and monitoring fault zones in Southern California abd the surrounding structures in the upper crust

**Special Day-Monday, November 26**

Erdal Safak Bogazici University,Turkey

DATE: November 26, 2018
TOPIC: Earthquake Early Warning system for Istanbul, and changing needs of engineers for seismic design

Jiashun Hu Caltech

DATE: November 14, 2018
TOPIC: Slab Subduction and Craton Evolution in South American -- Implications From Data-oriented Geodynamic Models

Robert Graves and SusAn Hough USGS

DATE: October 31, 2018
TOPIC: The 1933 Long Beach Earthquake: Ground Motions and Rupture Scenario

**Special Day-Monday, October 22-Two Talks**

Pawan Bharadwaj MIT

DATE: October 22, 2018
TOPIC: Focused Blind Deconvolution of Seismic Signals
Click here for abstract.

Mukuhira Yusuke Tohoku University

DATE: October 22, 2018
TOPIC: Dependency of the injection induced seismicity b-value on the stress state of existing fractures 
Click here for abstract.

**Special Day-Thursday, October 18**

Hayashi, Koichi Geometrics/OYO Corporation, San Jose, CA

DATE: October 18, 2018
TOPIC: Use of web-base database to reduce uncertainty associated with geophysical investigations
Click here for abstract.

Kyungjae Im Penn State

DATE: September 19, 2018
TOPIC: Permeability evolution during the seismic cycle

**Special Seminar **

VURP STUDENTS (Shengxing zhang, Shi Wang, and Junhao Song)

DATE: Wednesday, September 5, 2018 (11:45am)
TOPIC: Various

HIROYUKI NODA (Kyoto University)

DATE: August 29, 2018
TOPIC: Dynamic earthquake sequence simulation of a fault in a Maxwell-viscoelastic medium: Does viscous flow promote slow earthquakes?

Brandon Schmandt University of New Mexico

DATE: August 1, 2018
TOPIC: Seismically anisotropic magma reservoirs underlying silicic calderas
Click here for abstract.

Chunquan Yu Caltech

DATE: June 20, 2018
TOPIC: Depth determination of the 2010 El Mayor-Cucapah earthquake sequence

Xin Wang Nanyang TechnologicalUniversity Singapore

DATE: June 13, 2018
TOPIC: A preliminary community shear-wave seismic velocity model of Mynamar

Victor Tsai Caltech

DATE: May 30, 2018
TOPIC: The melting of glaciers

**Special Day- Monday, March 12, 2018**

Sylvain Michel University of Cambridge

DATE: May, 2, 2018
TOPIC:Interseismic coupling and Slow Slip Events on the Cascadia megathrust, Implication for Seismic Hazard and SSE dynamics

Miguel Gonzalez-Herraez Universidad de Alcala, Spain

DATE: March 12, 2018
TOPIC: Distributed Acoustic Sensing (DAS): principles, limitations and novel techniques

Quentin Brissaud CALTECH

DATE: February 14, 2018
TOPIC: Development of a numerical method for wave propagation in a coupled fluid/solid medium to study seismic events and explosions

**Special Day/Time Monday, February 5, 2018 from 11:00am-12:00pm**

Gary Glesener Virginia Tech

DATE: February 5, 2018
TOPIC:The value of teaching with physical analog models

**Special Day- Monday, January 29, 2018**

Lina Yamaya University of Tokyo

DATE: January 29, 2018
TOPIC: Changes in the 3-D S-velocity structure of the D" region beneath Central America and the Caribbean inferred by waveform inversion after redetermination of the source parameters

Alex Schubnel CNRS Laboratoire de Geologie de L'ENS (Ecole Normale Superieure)

DATE: January 24, 2018
TOPIC: Rupture processes during laboratory earthquakes



**Special time 11:00am-12-00pm**

Jerome Neufeld University of Cambridge

DATE: November 15, 2017
TOPIC: Rapid supraglacial lake drainage: the poroelastic response of subglacial sediments

Martin Karrenbach Optasense LTD

DATE: October 11, 2017
TOPIC: An Overview of Distributed Acoustic Sensing Applications

Sue Hough USGS

DATE: September 27, 2017
TOPIC: Seismic moment release in California: missing recent earthquakes or overestimated past earthquakes?

Mitsuyuki Hoshiba Japan meteorlogical Agency

DATE: September 20, 2017
TOPIC: 'Ten years’ experience of nationwide Earthquake Early Warning in Japan'

**Special Seminar **

VURP and surf STUDENTS (Yida li, Fan, Wu, Tyler Perez, and Timothy Liu)

DATE: August 23, 2017
TOPIC: Various

**Special Day Monday, July 17 at 12:00pm**

Anne Davaille Universite Paris-Sud

DATE: July 17, 2017
TOPIC: Exploring the Morphology of the Earth oceanic ridges and Venus rifting with laboratory experiments using colloidal dispersions

Sylvain barbot Earth Observatory of Singapore

DATE: May 31, 2017
TOPIC: From Fault to Full Lithosphere Dynamics Modeling

Sue Hough USGS

DATE: May 17, 2017
TOPIC: A half-century of induced earthquakes in the Los Angeles Basin?

Alex Robel Caltech

DATE: May 3, 2017
TOPIC: Towards a Theory of Deglacial Meltwater Pulses: Understanding the Timing and Magnitude of Past Jumps in Sea Level

Heresh Fattahi Caltech

DATE: April 26, 2017
TOPIC: InSAR time-series estimation of the ionospheric phase delay    

Zachary Ross Caltech

DATE: April 12, 2017
TOPIC: Using GPU clusters to detect millions of small earthquakes in southern California with template matching

Men-Andrin meier Caltech

DATE: April 5, 2017
TOPIC: How 'good' are real-time ground motion predictions from earthquake early warning systems?

Giovanni occhipinti aka NINTO- Universite Denis Diderot

DATE: March 15, 2017
TOPIC: No Magnituse, No Glory: The recent history of Ionspheric Seismology from Sumatra 2004 to Chile 2015 through the revolutionary observations of Tohoku-Oki 2011

Kangchen bai Caltech

DATE: March 08, 2017
TOPIC: Seismogenic zone depth control on the likelihood of fault stepover jumps

Han Yue Caltech

DATE: February 1, 2017
TOPIC: Artifacts in back-projection images from water reverberation phases

Rachel Morrison Caltech

DATE: January 25, 2017
TOPIC: Equations of state of Fe-Ni and Fe-Ni-Si alloys at extreme pressure

Han Yue Caltech

DATE: January 11, 2017
TOPIC: 2016 Mw 7.1 Kumamoto Earthquake Sequence: how the rupture starts and stops


Lucas Pimienta ENS Paris

DATE: December 7, 2016
TOPIC: Effect of fluids on the elastic properties of sedimentary rocks

AGU Caltech

DATE: November 30, 2016


DATE: November 23, 2016
TOPIC: Higher-order cross-correlations (C3) to image the Earth from the crust to the core

Kenny Buyco Caltech

DATE: November 16, 2016
TOPIC: How Engineers Design Tall Buildings in Earthquake-Prone Areas: Performance-Based Seismic Design

Ryan Witkosky Caltech

DATE: November 2, 2016
TOPIC: Thermal hyoersoectral airborne imaging of active faults in southern California

**Special Day Tuesday**
Korea Meteorological Administration

DATE: November 1, 2016

**Special Day Thursday, OCTOBER 27, 2016
Qingkai Kong UC Berkeley

DATE: October 27, 2016
TOPIC: New seismic data from MyShake smartphone seismic network

Jack Muir Caltech

DATE: October 26, 2016


david Bercovici YALE

DATE: October 19, 2016
TOPIC: Trembling and (maybe) choking in volcanic eruptions

Emma hill Earth Observatory Singapore

DATE: October 4, 2016
TOPIC: Recent work on the Mentawai patch of the Sumatra subduction zone

VURP STUDENTS (Zeyu Jin, zhi Li,Weiyi LIU, and Yaoyi Wang)

DATE: September 7, 2016

yanbin Wang

DATE: August 3, 2016
TOPIC: Seismogenic faulting in mantle transition zone – a laboratory perspective

Shengji wei

DATE: July 5, 2016
TOPIC: Refining fault geometry with broadband waveform modelling for medium size earthquakes

S. Mehran Hosseini USC

DATE: June 29, 2016
TOPIC: A probabilistic approach to injection-induced seismicity assessment for different reservoir types and pressure-diffusion models

Shunta Noda USGS Menlo Park

DATE: May 25, 2016
TOPIC: Self-similar and deterministic properties of earthquake rupture – New insight and its application to early warning

Daniel Bowden

DATE: April 27, 2016
TOPIC: Rayleigh Wave Site Amplifications - from Long Beach to USArray, and the connection to engineering hazards

Chris Rollins

DATE: March 16, 2016
TOPIC: Loading rates on thrust faults beneath Los Angeles: towards a geodesy-based picture incorporating the effects of sedimentary basins

**Special Day Tuesday, February 2, 2016**
Ting Yang

DATE: February 2, 2016
TOPIC: Dynamic topography and the role of lateral viscosity variations from inversion of global mantle flow

Semechah lui

DATE: January 27, 2016
TOPIC: Rapid assessment of earthquake source characteristics and rupture properties

Raul Castro

DATE: January 13, 2016
TOPIC: Delayed Dynamic Triggered Seismicity in Northern Baja California, Mexico Caused by Large and Remote Earthquakes