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

Seminars

Past Brown Bag Seminars

2017

**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

2016

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
TOPIC: TBD

Zack Spica STANFORD

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
TOPIC: TBD

**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
TOPIC: TBD

**SPECIAL BROWN BAG TODAY, OCTOBER 4**

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
TOPIC: TBD

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

2015

**Special Day Tuesday, December 1, 2015**
Rachel morrison

DATE: December 1, 2015
TOPIC: A high-precision iron-nickel equation of state

Lingling ye

DATE: December 2, 2015
TOPIC: Large Deep Earthquakes

**Special Day Monday, December 21, 2015**

Miao Zhang USTC

DATE: December 21, 2015
TOPIC: An effective method for small event detection and its applications

**Special Day Tuesday, November 17, 2015**
Natalia Solomatova

DATE: November 17, 2015
TOPIC: Equation of state and spin crossover (Mg,Fe)O at high pressure

Men-adrin Meier

DATE: November 4, 2015
TOPIC: Evidence for and Implications of a Transition from Crack-like to Pulse-like Rupture at M4-5"

maxime farin

DATE: October 28, 2015
TOPIC: Experimental study of granular flows dynamics and associated seismic signal

hiroyuki Noda Jamstec

DATE: October 14, 2015
TOPIC: Dynamic earthquake sequence simulations with a microphysically based rate- and state-dependent friction law incorporating pressure solution creep

**Special Day Tuesday, July 21, 2015**
James boles (ucsb)

DATE: July 21, 2015
TOPIC: Fault-related Mantle Helium, Los Angeles Basin, California

Paul Young (University of toronto)

DATE: July 22, 2015
TOPIC: Laboratory studies of induced seismicity and earthquake scaling

Justin Ko (Caltech)

DATE: June 24, 2015
TOPIC: Seismic Evidence for the Depression of D" Discontinuity beneath the Caribbean

**Special Day- Thursday**

Susan Hough (Caltech)

DATE: June 11, 2015
TOPIC: Ground motion and damage from the 2015 Gorkha, Nepal earthquake: the M7.8 dog that didn't bite.

Dirk Smit (Shell Oil Company)

DATE: May 20, 2015
TOPIC: A Lower Carbon - Higher Energy Future. Some Challenges to Industry, Academia, Society.

Bryan riel (Caltech)

DATE: May 13, 2015
TOPIC: The collapse of Bardarbunga Caldera, Iceland

Lars Stixrude (University College London)

DATE: May 6, 2015
TOPIC: Molten Earth: Silicate Melt in Deep Interior

Brent Minchew (Caltech)

DATE: April 15, 2015
TOPIC: Glacier flow over deformable beds

Vishagan Ratnaswamy (Caltech)

DATE: March 11, 2015
TOPIC:Mantle Flow Models Constrained by Plate Motion: A Linear Bayesian Inverse Uncertainty Quantification Problem

**Special Time** 2:00 - 3:00pm Tuesday

Yihe huang (Stanford)

DATE: March 3, 2015
TOPIC:Detecting induced seismicity and its magnitude-frequency distribution

Susan Hough (USGS)

DATE: February 25, 2015
TOPIC: A Century of Induced Earthquakes in Oklahoma

Dunzhu Li (Caltech)

DATE: February 18, 2015
TOPIC: Adjoint method in mantle convection

Asaf Inbal (Caltech)

DATE: February 11, 2015
TOPIC: A Inference of deep creep on the San-Jacinto Fault near Anza, CA, from joint analysis of strain and aftershock data

**Special Seminar**

wenhui yu (China University of geosciences)

DATE: February 6, 2015
TOPIC: A Rheology of Outer Core

pierre dublanchet (ETH Zurich)

DATE: February 4, 2015
TOPIC: Mechanical environment of a complex multiplet

**Special Seminar**
Oliver Tschauner (University of Nevada, Las vegas)

DATE: Tuesday, January 27, 2015
TOPIC: What does natural bridgmanite tell us about the lower mantle?

Claudia Roosli (ETH Zurich)

DATE: January 14, 2015
TOPIC: Stick-slip motion and moulin tremor observed with seismic measurements on the Greenland Ice Sheet

Ting Yang (Caltech)

DATE: January 7, 2015
TOPIC:A slab avalanche event beneath Sundaland since the Early Miocene

2014

Sebastien Allgeyer (ANU)

DATE: December 10, 2014
TOPIC: Numerical Tsunami Simulation Including Elastic Loading and Sea Water Density Stratification

daniel bowden (Caltech)

DATE: December 3, 2014
TOPIC: Amplitudes in Ambient Noise: Amplification, attenuation, and scattering in Long Beach

Hilary Martens (Caltech)

DATE: November 5, 2014
TOPIC: Using ocean tidal load response to explore the elastic structure of the Amazonian Craton

Ken Hudnut (USGS)

DATE: October 15, 2014
TOPIC: Fault surface rupture in the South Napa, CA earthquake (M 6.0)

Mark Brandon (Yale)

DATE: August 6, 2014
TOPIC: The Evolution of the Retro-Side of the Alpine Wedge, Switzerland, as Resolved by Structural Thermochronology

Susan Hough (USGS)

DATE: July 23, 2014
TOPIC: On the dependence of ground motions on stress drop: implications for induced earthquakes, earthquake early warning, and seismic hazards

Semechah Lui (Caltech)

DATE: June 4, 2014
TOPIC: Effect of postseismic creep on earthquake triggering

Gene Humphreys (University of Oregon)

***SPECIAL DAY: Tuesday, June 3, 2014***
DATE: June 3, 2014
TOPIC: Slab Flattening and Foundering in the Extreme: The young growth of a craton and Flood Basalt excitation below the Western U.S.

Junle Jiang (Caltech)

DATE: May 28, 2014
TOPIC: Coseismic seafloor deformation of 2011 Tohoku-oki earthquake inferred from near-field tsunami records

Gregor Hillers (ISTerre)

DATE: May 29, 2014
TOPIC: Fault zone trapped noise and fault zone reverberations

Bryan riel (Caltech)

DATE: May 21, 2014
TOPIC: Detecting and modeling transient deformation signals in geodetic time series

Stephen Perry (Caltech)

DATE: May 14, 2014
TOPIC: Towards Reconciling Magnitude-Invariant Stress Drops with Dynamic weakening

Yiran Ma (Caltech)

DATE: May 7, 2014
TOPIC: The crust and uppermost mantle structure of Southern Peru

Sarah Stewart (Harvard)

DATE: May 1, 2014
TOPIC: Shock Vaporization of Iron: Implications for the Origin of the Late Veneer

Ray Wells (USGS)

DATE: April 9, 2014 at 4:00pm
TOPIC: Yellowstone Hotspot Transit Across Oregon

Sarah Minson (Caltech)

DATE: April 2, 2014
TOPIC: Diverse approaches to earthquake early warning: A talk in three acts

Ming Hei Cheng (Caltech)

***SPECIAL DAY: Monday, March 31, 2014***
DATE: March 31, 2014
TOPIC: New Applications That Come From Extending Seismic Networks into Buildings

Shengji Wei (Caltech)

DATE: March 19, 2014
TOPIC: Cut-and-Paste the broadband seismograms for earthquakes in real velocity structure

Brent Minchew (Caltech)

DATE: March 5, 2014
TOPIC: Basal mechanics of Icelandic ice caps

Chris Rollins (Caltech)

DATE: February 26, 2014
TOPIC: Mechanisms of Postseismic Deformation Following the 2010 El Mayor-Cucapah Earthquake

Romain Jolivet (Caltech)

***SPECIAL DAY: Thursday, February 20, 2014***
TOPIC: A Bayesian exploration of creep along the Central San Andreas Fault from InSAR and GPS data

Olafur Gudmundsson (Uppsala University)

DATE: January 23, 2014
TOPIC: Some thoughts about refinements of event locations in an earthquake catalog

2013

pierre Dublanchet(IPGP, France)

DATE:December 18, 2013
TOPIC: Effective Behavior of a heterogeneous rate-and-state interface

Weitao Wang (CEA-IGP)

DATE:December 4, 2013
TOPIC: Irregular Signals caused by non-uniform noise source in NCF observed in South west China

Men-Andrin Meir (ETHZ)

DATE: November 20, 2013
TOPIC: Can Earthquake Early Warning be fast enough for Northridge-type events?

Surendra Adhikari (Caltech)

DATE: November 27, 2013
TOPIC: Future evolution of the Antarctic bed topography and its implications for ice sheet dynamics

Susan Hough (USGS)

DATE: November 13, 2013
TOPIC: Anatomy of Earthquake Damage Distributions

Hilary Martens

DATE: September 18, 2013
TOPIC: Triggering of microearthquakes in Iceland by volatiles released from a dyke intrusio

Yihe Huang

DATE: August 29, 2013
TOPIC: Earthquake ruptures modulated by waves in damaged fault zones

Brandon Schmandt, UNM

DATE: July 17, 2013
TOPIC: Multiple fluvial processes detected by seismic and infrasound monitoring of a controlled flood in the Grand Canyon

Sara Dougherty

DATE: May 1, 2013
TOPIC: Seismic structure in central Mexico: Possible fragmentation of the subducted South Cocos plate

Jeffrey Thompson

DATE: April 24, 2013
TOPIC: Down the Drain: Viscoelastic Effects During Supraglacial Lake Drainage

Brent Minchew

DATE: April 17, 2013
TOPIC: Subglacial mechanics of Iceland ice caps: Inferences from surface velocity measurements and numerical models

Ravi Menon, UCSD

DATE: April 10, 2013
TOPIC: Applications of Random Matrix Theory in Ambient Noise Interferometry

Brendan Crowell, ucsd

DATE: March 27, 2013
TOPIC: Using GPS and Seismogeodetic Data for Earthquake Early Warning

Shiqing Xu, USC

Wednesday, March 20, 2013
TOPIC: Refined understanding of dynamic ruptures and off-fault yielding patterns, with applications to laboratory experiments and natural earthquakes

Yehuda Bock, UCSD

***SPECIAL DAY: Monday, March 18, 2013***
TOPIC: Prototype Earthquake, Atmospheric and Structural Early Warning System Using Seismogeodesy

Junle Jiang

DATE: March 13, 2013
TOPIC: Detecting the Depth Limit of Large Earthquakes using Microseismicity at Depth

Kenneth W. Hudnut, USGS, Pasadena

DATE: March 6, 2013
TOPIC: Real-Time GPS; system status and how to access streaming data

Thomas Ader

DATE: February 27, 2013
TOPIC: Step and frequency response of rate-and-state seismogenic faults to shear stress perturbations

Philip Skemer, Washington University in St. Louis

DATE: January 23, 2013
TOPIC: Deformation of the Upper Mantle: Experimental and Geological Perspectives

Kaiwen Xia, University of Toronto

***SPECIAL DAY:Tuesday, January 22, 2013***
TOPIC: Rock Dynamics Study Applied to Earthquake Physics

Fan-Chi Lin

DATE: January 16, 2013
TOPIC: Seismic interferometry and tomography: from surface to core

Sarah Minson, U.S. Geological Survey, Univ. of Washington

***SPECIAL DAY:Tuesday, January 15, 2013***
TOPIC: Real-Time Finite Fault Slip Models From High-Rate GPS

2012

Qi-fu Chen, Chinese Academy of Sciences, Beijing, China

DATE: December 12, 2012
TOPIC: Deep tectonic deformation of the Longmenshan Fault zone: Seismological Observation and Simulating interpretation

Hiroyuki Noda, IFREE, JAMSTEC, Japan

***SPECIAL DAY: December 13, 2012***
TOPIC: Earthquake sequence simulation of a multi-scale asperity model following rate and state friction - occurrence of large earthquakes by cascade up vs. own nucleation

Jan Harms, LIGO, Caltech

DATE: November 21, 2012
TOPIC: Measuring terrestrial gravity perturbations with gravitational-wave detectors

Wenzheng Yang

DATE: November 14, 2012
TOPIC: Tectonic Crustal Stress Field and Style of Faulting Along the Pacific North America Plate Boundary in Southern California

Dr. Wang, Institute of Care-life, China

***SPECIAL DATE & TIME: Tuesday, November 13, 2012 at 11:00 a.m.***
TOPIC: The development of earthquake early warning system in China since the Wenchuan earthquake

Gilead Wurman

DATE: October 10, 2012
TOPIC: Building an Earthquake Warning System from the Ground Up

Kevin Mayeda

***SPECIAL DAY: Thursday, July 26, 2012***
TOPIC: Ground Motion Prediction and Source Scaling Validation: A Test Using the Wells, Nevada Sequence

Georgia Cua

DATE: June 6, 2012
TOPIC: VS and EEW developments in Europe

Jeffrey Thompson

DATE: May 30, 2012
TOPIC: Transmission of Tidal Stresses in Ice Streams: Is the controlling process internal or external to the ice stream?

Francisco Ortega

DATE: May 23, 2012
TOPIC: Analysis of the Post-seismic Deformation of the Great 11 March 2011 Tohoku-Oki (Mw 9.0) Earthquake: Implications for Future Earthquake Occurrence

Lingsen Meng

DATE: May 9, 2012
TOPIC: Preliminary results of the recent Sumatra event

Zhongwen Zhan

DATE: May 2, 2012
TOPIC: Earthquakes with anomalously steep dip in the source region of the 2011 Tohoku-Oki earthquake and possible explanations

Junle Jiang

DATE: April 11, 2012
TOPIC: Long-term Seismic Behaviors of Faults with Heterogeneous Compressive Stress

Sara Dougherty

DATE: March 7, 2012
TOPIC: Seismic structure in central Mexico: Implications for fragmentation of the subducted Cocos plate

Lapo Boschi

DATE: February 22, 2012
TOPIC: Mediterranean tomography: dynamic topography, anisotropy, plate motion

Naveed Near-Ansari

DATE: February 15, 2012
TOPIC: CITerra/Fram Introduction and User Meeting

Susan Hough

DATE: January 4, 2012
TOPIC: Missing Great Earthquakes

2011

Essam Heggy

DATE: November 9, 2011
TOPIC: Exploring Fossil Aquifers Using Sounding Radar: Implication for Understanding Deserts Paleoclimate and Hydrological Cycle

Louis Moresi

DATE: October 12, 2011
TOPIC: Intuitive Numerical Modelling in Structural Geology and Tectonics

Danielle Sumy

DATE: September 28, 2011
TOPIC: The Mechanics of Earthquakes and Faulting in the southern Gulf of California

Christian Pelties

DATE: September 21, 2011
TOPIC: Modeling 3D dynamic rupture on complex fault systems with a high-order Discontinuous Galerkin method

Daoyuan Sun

DATE: August 17, 2011
TOPIC: Rolling Hills of Primordial Material on the Core-Mantle Boundary

Kara Matthews

DATE: August 11, 2011
TOPIC: The tectonic fabric of the ocean basins

Fan-Chi Lin

Wednesday, June 22, 2011, 12:00-1:00pm
TOPIC: Surface wave tomography with USArray

Caitlin Murphy

Wednesday, June 8, 2011, 12:00-1:00pm
TOPIC: The Measured Phonon Density of States of Iron to 1.7 Mbar, and what it tells us about Earth's Core

Kristin Phillips and Jeffrey Thompson

Wednesday, May 18, 2011, 12:00-1:00pm
TOPIC (Phillips): Structure of the Subduction System in Southern Peru from Seismic Array Data
TOPIC (Thompson): David versus Goliath: Exploring How Small Perturbations in Ocean Tides Influence the Motion of Massive Ice Streams

YoungHee Kim

Wednesday, April 13, 2011, 12:00-1:00pm
TOPIC: Distribution of hydrous minerals in the subducted Cocos oceanic crust, Mexico

Mark Simons

Wednesday, March 30, 2011, 12:00-1:00pm
TOPIC: March 11, 2011 Tohoku-oki Earthquake

Susan Hough

Wednesday, March 23, 2011, 12:00-1:00pm
TOPIC: Ground Motions in Port-au-Prince during the 12 January 2010 Earthquake: Forensic Analysis of a Dancing Battery Rack

Lingsen Meng

Wednesday, March 9, 2011, 12:00-1:00pm
TOPIC: High Resolution Array Processing for Earthquake Source Studies at Regional Distance

Michelle Selvans

Wednesday, February 23, 2011, 12:00-1:00pm
TOPIC: Deep Structure in Rifted Crust at the Ocean-Continent Margin in the Northwestern Ross Sea

Dongzhou Zhang

Wednesday, February 16, 2011, 12:00-1:00pm
TOPIC: Orthopyroxene: A Transitional View of the Phase Transition

Laura Alisic

Wednesday, February 9, 2011, 12:00-1:00pm
TOPIC: Slab Stress and Strain Rate as Constraints on Global Mantle Flow

Zhongwen Zhan

Wednesday, February 2, 2011, 12:00-1:00pm
TOPIC: Zhongwen's Chinese New Year Summary on Ambient Seismic Noise

2010

Bin Chen

Tuesday, December 7, 2011, 12:00-1:00pm
TOPIC: Synchrotron X-ray Spectoscopy and Microtomography for Studying Earth and Planetary Interiors