Publications

Low-Frequency Earthquakes Downdip of Deep Slow Slip Beneath the North Island of New Zealand

We report the first catalog of low-frequency earthquakes in the Hikurangi subduction zone, located beneath the Kaimanawa Range of the …
Florent Aden-Antoniow, William B. Frank, Calum J. Chamberlain, John Townend, Laura M. Wallace, Stephen Bannister
DOI

Deep learning detects uncataloged low-frequency earthquakes across regions

Documenting the interplay between slow deformation and seismic ruptures is essential to understand the physics of earthquakes …
Jannes Münchmeyer, Sophie Giffard-Roisin, Marielle Malfante, William B. Frank, Piero Poli, David Marsan, Anne Socquet
DOI

Untangling the environmental and tectonic drivers of the Noto earthquake swarm in Japan

The underlying mechanism of the ongoing seismic swarm in the Noto Peninsula, Japan, which generates earthquakes at 10 times the average …
Qingyu Wang, Xin Cui, William B. Frank, Yang Lu, Takashi Hirose, Kazushige Obara
DOI

BPMF: A backprojection and matched-filtering workflow for automated earthquake detection and location

We introduce BPMF (backprojection and matched filtering)—a complete and fully automated workflow designed for earthquake detection and …
Eric Beaucé, William B. Frank, Leonard S. Seydoux, Piero Poli, Robert D van der Hilst, Michel Campillo
DOI

Along-strike segmentation of seismic tremor and its relationship with the hydraulic structure of the subduction fault zone

Along the strike of subduction zones, tectonic tremor episodicity is segmented on a geologic scale. Here, we study how this …
Gaspard Farge, Claude Jaupart, William B. Frank, Nikolaï M Shapiro
DOI

Imaging the Spatiotemporal Evolution of Plate Coupling With Interferometric Radar (InSAR) in the Hikurangi Subduction Zone

The coupling at the interface between tectonic plates is a key geophysical parameter to capture the frictional locking across plate …
Louise Maubant, William B. Frank, Laura M. Wallace, Charles A. Williams, Ian Hamling
DOI

What makes low-frequency earthquakes low frequency

Low-frequency earthquakes, atypical seismic events distinct from regular earthquakes, occur downdip of the seismogenic megathrust where …
Qingyu Wang, William B. Frank, Rachel E. Abercrombie, Kazushige Obara, Aitaro Kato
DOI

Subdaily slow fault slip dynamics captured by low-frequency earthquakes

Geodetic positioning is the geophysical record of reference for slow slip events, but typical daily solutions limit studies of the …
DOI

Capturing seismic velocity changes in receiver functions with optimal transport

Temporal changes in seismic velocities are an important tool for tracking structural changes within the crust during transient …
Jared Bryan, William B. Frank, Pascal Audet
DOI

In-situ monitoring of rock slope destabilization with ambient seismic noise interferometry in southwest China

The damage evolving on rock slopes, including unstable mass failure events, is expected to be associated with a rigidity loss of …
Fan Xie, Eric Larose, Qingyu Wang, Yuxiang Zhang
DOI

Optimal Stacking of Noise Cross-Correlation Functions

Cross-correlations of ambient seismic noise are widely used for seismic velocity imaging, monitoring, and ground motion analyses. A …
Xiaotao Yang, Jared Bryan, Kurama Okubo, Chengxin Jiang, Timothy Clements, Marine Denolle
DOI

Numerical comparison of time-, frequency- and wavelet-domain methods for coda wave interferometry

Temporal changes in subsurface properties, such as seismic wave speeds, can be monitored by measuring phase shifts in the coda of two …
Congcong Yuan, Jared Bryan, Marine Denolle
DOI

A recursive matched-filter to systematically explore a volcanic long-period earthquake swarm

The matched-filter technique is an effective way to detect repeats, or near-repeats, of a seismic source, but prior identification of …
DOI

Interseismic coupling along the Mexican subduction zone seen by InSAR and GNSS

Louise Maubant, Mathilde Radiguet, Erwan Pathier, Marie-Pierre Doin, Nathalie Cotte, Ekaterina Kazachkina, Vladimir Kostoglodov
DOI

Crustal structure across the West Antarctic rift system from multicomponent ambient noise surface wave tomography

Approximately 2 yr (2010–2011) of continuous seismic records from a subset of the Antarctic component of the Polar Earth Observing …
Thomas Dylan Mikesell, Aurélien Mordret, Zongbo Xu, William B. Frank
DOI

Tracking the Spatio-Temporal Evolution of Foreshocks Preceding the Mw 6.1 2009 L’Aquila Earthquake

How faulting processes lead to a large earthquake is a fundamental question in seismology. To better constrain this pre-seismic stage, …
Leoncio Cabrera, Piero Poli, William B. Frank
DOI

An adaptable random forest model for the declustering of earthquake catalogs

Earthquake catalogs are essential to analyze the evolution of active fault systems. The background seismicity rate, or rate of …
DOI

Crust and upper-mantle seismic anisotropy variations from the coast to inland in central and Southern Mexico (2): Correlations with Tectonic Tremor

Seismic anisotropy in the flat slab region of Mexico is compared with tectonic tremor activity. The anisotropy is observed in three …
Allen Husker, Jorge C Castellanos, Xyoli Pérez-Campos, Raúl W Valenzuela, William B. Frank
DOI

Illuminating the Pre-, Co-, and Post-Seismic Phases of the 2016 M7.8 Kaikōura Earthquake With 10 Years of Seismicity

The 2016 M7.8 Kaikōura earthquake is one of the most complex earthquakes in recorded history, with significant rupture of at least 21 …
Calum J Chamberlain, William B. Frank, Federica Lanza, John Townend, Emily Warren-Smith
DOI

Moment-duration scaling of low-frequency earthquakes in Guerrero, Mexico

Low-frequency earthquakes (LFEs) are detected within tremor, as small, repetitive, impulsive low-frequency (1–8 Hz) signals. …
Gaspard Farge, Nikolaï M Shapiro, William B. Frank
DOI

Independent component analysis and parametric approach for source separation in InSAR time series at regional scale: application to the 2017--2018 Slow Slip Event in Guerrero (Mexico)

Louise Maubant, Erwan Pathier, Simon Daout, Mathilde Radiguet, Marie-Pierre Doin, Nathalie Cotte, Ekaterina Kazachkina, Vladimir Kostoglodov
DOI

Statistical evidence of a seismic quiescence before the M$_w$8.1 Iquique earthquake, Chile

The 2014 Iquique seismic crisis in Chile, culminating with a $M_w$ 8.1 earthquake on 1 April, highlights a complex unlocking of the …
Florent Aden-Antoniow, Claudio Satriano, Pascal Bernard, Natalia Poiata, El Madani Aissaoui, Jean-Pierre Villotte, William B. Frank
DOI

The transient and intermittent nature of slow slip

To first order, faults are locked while stress builds up to a devastating earthquake. However, we know that faults also slip slowly. …
Romain Jolivet, William B. Frank
DOI

The Community Code Verification Exercise for Simulating Sequences of Earthquakes and Aseismic Slip (SEAS)

Numerical simulations of sequences of earthquakes and aseismic slip (SEAS) have made great progress over past decades to address …
Brittany A. Erickson, Junle Jiang, Michael Barall, Nadia Lapusta, Eric M. Dunham, Ruth Harris, Lauren S. Abrahams, Kali L. Allison, Jean-Paul Ampuero, Sylvain Barbot, Camilla Cattania, Ahmed Elbanna, Yuri Fialko, Benjamin Idini, Jeremy E. Kozdon, Valère Lambert, Yajing Liu, Yingdi Luo, Xiao Ma, Maricela Best McKay, Paul Segall, Pengcheng Shi, Martijn van den Ende, Meng Wei
DOI

Systematic Detection of Clustered Seismicity Beneath the Southwestern Alps

We present a new automated earthquake detection and location method based on beamforming (or back projection) and template matching and …
Eric Beaucé, William B. Frank, Anne Paul, Michel Campillo, Robert D van der Hilst
DOI

Daily measurement of slow slip from low-frequency earthquakes is consistent with ordinary earthquake scaling

Slow slip transients on faults can last from seconds to months and stitch together the earthquake cycle. However, no single geophysical …
William B. Frank, Emily E Brodsky
DOI

Isolated Triggered Tremor Spots in South America: Southern Chile, Ecuador, and Central Colombia

We report new observations of triggered tectonic tremor in three regions in South America along the plate boundary between the Nazca …
Kevin Chao, Zhigang Peng, William B. Frank, Germán A Prieto, Kazushige Obara
DOI

Updip and along-strike aftershock migration model driven by afterslip: application to the 2011 Tohoku-Oki aftershock sequence

We present an analytical model based on the idea that afterslip drives seismicity: aftershocks occur when a given level of afterslip is …
Hugo Perfettini, William B. Frank, David Marsan, Michel Bouchon
DOI

Improving Physics-Based Aftershock Forecasts during the 2016– 2017 Central Italy Earthquake Cascade

The 2016– 2017 Central Apennines earthquake sequence is a recent example of how damages from subsequent aftershocks can exceed those …
S. Mancini, M. Segou, M. J. Werner, C. Cattania
DOI

Crack Models of Repeating Earthquakes Predict Observed Moment-Recurrence Scaling

Small repeating earthquakes are thought to represent rupture of isolated asperities loaded by surrounding creep. The observed scaling …
Camilla Cattania, Paul Segall
DOI

Complex Earthquake Sequences on Simple Faults

While power law distributions in seismic moment and interevent times are ubiquitous in regional earthquake catalogs, the statistics of …
Camilla Cattania
DOI

Characteristic tectonic tremor activity observed over multiple slow slip cycles in the Mexican subduction zone

We develop a single-station tremor spectrum template detection method that we applied to continuous seismic data recorded by the …
Allen L Husker, William B. Frank, Guillermo Gonzales, Leticia Avila, Vladimir Kostoglodov, Ekaterina Kazachkina
DOI

The Forecasting Skill of Physics-based Seismicity Models during the 2010–2012 Canterbury, New Zealand, Earthquake Sequence

The static coulomb stress hypothesis is a widely known physical mechanism for earthquake triggering and thus a prime candidate for …
Camilla Cattania, Maximilian J. Werner, Warner Marzocchi, Sebastian Hainzl, David Rhoades, Matthew Gerstenberger, Maria Liukis, William Savran, Annemarie Christophersen, Agnès Helmstetter, Abigail Jimenez, Sandy Steacy, Thomas H. Jordan
DOI

Revealing the cluster of slow transients behind a large slow slip event

Capable of reaching similar magnitudes to large megathrust earthquakes [$M_w$ (moment magnitude) $>$ 7], slow slip events play a …
William B. Frank, Baptiste Rousset, Cécile Lasserre, Michel Campillo
DOI

Progressive reactivation of the volcanic plumbing system beneath Tolbachik volcano (Kamchatka, Russia) revealed by long-period seismicity

After lying dormant for 36 yr, the Tolbachik volcano of the Klyuchevskoy group started to erupt on 27 November 2012. We investigate the …
William B. Frank, Nikolaï M Shapiro, Alexander A Gusev
DOI

A model for migration of aftershocks driven by afterslip

Aftershocks region have been extensively reported to expand logarithmically with time. The associated migration velocity is typically …
Hugo Perfettini, William B. Frank, David Marsan, Michel Bouchon
DOI

Adapting the matched-filter search to a wide-aperture network: an aftershock sequence and an earthquake swarm in Connecticut

We adapt matched-filter searching to a region of sparse stations and seismicity, and demonstrate that earthquake detection can be …
DOI

Fast matched-filter (FMF): an efficient seismic matched-filter search for both CPU and GPU architectures

Matched-filter searches are an important tool in modern seismology to detect seismic events. They operate via an algorithm that …
Eric Beaucé, William B. Frank, Alexey Romanenko
Code DOI

Imbricated slip rate processes during slow slip transients imaged by low-frequency earthquakes

Low Frequency Earthquakes (LFEs) often occur in conjunction with transient strain episodes, or Slow Slip Events (SSEs), in subduction …
Olivier, Lengliné, William B. Frank, David Marsan, Jean-Paul Ampuero
DOI

A geodetic matched-filter search for slow slip with application to the Mexico subduction zone

Since the discovery of slow slip events, many methods have been successfully applied to model obvious transient events in geodetic time …
Baptiste Rousset, Michel Campillo, Cécile Lasserre, William B. Frank, Nathalie Cotte, Andrea Walpersdorf, Anne Socquet, Vladimir Kostoglodov
DOI

Mapping the rheology of the Central Chile subduction zone with aftershocks

The postseismic deformation following a large ($M_w >$ 7) earthquake is expressed both seismically and aseismically. Recent studies …
William B. Frank, Piero Poli, Hugo Perfettini
DOI

Dynamic Triggering and Earthquake Swarms on East Pacific Rise Transform Faults

While dynamic earthquake triggering has been reported in several continental settings, offshore observations are rare. Oceanic …
Camilla Cattania, Jeffrey J. McGuire, John A. Collins
DOI

Connecting Crustal Seismicity and Earthquake-Driven Stress Evolution in Southern California

Tectonic stress in the crust evolves during a seismic cycle, with slow stress accumulation over interseismic periods, episodic stress …
Fred F. Pollitz, Camilla Cattania
DOI

A Nonplanar Slow Rupture Episode during the 2000 Miyakejima Dike Intrusion

Magmatic intrusions release extensional strain in the Earth’s crust upon availability of magma. Intrusions are typically …
Camilla Cattania, Eleonora Rivalta, Sebastian Hainzl, Luigi Passarelli, Yosuke Aoki
DOI

Slow slip hidden in the noise: the intermittence of tectonic release

Referred to as slow slip events, the transient aseismic slip that occurs along plate boundaries can be indirectly characterized through …
DOI

Repeating seismicity in the shallow crust modulated by transient stress perturbations

Recent studies have reported seismic phenomena that are modulated by small stress perturbations ($∼$ 10 kPa), revealing their …
William B. Frank, Nikolaï M Shapiro, Allen L Husker, Vladimir Kostoglodov, Michel Campillo
DOI

The evolving interaction of low-frequency earthquakes during transient slip

Observed along the roots of seismogenic faults where the locked interface transitions to a stably sliding one, low-frequency …
William B. Frank, Nikolaï M Shapiro, Allen L Husker, Vladimir Kostoglodov, Alexander A Gusev, Michel Campillo
DOI

A Parallel Code to Calculate Rate-State Seismicity Evolution Induced by Time Dependent, Heterogeneous Coulomb Stress Changes

The estimation of space and time-dependent earthquake probabilities, including aftershock sequences, has received increased attention …
C. Cattania, F. Khalid
DOI

Spatial-temporal variation of low-frequency earthquake bursts near Parkfield, California

Tectonic tremor (TT) and low-frequency earthquakes (LFEs) have been found in the deeper crust of various tectonic environments globally …
Chunquan Wu, Robert A Guyer, David R Shelly, Daniel Trugman, William B. Frank, Joan Gomberg, Paul A Johnson
DOI

Uncovering the geodetic signature of silent slip through repeating earthquakes

Slow transient slip that releases stress along the deep roots of plate interfaces is most often observed on regional GPS networks …
William B. Frank, Mathilde Radiguet, Baptiste Rousset, Nikolaï M Shapiro, Allen L Husker, Vladimir Kostoglodov, Nathalie Cotte, Michel Campillo
DOI

Along-fault pore-pressure evolution during a slow-slip event in Guerrero, Mexico

Slow earthquakes are important constituents of the seismic cycle and are involved in the stress transfer between the viscously slipping …
William B. Frank, Nikolaï M Shapiro, Allen L Husker, Vladimir Kostoglodov, Harsha S Bhat, Michel Campillo
DOI

Using systematically characterized low-frequency earthquakes as a fault probe in Guerrero, Mexico

Studies of low-frequency earthquakes (LFEs) have focused on detecting events within previously identified tectonic tremor. However, the …
William B. Frank, Nikolaï M Shapiro, Allen L Husker, Vladimir Kostoglodov, Alexey Romanenko, Michel Campillo
DOI

Automatic detection of low-frequency earthquakes (LFEs) based on a beamformed network response

Low-frequency earthquakes (LFEs), which frequently originate from multiplet-generating sources that are closely linked with tectonic …
William B. Frank, Nikolaï M Shapiro
DOI

The Relationship between Afterslip and Aftershocks: A Study Based on Coulomb-Rate-and-State Models

The spatiotemporal clustering of earthquakes is a feature of medium- and short-term seismicity, indicating that earthquakes interact. …
Camilla Cattania, Sebastian Hainzl, Frank Roth, Lifeng Wang
DOI

Propagation of Coulomb Stress Uncertainties in Physics-Based Aftershock Models

Stress transfer between earthquakes is recognized as a fundamental mechanism governing aftershock sequences. A common approach to …
Camilla Cattania, Sebastian Hainzl, Lifeng Wang, Frank Roth, Bogdan Enescu
DOI

Low-frequency earthquakes in the Mexican Sweet Spot

We use data from the Meso-America Subduction Experiment to detect and locate low-frequency earthquakes (LFEs) in the Mexican subduction …
William B. Frank, Nikolaï M Shapiro, Vladimir Kostoglodov, Allen L Husker, Michel Campillo, Juan S Payero, Germán A Prieto
DOI

Testing Atmospheric and Tidal Earthquake Triggering at Mt. Hochstaufen, Germany

Seismicity closely related to hydrological impacts has been observed in several locations worldwide, particularly in intraplate areas …
S Hainzl, Y Ben-Zion, C Cattania, J Wassermann
DOI