Webinar Schedule

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(e.g. “ETNA 2 Webinar“)

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A New Way Of Maximum Magnitude Estimate for Induced Seismicity – Chaos

A New Way Of Maximum Magnitude Estimate for Induced Seismicity – Chaos

Traffic Light Systems (TLS) for induced seismicity by underground injections traditionally rely on magnitude thresholds. The choice of these thresholds is debated and found inappropriate, with most recent 2020 fashion proposing very low thresholds based on empirical observations.

In this session, Dr. Leo Eisner will demonstrate that these observations can be explained as order of statistics and show how this theory can be used for TLS.

We look forward to seeing you there!

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Time: June 30, 2021 9:00 AM Pacific Time (US and Canada)

REBROADCAST: The Value Of SHM To Manage Seismic Emergency

REBRADCAST: The Value Of SHM To Manage Seismic Emergency

The management of civil infrastructures in the aftermath of a seismic event is a concern for decision makers, which have to choose quickly among alternative actions with limited knowledge on the actual structural conditions. Structural Health Monitoring (SHM) information can support these decisions.

However, information come with a cost and the relevant benefit must be assessed before the acquisition of the SHM system is decided.

In this rebroadcast, Professor Maria Pina Limongelli introduces us to the Value of Information (VoI) analysis, which is a powerful tool to estimate such benefit and to optimize the design of the SHM system for each specific application.

This informative webinar + Q&A presents a number of applications of VoI in the field of civil engineering for exemplary case studies.

We look forward to seeing you there!

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Time: June 23, 2021 6:00 AM GMT

The Value Of SHM To Manage Seismic Emergency

The Value Of SHM To Manage Seismic Emergency

The management of civil infrastructures in the aftermath of a seismic event is a concern for decision makers, which have to choose quickly among alternative actions with limited knowledge on the actual structural conditions. Structural Health Monitoring (SHM) information can support these decisions.

However, information come with a cost and the relevant benefit must be assessed before the acquisition of the SHM system is decided.

In this session, Professor Maria Pina Limongelli will introduce us to the Value of Information (VoI) analysis, which is a powerful tool to estimate such benefit and to optimize the design of the SHM system for each specific application.

This informative webinar + Q&A presents a number of applications of VoI in the field of civil engineering for exemplary case studies.

We look forward to seeing you there!

REGISTER NOW!

Time: June 16, 2021 9:00 AM Pacific Time (US and Canada)

REBROADCAST: The Importance of Force Balance Accelerometers to Constrain Future and Near Real Time Ground Motion Scenarios

REBROADCAST: The Importance of Force Balance Accelerometers to Constrain Future and Near Real Time Ground Motion Scenarios

Never before have so many strong motion instruments been deployed in the vicinity of active tectonic margins, which has enabled us to understand underlying physical processes of rupture that take place in the event of an earthquake. With the advancement of numerical and empirical techniques to simulate strong ground motion scenarios, with physics-based rupture models, the new objective is to constrain these models with ground motions recorded by force balance accelerometers, by dissecting the underlying physical processes related to the seismic source, path wave propagations, and site effects.

In this rebroadcast, Dr. Jorge Crempien shows several approaches to invert these data to constrain kinematic rupture models on faults, for both scientific and near real time purposes, such as spatial ground motion intensities and cascading tsunami inundation estimations on coastal areas. He will also demonstrate numerical and empirical approaches aimed at constraining ground motion scenarios for regions with little recorded data.

This informative webinar + Q&A places particular focus on numerical methods to simulate ground motion stemming from crustal earthquakes, and the use of small earthquakes to simulate mega-earthquake ground motions on subduction zones, using the Empirical Green’s Function approach.

We look forward to seeing you there!

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Time: June 9, 2021 6:00 AM GMT

The Importance of Force Balance Accelerometers to Constrain Future and Near Real Time Ground Motion Scenarios

The Importance of Force Balance Accelerometers to Constrain Future and Near Real Time Ground Motion Scenarios

Never before have so many strong motion instruments been deployed in the vicinity of active tectonic margins, which has enabled us to understand underlying physical processes of rupture that take place in the event of an earthquake. With the advancement of numerical and empirical techniques to simulate strong ground motion scenarios, with physics-based rupture models, the new objective is to constrain these models with ground motions recorded by force balance accelerometers, by dissecting the underlying physical processes related to the seismic source, path wave propagations, and site effects.

In this session, Dr. Jorge Crempien will show several approaches to invert these data to constrain kinematic rupture models on faults, for both scientific and near real time purposes, such as spatial ground motion intensities and cascading tsunami inundation estimations on coastal areas. He will also demonstrate numerical and empirical approaches aimed at constraining ground motion scenarios for regions with little recorded data.

This informative webinar + Q&A places particular focus on numerical methods to simulate ground motion stemming from crustal earthquakes, and the use of small earthquakes to simulate mega-earthquake ground motions on subduction zones, using the Empirical Green’s Function approach.

We look forward to seeing you there!

REGISTER NOW!

Time: June 2, 2021 9:00 AM Pacific Time (US and Canada)

REBROADCAST: The Effect of Confinement Due to COVID-19 on Seismic Noise in Mexico

REBROADCAST: The Effect of Confinement Due to COVID-19 on Seismic Noise in Mexico

In this rebroadcast, special guest speaker Dr. Xyoli Pérez-Campos discusses effects on seismic noise related to COVID-19 lockdowns in Mexico.

Mexican seismic stations witnessed a reduction in noise level as a result of the lockdown strategies to contain COVID-19. The largest drop was observed in Hermosillo, also the city with the fastest noise level recovery, and a quick increase in confirmed COVID-19 cases. Since June 1, 2020, a traffic-light system modulates the re-opening of economic activities for each state, which is reflected in noise levels. Noise reduction has allowed the identification and perception of smaller earthquakes.

This informative webinar + Q&A is a must-see for anyone interested in how other factors can impact seismic observation.

We look forward to seeing you there!

REGISTER NOW!

Time: May 26, 2021 6:00 AM GMT

The Effect of Confinement Due to COVID-19 on Seismic Noise in Mexico

The Effect of Confinement Due to COVID-19 on Seismic Noise in Mexico

In this session, special guest speaker Dr. Xyoli Pérez-Campos will discuss effects on seismic noise related to COVID-19 lockdowns in Mexico.

Mexican seismic stations witnessed a reduction in noise level as a result of the lockdown strategies to contain COVID-19. The largest drop was observed in Hermosillo, also the city with the fastest noise level recovery, and a quick increase in confirmed COVID-19 cases. Since June 1, 2020, a traffic-light system modulates the re-opening of economic activities for each state, which is reflected in noise levels. Noise reduction has allowed the identification and perception of smaller earthquakes.

This informative webinar + Q&A is a must-see for anyone interested in how other factors can impact seismic observation.

We look forward to seeing you there!

REGISTER NOW!

Time: May 19, 2021 9:00 AM Pacific Time (US and Canada)

REBROADCAST: Review of Recent Applications of Ambient Noise Surface Wave Tomography (ANSWT)

REBROADCAST: Review of Recent Applications of Ambient Noise Surface Wave Tomography (ANSWT)

Ambient seismic noise surface wave tomography for subsurface imaging and monitoring was developed in the early 2000s. Application of the method started with crustal studies and has evolved over the past several years to several applications: seismic hazard assessment, mineral exploration and development, Oil/Gas/Energy exploration and development, geotechnical assessment, and geothermal exploration and development.

In this rebroadcast, special guest speaker, Dan Hollis presents a review of the ANSWT method and review several imaging and monitoring projects performed over the past couple of years.

This informative webinar + Q&A is a must-see!

We look forward to seeing you there!

REGISTER NOW!

Time: May 12, 2021 6:00 AM GMT