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Building out the Earthquake Early Warning sites in the Pacific Northwest Seismic Network - If you build it, you can improve it

Description: 

An Earthquake Early Warning (EEW) seismic network is a very beautiful and noble thing. It is also very complex involving locating hundreds of seismic sites for an area as large as the Pacific Northwest Seismic Network covers. Like most EEW systems, the creation of this network started with a base layer of existing analog and digital stations that were sited and installed to fulfill the tracking of earthquake and volcanic hazards in addition to special cases such as monitoring ground motion in and around a former nuclear site that is now a Superfund site. Expanding the network from 184 EEW-eligible stations in 2017 to currently 525 seismic stations that have sent data to ShakeAlert servers involved lots of moveable dots, hazard and population center identification, Google Earth, land ownership databases, door knocking, and more. This presentation will review the gradual change from creating station maps for the best estimate for even coverage of hazard areas to more nuanced approaches and techniques for identifying new seismic station locations and dealing with the remediation and/or relocation of underperforming sites. It is and always will be a task of continual optimization and improvement!

Session: Earthquake Early Warning Optimization and Efficacy

Type: Oral

Date: 4/20/2023

Presentation Time: 04:30 PM (local time)

Presenting Author: Mouse Reusch

Student Presenter: No

Invited Presentation: 

Authors