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A One-Stop Shop for Network Status? Developing an Application for a Diverse Set of Users

Description: 

The Pacific Northwest Seismic Network (PNSN) is responsible for monitoring seismic activity in WA and OR and is also part of the USGS ShakeAlert earthquake early warning system. Fulfilling our role effectively requires monitoring metrics related to state of health, telemetry, waveform quality, site noise, and those specific to ShakeAlert. We store, view, and mine these metrics using SQUAC, the Seismic Quality Assessment Console https://github.com/pnsn/squac/wiki. SQUAC consists of a backend database with an API for interfacing, a user-friendly python client to simplify reading and writing, and a web-based GUI with dashboards and alarms. We currently collect or calculate about fifty metrics internally from thousands of channels from ANSS regional seismic networks. External partners are also contributing to the database. Most metrics are calculated every ten minutes, hourly or daily with little lag from real-time. Millions of measurements are added each day to the database which currently has about two billion rows. Recent updates to improve usability include automatic updating of channel groups, new plot types displaying metrics by hour-of-day or hour-of-week, and a configurable alarm summary to customize notification frequency. SQUAC has been designed with diverse users in mind, from field techs monitoring and troubleshooting station health, to network seismologists data mining the database to investigate questions like ideal station distance from roads, to an easy-to-share and easy-to-modify dashboard showing ShakeAlert station acceptance status.

Session: Network Seismology: Recent Developments, Challenges and Lessons Learned

Type: Oral

Date: 4/20/2023

Presentation Time: 08:45 AM (local time)

Presenting Author: Carl W. Ulberg

Student Presenter: No

Invited Presentation: 

Authors