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National Strong Motion Project’s Advancements in Station Health and Integration to the Earthquake Early Warning System in the San Francisco Bay Area

Description: 

The rollout of Earthquake Early Warning (EEW) in the western U.S. highlights an increased need to ensure the continued operation of seismic stations in urban centers. The United States Geological Survey’s (USGS), Advance National Seismic System (ANSS), National Strong Motion Project (NSMP) network, includes seismic stations located on human-built infrastructure to better understand how ground motions from earthquakes affect the integrity and performance of structures and seismic risk upon urban regions. The availability of ground motion records is important for design of earthquake resilient infrastructure and to assess safety following a major earthquake. The NSMP maintains several structural arrays (Buildings: 107, Dams: 77, Bridges: 19, Geotechnical Arrays: 21) and free-field accelerometers (> 450 stations) across the continental United States and in Alaska, Hawaii, and Puerto Rico, which ensure ground motions from large magnitude earthquakes are recorded at locations in the near-field fault source. The increase of EEW contributing stations in the Western U.S. has increased the need for NSMP to strategically manage field operations. Here we highlight new tools to manage knowledge of instrument state of health, planning for ongoing field maintenance campaigns to keep critical stations operating, and upgrades to modernize equipment to allow for real-time dataflow for our field campaigns in the San Francisco Bay Area and beyond. To visualize our networks health in a living state, we are leveraging ArcGIS Online Dashboards combined with Jupyter notebook-based python queries to combine station metadata location and instrumentation information with instrument state of health (battery voltage, clock quality, data flow). This presentation will also include advancements NSMP is focusing on regarding new layout designs that incorporate energy efficient hardware and user-friendly enclosures to protect and expand the longevity of the station’s equipment. We are also exploring adopting field-app based notification of field visits to seismic stations to improve field to data exchange of information.

Session: Network Seismology: Recent Developments, Challenges and Lessons Learned [Poster Session]

Type: Poster

Date: 5/1/2024

Presentation Time: 08:00 AM (local time)

Presenting Author: Veronica

Student Presenter: Yes

Invited Presentation: 

Authors