[ghsc-seminars] Thursday, Nov 14th @ 10 am - Brendan Crowell

[Mirus, Benjamin]

*An overview of GNSS Applications for real-time seismic monitoring and
early warning*

*Brendan Crowell*
*University of Washington *

In the past decade, the availability of real-time, high-rate (1 Hz or
greater), geodetic-grade Global Navigation Satellite System (GNSS) stations
has exploded globally. In conjunction with this, products and techniques to
efficiently and robustly process these streams have improved considerably
to the point sub-cm accuracy is possibly over the time span of earthquake
rupture and propagation. GNSS data is especially useful because it is
capable of capturing the true deformation field without going off-scale,
from the dynamic shaking, coseismic displacements, all the way to the
long-term tectonic motions. In contrast, the ability to characterize large
earthquakes is problematic with traditional near-field seismic data and
techniques due to drifts and rotations at inertial sensors. In this talk, I
will show the evolution of this technology from the early 2000s to today,
highlighting the techniques for rapid earthquake source characterization
and how we are using these products for operational earthquake and tsunami
early warnings. I will show how these products can improve real-time ground
motion predictions for some recent earthquakes as well as demonstrate the
ability to provide near-field tsunami forecasts. I will finish by
describing some future prospects in seismic monitoring with real-time
geodetic observations.

*Thursday, November 14th**, 2019*
*10-11am*
*  (Mountain Time)*
*USGS, 1711 Illinois Street, Golden, CO*
*Entry Level Seminar Room (204)*

*Note: Please arrive *~5 minutes early* and *bring photo ID* for
airport-style security measures now in place at the USGS building.

Thank you,
GHSC Seminar Committee

Ben
Mirus - bbmirus at usgs.gov
Josh Rigler - erigler at usgs.gov
Oliver Boyd - olboyd at usgs.gov <oboyd at usgs.gov>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://geohazards.usgs.gov/pipermail/ghsc-seminars/attachments/20191108/1ca1f0a3/attachment.html>