Towards ground motion prediction for potential large earthquakes from interseismic locking models

S Yao, H Yang - Earth and Planetary Science Letters, 2023 - Elsevier
Interseismic locking models derived from geodetic data describe slip deficit accumulation on
faults, hence indicating the likelihood of future earthquakes. In recent years, locking models …

Supervised machine learning of high rate GNSS velocities for earthquake strong motion signals

T Dittmann, Y Liu, Y Morton… - Journal of Geophysical …, 2022 - Wiley Online Library
Abstract High rate Global Navigation Satellite System (GNSS) processed time series capture
a broad spectrum of earthquake strong motion signals, but experience regular sporadic …

Incorporation of Real‐Time Earthquake Magnitudes Estimated via Peak Ground Displacement Scaling in the ShakeAlert Earthquake Early Warning System

JR Murray, BW Crowell, MH Murray… - Bulletin of the …, 2023 - pubs.geoscienceworld.org
ABSTRACT The United States earthquake early warning (EEW) system, ShakeAlert®,
currently employs two algorithms based on seismic data alone to characterize the …

Comparing sensitivities of geodetic processing methods for rapid earthquake magnitude estimation

T Dittmann, K Hodgkinson, J Morton… - Seismological …, 2022 - pubs.geoscienceworld.org
Rapid earthquake magnitude estimation from real‐time space‐based geodetic observation
streams provides an opportunity to mitigate the impact of large and potentially damaging …

Validation of peak ground velocities recorded on very-high rate GNSS against NGA-WEST2 ground motion models

B Crowell, J DeGrande, T Dittmann, J Ghent - Seismica, 2023 - par.nsf.gov
Observations of strong ground motion during large earthquakes are generally made with
strong-motion accelerometers. These observations have a critical role in early warning …

Accelerating low-frequency ground motion simulation for finite fault sources using neural networks

L Lehmann, M Ohrnberger, M Metz… - Geophysical Journal …, 2023 - academic.oup.com
In the context of early emergency response to moderate and large earthquake shaking, we
present a simulation based low-frequency ground motion estimation workflow that expedites …

GRAPES: Earthquake early warning by passing seismic vectors through the grapevine

T Clements, ES Cochran, A Baltay… - Geophysical …, 2024 - Wiley Online Library
Estimating an earthquake's magnitude and location may not be necessary to predict shaking
in real time; instead, wavefield‐based approaches predict shaking with few assumptions …

Capture of coseismic velocity waveform using GNSS raw Doppler and carrier phase data for enhancing shaking intensity estimation

J Zheng, R Fang, M Li, Q Zhao, C Shi, J Liu - Journal of Geodesy, 2024 - Springer
In recent years, coseismic velocity from high-rate global navigation satellite systems (GNSS)
carrier phase data has been widely utilized to estimate instrumental seismic intensity …

Impact of Hypocenter Location on Rupture Extent and Ground Motion: A Case Study of Southern Cascadia

YPB Chan, S Yao, H Yang - Journal of Geophysical Research …, 2023 - Wiley Online Library
The Cascadia subduction zone has well‐documented geological records of megathrust
earthquakes with the latest∼ Mw 9 rupture occurring in CE 1700. The paleoseismic …

Empirical predictive models for fling step and displacement response spectra based on the NESS database

E Schiappapietra, G Lanzano, S Sgobba - Soil Dynamics and Earthquake …, 2022 - Elsevier
The characterization of the fling-step represents a challenging task due to the shortage of
near-source records with permanent tectonic displacement and the limitation in retrieving …