Group A, Poster #017, Seismology
Seismogeodetic early warning system: A step forward in tsunami and earthquake warning and mitigation
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Poster Presentation
2025 SCEC Annual Meeting, Poster #017, SCEC Contribution #14497 VIEW PDF
r strike-slip and normal fault events.
We further expand the method’s applicability by interpolating coseismic windows from collocated GNSS and accelerometer stations to stand-alone GNSS. This nearly doubles the usable network and maintains magnitude estimation errors within ±0.2 units of Mwg. While radiation pattern corrections offer substantial benefits for thrust and normal faulting events, we find they can be omitted for strike-slip events in real-time applications. Our findings support an adaptive workflow that leverages tectonic context (e.g., Slab2 geometry) to inform model selection, emphasizing the importance of network geometry and station density. These results enhance real-time earthquake and tsunami early warning capabilities by improving the robustness of magnitude estimation across varying faulting styles and network configurations.
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We further expand the method’s applicability by interpolating coseismic windows from collocated GNSS and accelerometer stations to stand-alone GNSS. This nearly doubles the usable network and maintains magnitude estimation errors within ±0.2 units of Mwg. While radiation pattern corrections offer substantial benefits for thrust and normal faulting events, we find they can be omitted for strike-slip events in real-time applications. Our findings support an adaptive workflow that leverages tectonic context (e.g., Slab2 geometry) to inform model selection, emphasizing the importance of network geometry and station density. These results enhance real-time earthquake and tsunami early warning capabilities by improving the robustness of magnitude estimation across varying faulting styles and network configurations.
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