The ShakeAlert earthquake early warning system has been rapidly expanding since its launch in 2021. Now, researchers at University of Washington affiliated Pacific Northwest Seismic Network (PNSN) have finished all planned installations, bringing the two-state total to 569 seismic monitoring stations spread across Washington and Oregon.

The ShakeAlert earthquake early warning system has been rapidly expanding since its launch in 2021. Now, researchers at University of Washington affiliated Pacific Northwest Seismic Network (PNSN) have finished all planned installations, bringing the two-state total to 569 seismic monitoring stations spread across Washington and Oregon.

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