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Study Reveals Fickle Hill's Earthquake Risk in California

8/21/2025

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Summary

Story summary

A study identified Fickle Hill, near Arcata, California, as a potential epicenter for a 1954 earthquake linked to the Cascadia Subduction Zone.
The zone's infrequent smaller quakes raise concerns about its seismic behavior.
Findings indicate that smaller ruptures can occur, improving understanding of earthquake hazards in the Pacific Northwest.

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Story summary

A study identified Fickle Hill, near Arcata, California, as a potential epicenter for a 1954 earthquake linked to the Cascadia Subduction Zone.
The zone's infrequent smaller quakes raise concerns about its seismic behavior.
Findings indicate that smaller ruptures can occur, improving understanding of earthquake hazards in the Pacific Northwest.