The epicenter of the historical Seattle earthquake can be located using paleoseismic data

the verdict

SUPPORTED

the evidence backs this

Recorded sources

3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Paleoseismic and geological data, such as coastal subsidence, tsunami deposits, and deformed marine terraces, are standard tools used to locate and analyze historical earthquakes on faults like the Seattle fault zone.

The analysis

The retrieved literature contains multiple studies confirming that paleoseismic investigations—including stratigraphic, diatom, and geomorphic analysis of Holocene deposits and marine terraces in the Puget Sound region—are directly used to study past earthquakes on the Seattle fault zone and related fault systems. There are no papers refuting the use of paleoseismic data for this purpose.

Evidence for · 3

Diatoms as an aid in identifying late-Holocene tsunami deposits

Recorded source metadata

Eileen Hemphill-Haley. Diatoms as an aid in identifying late-Holocene tsunami deposits. 1996. https://doi.org/10.1177/095968369600600406

Diatom analyses of Holocene deposits help identify tsunami and earthquake sources and locations in the Puget Sound area.

Source citation format

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More for · 2

Supplemental Material: Deformed submarine terraces in Puget Sound, Pacific Northwest, indicate only one M >~7.5 earthquake on the Seattle fault zone in the past 11,000 yr

Recorded source metadata

Elizabeth Davis, et al.. Supplemental Material: Deformed submarine terraces in Puget Sound, Pacific Northwest, indicate only one M >~7.5 earthquake on the Seattle fault zone in the past 11,000 yr. 2026. https://doi.org/10.1130/geol.s.31328836

Deformed submarine terraces and related paleoseismic data provide evidence regarding major earthquakes on the Seattle fault zone.

Source citation format

Supplemental Material: Deformed submarine terraces in Puget Sound, Pacific Northwest, indicate only one M >~7.5 earthquake on the Seattle fault zone in the past 11,000 yr

Recorded source metadata

Paleoseismic investigations of submarine features in Puget Sound shed light on large historical earthquakes on the Seattle fault zone.

Source citation format

The paper trail · every fact has a biography

first checked02 Aug 2026

judged → SUPPORTED · 8802 Aug 2026

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