Time and size of a giant earthquake in Cascadia inferred from Japanese tsunami records of January 1700

  title={Time and size of a giant earthquake in Cascadia inferred from Japanese tsunami records of January 1700},
  author={Kenji Satake and Kunihiko Shimazaki and Yoshinobu Tsuji and Kazue Ueda},
GEOLOGICAL evidence shows that great earthquakes have occurred in the recent prehistoric past in the Cascadia subduction zone, off the Pacific coast of North America. The most recent event (or series of events) is dated at about 300 years ago1–4, but the precise date and magnitude have not been determined. Geological investigations have not been able to distinguish a single giant earthquake from a series of great earthquakes occurring over a timespan of a decade or two4, although this… 

Source of the 1730 Chilean earthquake from historical records: Implications for the future tsunami hazard on the coast of Metropolitan Chile

Historical records of an earthquake that occurred in 1730 affecting Metropolitan Chile provide essential clues on the source characteristics for the future earthquakes in the region. The earthquake

Dating the 1700 Cascadia Earthquake: Great Coastal Earthquakes in Native Stories

Although scientific recognition of the earthquake hazard presented by the Cascadia subduction zone (CSZ) is relatively recent, native peoples have lived on the Cascadia coast for thousands of years,

Was the January 26th, 1700 Cascadia Earthquake Part of a Rupture Sequence?

  • D. Melgar
  • Geology
    Journal of Geophysical Research: Solid Earth
  • 2021
Coastal subsidence, dating of plant remains and tree rings, and evidence for tsunami inundation point to coseismic activity on a sizable portion of the Cascadia subduction zone around three centuries

The first ocean floor evidence of great Cascadia earthquakes

[1] It can be argued that Japan's giant 11 March 2011 Tohoku earthquake and its tsunami should not have come as geophysical surprises. GPS had shown that the entire subduction zone along the Japan


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THE Cascadia subduction zone, a region of converging tectonic plates along the Pacific coast of North America, has a geological history of very large plate-boundary earthquakes1,2, but no such

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THE Cascadia subduction zone, which extends along the northern Pacific coast of North America, might produce earthquakes of magnitude 8 or 9 ('great' earthquakes) even though it has not done so

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Earthquakes in the past few thousand years have left signs of land-level change, tsunamis, and shaking along the Pacific coast at the Cascadia subduction zone. Sudden lowering of land accounts for

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If large subduction earthquakes occur in the Pacific Northwest, relatively strong shaking can be expected over a large region, and such earthquakes may also be accompanied by large local tsunamis.

The great Kurile Earthquake of October 4, 1994 tore the slab

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Tsunamis are numerically modeled using the nonlinear shallow-water equations for three hypothetical Cascadia subduction zone earthquakes. Maximum zero-to-peak tsunami amplitudes and currents are

Determining Recurrence Intervals of Great Subduction Zone Earthquakes in Southern Alaska by Radiocarbon Dating

We outline here research in progress directed towards determining the seismotectonic cycle in the part of south-central Alaska that was deformed by vertical tectonic displacements during the great