[Rockhounds] Younger Dryas Impact Hypothesis and Missoula (Spokane) Megafloods

[Paul]

Dora asked:

 >I thought earthquakes caused by the subduction zone

 >caused megafloods in that area and they happen every

 >few hundred years, the next one being overdue.

Earthquakes can cause catastrophic coastal flooding on

the form of megatsunamis.

Tsunami

<https://www.mil.wa.gov/emergency-management-division/hazards/tsunami>

1700 Cascadia earthquake

<https://en.wikipedia.org/wiki/1700_Cascadia_earthquake>

Atwater, B. F.; Musumi-Rokkaku, S.; Satake, K.; Yoshinobu, T.;

Kazue, U.; Yamaguchi, D. K. (2005). The Orphan Tsunami of 1700

—Japanese Clues to a Parent Earthquake in North America. U.S.

Geological Survey Professional Paper 1707. United States

Geological Survey–University of Washington Press.

ISBN 978-0-295-98535-0.

<https://web.archive.org/web/20170118213827/https://pubs.er.usgs.gov/publication/pp1707>

<https://web.archive.org/web/20170129092503/https://pubs.usgs.gov/pp/pp1707/pp1707.pdf>

<https://pubs.er.usgs.gov/publication/pp1707>

Yours,

Paul H.