Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.

Photographer: Douglass Halvorsen
Taken: August 18, 2018
Caption: March 11, 2011 Tsunami Marker
Additional Description: What Happened Here?
March 11, 2011
This chart shows the wave height propagation of the tsunami across the entire North Pacific Ocean caused by the 9.0 magnitude earthquake off Japan on March 11th, 2011. The different colors represent different wave heights. Note the red finger reaching out toward the Pacific Northwest. Underwater topography played a major role in determining the direction and height of the surges throughout the Pacific Ocean.
Submitted: January 6, 2019, by Douglass Halvorsen of Klamath Falls, Oregon.
Database Locator Identification Number: p459775
File Size: 1.096 Megabytes

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