![]() ![]() The Tohoku fault had been quiet for more than 800 decades before 2011.Īre mitigation steps being done today to prepare for our next CSZ event? The CSZ starts in Cape Mendocino, CA, and moves to Vancouver Island, Canada. Modern Japan drills their public in earthquake/tsunami preparation.Įven with awareness, the 2011 Tohoku Japanese earthquake/tsunami resulted in over 16,000 deaths. The report provides scientific discoveries through Japanese history from January 1700 from noted samurai, merchants, and villagers who wrote of minor flooding and damage from an orphan tsunami, but no earthquake had been felt. K., Tsuji, Y., Ueda, K., and Yamaguchi, D.K. ![]() “The orphan tsunami of 1700-Japanese clues to a parent earthquake in North America” is a written report by Atwater, B.F., Musumi-Rokkaku, S., Satake, Brian Atwater published in 1987Įvidence of the tsunami from deposits of sand layers overlaying buried peat. Tree rings from the forests helped document the date of the quake’s devastation. With salt water from the quake and tsunami. Geologists Brian Atwater and David Yamaguchi estimated the land at Copalis dropped 5-6 feet and became completely inundated Copalis, Washington, and Neskowin Beach State Recreation Site near Depoe Bay, Oregon, are examples of ghost forests. This salty water poisons the living trees, leaving deadĪnd dying timber stands. What is a ghost forest? Invading advances of seawater encroaches on the land, replacing the freshwater. The children saw the water receding and thought, “cool.” However, the elder knew from oral tradition and experience a tsunami was coming. Rieke speaks of her personal experiences of the 1960 Chilean Tsunami as it reached the Hoh village shore. Hoh tradition tells of a specific tsunami occurring around 1700. The Hoh,” features Hoh elder Viola Rieke telling the story of Thunderbird and Whale roles in tsunamis. Indigenous knowledge, geo-forensics, and written history from other parts of the world provided clues. How are we able to estimate the magnitude of the fault slippage, date, and devastation without modern seismic data? ![]() January 26, 1700, at 9:00 pm, the last Cascadia Subduction Zone megathrust earthquake (CSZ) was estimated at magnitude 8 or 9, and the subsequent tsunami devastated the Pacific Northwest. Breaking News – 322nd Year Anniversary of Cascadia Subduction Zone Earthquake/Tsunami ![]()
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