![Miro reverby](https://loka.nahovitsyn.com/178.jpg)
![pacific northwest earthquake pacific northwest earthquake](https://i2.wp.com/sitn.hms.harvard.edu/wp-content/uploads/2015/07/Cascade_Volcanic_Arc.jpg)
![pacific northwest earthquake pacific northwest earthquake](https://i.dailymail.co.uk/i/pix/2016/03/07/17/31F68D7500000578-3480680-A_powerful_earthquake_thought_to_be_as_large_as_9_2_magnitude_ri-a-7_1457372055816.jpg)
Seawater-drowned Groves and Indian LegendsÄrowned groves of trees occur in several places in the Pacific Northwest. The Japanese call the tsunami their "orphan tsunami" because no earthquake felt in Japan accompanied it. Four contemporary Japanese sources describe the 6- to 10-foot-high tsunami and five of the towns it inundated along 600 miles of the Honshu Island coast. The tsunami traveled across the Pacific Ocean for some 10 hours and at midnight on January 27, 1700, local time, it hit the east coast of Honshu Island, the main island of Japan. It compares with two disastrous earthquakes: the MaAlaska earthquake, which measured 9.2 moment magnitude, and the May 21-22, 1960 Chile earthquake, which measured 9.5 moment magnitude. This was one of the largest earthquakes the Pacific Northwest has ever had. The tsunami, up to 33 feet high, inundated the ocean coast. The earthquake dropped the entire Pacific Northwest ocean coastline three to six feet. The Cascadia subduction zone extends from Vancouver Island, British Columbia (about 49 degrees 30 minutes North Latitude) south to Cape Mendocino in northern California (about 40 degrees North Latitude). The earthquake ruptured what is known as the Cascadia subduction zone - the area of overlap between two of the tectonic plates that make up the earth's surface, the Juan de Fuca plate and the North American plate. Indian legends corroborate the cataclysmic occurrence. Other evidence includes drowned groves of red cedars and Sitka spruces in the Pacific Northwest. Japanese sources document this earthquake, which is the earliest documented historical event in Western Washington. A tsunami forms, reaching about 33 feet high along the Washington coast, travels across the Pacific Ocean and hits the east coast of Japan. The quake violently shakes the ground for three to five minutes and is felt along the coastal interior of the Pacific Northwest including all counties in present-day Western Washington. Pacific Standard Time a gigantic earthquake occurs 60 to 70 miles off the Pacific Northwest coast.
![Miro reverby](https://loka.nahovitsyn.com/178.jpg)