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Unlike earthquakes, tsunamis are not classified by "magnitude". Rather, they are usually classified by "run-up", which is the same as 'flood elevation". Run-up can be measured on ocean beaches or in estuaries and river systems. The amount of damage caused by a tsunami depends on flood height, but also on how low the adjacent land is and the amount of development near the shoreline.
The highest tsunami run-up on the Oregon Coast from the March 24, 1964, Good Friday Earthquake was 18.5 ft above prevailing tide on the open beach at the City of Seaside. Within the estuary and rivers of Seaside, run-up averaged 8.5 ft above tide. This is the highest run-up known for that tsunami in Oregon. Only Crescent City, CA, on the west coast of the contiguous USA, had higher wave run-up and considerably more damage than Seaside.
What else can I help you with?
When has a tsunami caused the most damage in US History?
The most destructive tsunami in United States history was in 1964 when a magnitude 9.2 earthquake in Alaska triggered a tsunami along the West Coast. It caused significant damage in Alaska, Oregon, and California, resulting in loss of life and widespread destruction.
What was the magnitude of the earthquake that caused the tsunami in japan on march 2012?
The Tsunami in Japan in 2011 was caused by an earthquake gesitering a magnitude 9.0.
When was the tsunami that destroyed Seward Alaska?
The tsunami that severely impacted Seward, Alaska occurred on March 27, 1964. This devastating event was triggered by the Great Alaska Earthquake, which remains one of the most powerful earthquakes ever recorded.
Does Oregon have tsunamis?
There are several scenarios which can cause a tsunami to hit the Oregon coast. A large earthquake anywhere in the Pacific, volcanic eruptions, and large landslides are probably the three most likely.
Does a tsunami have magnitude?
There are Magnitude scales for Tsunamis, but you have to be a maths wizz to work them out, using the formula Mt = a log h + b log R = D.
When has a tsunami caused the most damage in US History?
The most destructive tsunami in United States history was in 1964 when a magnitude 9.2 earthquake in Alaska triggered a tsunami along the West Coast. It caused significant damage in Alaska, Oregon, and California, resulting in loss of life and widespread destruction.
How can you use the words tsunami and magnitude in the same sentence?
Yes it is possible. The 7.5 magnitude earthquake caused a large tsunami.
Why was it a tsunami in Japan 2011?
there was tsunami because the earthquake had a high magnitude,so made big that caused the tsunami
Can an earthquake with a low magnitude cause a tsunami?
No
What was the magnitude of the earthquake that caused the tsunami in japan on march 2012?
The Tsunami in Japan in 2011 was caused by an earthquake gesitering a magnitude 9.0.
When was the tsunami that destroyed Seward Alaska?
The tsunami that severely impacted Seward, Alaska occurred on March 27, 1964. This devastating event was triggered by the Great Alaska Earthquake, which remains one of the most powerful earthquakes ever recorded.
Does Oregon have tsunamis?
There are several scenarios which can cause a tsunami to hit the Oregon coast. A large earthquake anywhere in the Pacific, volcanic eruptions, and large landslides are probably the three most likely.
Where did a recent tsunami that happen in the US?
Perhaps the most famous, and possibly the last major tsunami in the USA was from the 1964 Alaska earthquake with a resulting tsunami hitting Alaska, and traveling as far a Hawaii and the Oregon/Washington coast.http://en.wikipedia.org/wiki/1964_Alaska_earthquakehttp://ezinearticles.com/?Alaska-Earthquake-and-Tsunami,-1964&id=9558Another Tsunami was the Lituya Bay, Alaska Tsunami in 1958.http://geology.com/records/biggest-tsunami.shtmlSince the Alaska Earthquake in 1964 and the resulting Tsunami, the West Coast of the USA has had a Tsunami early warning system with emergency evacuation plans. There have been a couple of alarms from earthquakes, but no significant waves.Unfortunately, due to human nature, many people flocked to the coast after recent tsunami warnings.
What started the Japan tsunami?
an earthquake (magnitude of 9.0).
When was the tsunami in Alaska?
1964
Does a tsunami have magnitude?
There are Magnitude scales for Tsunamis, but you have to be a maths wizz to work them out, using the formula Mt = a log h + b log R = D.
Is 2004 Indian Ocean earthquake and tsunami the same?
Yes, the 9.0 magnitude earthquake caused the tsunami.
