Great Japan quake generates 8-foot tsunami in California

By: Dr. Jeff Masters , 23:00 GMT le 11 Mars 2011

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A great earthquake rocked the coast of Japan at 5:46 GMT on March 11, generating a dangerous tsunami that raced across the Pacific. The mighty earthquake was rated 8.9 on the Richter scale, making it the 7th most powerful tremor in world history. The world's 8th largest earthquake, a magnitude 8.8 event, hit Chile on February 27, 2010; never before have two top-ten earthquakes hit so close together in time. Today's quake was the strongest in Japanese history, and will likely be the most expensive natural disaster in world history, surpassing the $133+ billion dollar price tag from Hurricane Katrina.


Figure 1. Model-computed energy from the March 11, 2011 tsunami as visualized by the NOAA Visualization Lab.

In the U.S., the highest tsunami waves from the earthquake hit northern California and southern Oregon, with a wave height of 8.1 feet observed at Crescent City, CA, 8.6 feet at Port San Luis, CA, 8.7 feet at Arena Cove, CA, and 6.1 feet at Port Orford, OR. The tsunami swept four photographers out to sea in the Crescent City harbor, injuring three of them and leaving one missing. Extensive damage was done to the harbor and 35 boats. Up to $2 million in damage also occurred in the Santa Cruz harbor south of San Francisco.


Figure 2. Tide gauge at Crescent City, CA during the March 11, 2011 tsunami. The green line shows the height of the tsunami wave; the red line shows the observed water level. The highest tsunami wave came at at 17 UTC (9am PST), an hour and 10 minutes after the initial wave, and was 7 feet high. Image credit: NOAA.

Crescent City was hit by a devastating tsunami after the March 28, 1964 magnitude 8.8 earthquake in Alaska, which killed ten people in the city and destroyed much of the business district. The city is fortunate today that the tsunami hit at low tide, or else water levels would have been five feet higher in the city during the wave. The tide gauge at Crescent City, CA (Figure 2) shows that at least 18 separate tsunami waves have hit the harbor as of 2:45pm PST. The first wave came at about 15:50 UTC (7:50am PST), was about 2.5 feet high, and was not preceded by the ocean falling and water being sucked out to sea. After this initial wave, the ocean level dropped rapidly by 8 feet, and then a series of large waves began rushing in and out, with up to a 13 foot difference between low water and high water. The rapid speed of the in-rushing and outflowing waves were what did the damage to the harbor and its boats. The largest wave came at 17 UTC (9am PST), an hour and 10 minutes after the initial wave, and was 8.1 feet high. Fortunately, this wave came near the time of low tide, and the wave was only 2 feet above last night's high tide mark. Tidal range between low and high tide is about 5 feet at Crescent City. The tide is now rising, and new tsunami waves with height of 3 - 4 feet are still rushing in and out, with the one just before 21 UTC (1pm PST) reaching a height about 2 feet above high tide.


Figure 3. Propagation of the March 11, 2011 Honshu tsunami was computed with the NOAA forecast method using the MOST model with the tsunami source inferred from DART® data. From the NOAA Center for Tsunami Research, located at NOAA PMEL in Seattle, WA.

Portlight.org is mobilizing to provide financial assistance to people with disabilities affected by the disaster, and there will undoubtedly be a huge relief effort by numerous charities in the wake of the earthquake. Your financial contributions and prayers for those affected will be valuable.

Jeff Masters

Waves (Feather3)
During our tsunami warning that had been downgraded to an advisory, this afternoon. It was getting closer to high tide, but it was strange, watching the surges: one minute, the beach was bare, and within minutes, a surge would build up as wave after wave, low, but surging, would inundate the beaches....more shots to come.
Waves

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Raised roadbeds equals dikes holding sea-water inland.
Tsunami waves up-and-over, then debris-clogged drains&culverts slow/prevent return to the ocean.
Member Since: 21 août 2007 Posts: 0 Comments: 4860
Quoting atmoaggie:
Or maybe the China effect from the fracking in Arkansas, only they missed China.

Or maybe the quake was caused by plate tectonics.
I'm sorry is that suppose to be sarcastic or real?.I do think it has something to do with that volcano.
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for atmo:

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TsunamiWaveHeight.jpg. LARGE
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Quoting sunlinepr:
Keys to Long Life? Not What You Might Expect

ScienceDaily (Mar. 12, 2011) — Cheer up. Stop worrying. Don’t work so hard. Good advice for a long life? As it turns out, no. In a groundbreaking study of personality as a predictor of longevity, University of California, Riverside researchers found just the opposite.

"It's surprising just how often common assumptions -- by both scientists and the media -- are wrong," said Howard S. Friedman, distinguished professor of psychology who led the 20-year study....

Link



dos that have any thing too do on what where talking about on the blog and i dont think any ones care about that any way well not right now
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Quoting washingtonian115:
Anyway I think that volcano in Hawaii had something to do with this earthquake.


Maybe, 'cause it's all part of the same PLANET! Actually, 3.0 measured near Hawaii just a bit ago, and 2 new ones in Japan, 5.0, Honsho. Put together all the quakes in the past six month, with eruptions, somethings waking up.
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Quoting aquak9:
hush about air traffic, Oss...my dau is in the air as we speak.


I am South of MacDill. Last time I saw stuff like that, I had 29 C-130's run right over me (well overhead). That was years ago and they were on a mission South of us. Can't remember if that was Panama or Haiti :(
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"U.S. reactors also do not have enough backup power to ensure a safe shutdown during an emergency."
I know it's really needed to do things right, but pointing the oxymoron of a running power plant needing to have backup power to shut down...
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thank you!!!!!
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Quoting NRAamy:
Jerry, you have mail.


You have an answer, Amy...
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Quoting washingtonian115:
The quake was upgraded to 9.1 according to cnn.I'm watching them now.Anyway I think that volcano in Hawaii had something to do with this earthquake.
Or maybe the China effect from the fracking in Arkansas, only they missed China.

Or maybe the quake was caused by plate tectonics.
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Scientists say Japan quake shows US nuclear risk

By Scott DiSavinoPosted 2011/03/11 at 1:10 pm EST

NEW YORK, Mar. 11, 2011 (Reuters) — The massive earthquake that forced the closure of four nuclear power plants in Japan has highlighted the grave risk of inadequate back-up generators at U.S. facilities, a leading U.S. scientist group said on Friday.

While the U.S. regulator made clear that the national nuclear fleet is built to withstand the biggest earthquakes in history, scientists said they needed to do more to ensure that future quakes don't risk the kind of reactor impact that Japan is now grappling with.

"We do not believe the safety standards for U.S. nuclear reactors are enough to protect the public today," Edwin Lyman, senior scientist, global security programs, at the Union of Concerned Scientists, told Reuters. The group supports nuclear power as a means to combat global warming, but wants tougher safety measures.

The magnitude 8.9 earthquake that rocked Japan on Friday knocked out power to the backup cooling systems of a reactor in Fukushima prefecture, north of Tokyo, forcing the evacuation of thousands of residents.

Operator Tokyo Electric Power Co said rising pressure inside the No.1 reactor had elevated the risk of a radiation leak, Jiji News reported on Saturday, although officials said earlier there had not been a leak.

Lyman said U.S. reactors also do not have enough backup power to ensure a safe shutdown during an emergency. If reactors could lose both off-site power and backup generators it could lead to a core meltdown in a short period of time.

Nuclear plants need power to keep water flowing over the fuel rods to prevent overheating.

BUILT TO STAND

But news of widespread shutdowns across the nuclear sector in Japan raised questions about how the United States' 104 reactors would respond in the event of a similar quake, one of the five biggest of the past century.

"There have been tremblers felt at U.S. plants over the past several years, but nothing approaching the need for emergency action," Scott Burnell, a spokesman at the Nuclear Regulatory Commission told Reuters.

Before any reactor is built in the United States, owners are required to conduct geologic seismic studies to determine the biggest earthquake to have occurred in that area going back thousands of years. As in Japan, U.S. reactors are designed to safely shut in the event of an earthquake.

If a bigger earthquake were to occur, Burnell said the plant safety systems would continue to provide the level of safety needed to shut the plant but there would likely be some degradation, though not more than the plant was designed for.

Two U.S. nuclear plants along the California coast made preparations for a potential Pacific Ocean tsunami on Friday, but continued to operate normally.

The reactors -- built by companies including PG&E Corp and Edison International -- are designed to safely shut in the event of an earthquake that big, Burnell said.

There are multiple and redundant safety systems at a nuclear plant used to shut the reactor and prevent the release of radiation during an accident.

These systems include an air tight steel or reinforced concrete containment building with walls between 4 to 8 feet thick that is strong enough to withstand the impact of a fully loaded passenger airliner without rupture, and a reactor vessel containing the uranium fuel rods that is made of high tensile steel four to eight inches thick.

The two biggest nuclear operators in the United States are Exelon Corp and Entergy Corp.

(Reporting by Scott DiSavino; Editing by David Gregorio)

Link
Member Since: 2 août 2010 Posts: 21 Comments: 9648
Quoting CybrTeddy:
Not to go off Japan but did WMO announce the retired names from the 2010 list yet?
I have heard nothing on this...The data gathered by now should be sufficient to determine whether a 2010 storm is worthy of retirement.....i think...
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Quoting CybrTeddy:
Not to go off Japan but did WMO announce the retired names from the 2010 list yet?
I tried to find news about that.But couldn't find any.
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hush about air traffic, Oss...my dau is in the air as we speak.
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Low Cost Solar Cells: New European Record in Efficiency

ScienceDaily (Mar. 11, 2011) — Kesterites combine the low cost of thin film solar cell technologies with extremely low raw material cost. Their main component consists of copper, zinc, tin, and sulfur or selenium, all abundant and low cost elements. Several labs have reported that the loss of tin during preparation limits the ability to control deposition processes. The Laboratory for Photovoltaics has now developed a preparation process that allows controlling the tin loss and has in the first attempt led to record efficiency....

Link
Member Since: 2 août 2010 Posts: 21 Comments: 9648
The quake was upgraded to 9.1 according to cnn.I'm watching them now.Anyway I think that volcano in Hawaii had something to do with this earthquake.
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Hmmm, if ICESat were up, it would be useful for land elevation changes. The first one already died and the second not launching until 2016.
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Interesting Ob, from just North of SRQ ~~~ large amount of air traffic in close proximity over the last 45 minutes. That just does not happen.
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Keys to Long Life? Not What You Might Expect

ScienceDaily (Mar. 12, 2011) %u2014 Cheer up. Stop worrying. Don%u2019t work so hard. Good advice for a long life? As it turns out, no. In a groundbreaking study of personality as a predictor of longevity, University of California, Riverside researchers found just the opposite.

"It's surprising just how often common assumptions -- by both scientists and the media -- are wrong," said Howard S. Friedman, distinguished professor of psychology who led the 20-year study....

Link

Daybreak reveals huge devastation in tsunami-hit Japan

TOKYO (Reuters) %u2013 Japan confronted devastation along its northeastern coast on Saturday, with fires raging and parts of some cities under water after a massive earthquake and tsunami that likely killed at least 1,000 people.

Link
Member Since: 2 août 2010 Posts: 21 Comments: 9648
More than likely that's the U2 Mission,...
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Quoting Patrap:
A NASA U2 has left Kadena,AFB Okinawa to the North.

Seems we may be taking a Sniff of the Atmo soon.



Radiation?
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12 feet tsunami in Kona, Hawaii.
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Quoting klaatuborada:


I would think that gps could figure that out quickly, but perhaps not, it there's nothing working on land. What agency would be able to figure that out would do that kind of work - bouncing beams from satellites to earth and measuring...
USGS and/or NOAAs NGDC would be the primary ones. Looking.
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#
0033: Naval and coastguard helicopters airlift all 81 people to safety from a ship that was swept out to sea by a tsunami, the AFP news agency reports, quoting Japanese media.

BBC

Yay!
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Japan quake causes emergencies at 5 nuke reactors

By MARI YAMAGUCHI and JEFF DONN, Associated Press Mari Yamaguchi And Jeff Donn, Associated Press – 20 mins ago

TOKYO – Japan declared states of emergency for five nuclear reactors at two power plants after the units lost cooling ability in the aftermath of Friday's powerful earthquake. Thousands of residents were evacuated as workers struggled to get the reactors under control to prevent meltdowns.

A single reactor in northeastern Japan had been the focus of much of the concern in the initial hours after the 8.9 magnitude quake, but the government declared new states of emergency at four other reactors in the area Saturday morning.

The earthquake knocked out power at the Fukushima Daiichi plant, and because a backup generator failed, the cooling system was unable to supply water to cool the 460-megawatt No. 1 reactor. Although a backup cooling system is being used, Japan's nuclear safety agency said pressure inside the reactor had risen to 1.5 times the level considered normal.

Authorities said radiation levels had jumped 1,000 times normal inside Unit 1 and were measured at eight times normal outside the plant. They expanded an earlier evacuation zone more than threefold, from 3 to 10 kilometers (2 miles to 6.2 miles). Some 3,000 people had been urged to leave their homes in the first announcement.

Link
Member Since: 2 août 2010 Posts: 21 Comments: 9648
I think they had to re-draw the maps of the alaskan coastline after the '64 quake

if the global warming don't getcha, the tsunamis will
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Not to go off Japan but did WMO announce the retired names from the 2010 list yet?
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Quoting klaatuborada:
One third of the city of Kesenunna underwater, Tsunami estimated at 30', is it possible that parts of Japan are lower than they used to be?
That's what I asked earlier as a scientist on Nhk was puzzled why the water had not receded.
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Quoting Patrap:


If we dont see the surge from the Tsunami recede from the affected inland regions from the coast,

Im assuming that has occurred as some of the Top Japanese Phd's in that regard are kinda baffled and mentioning the same as the first light images continue to stream in.

Some Quakes,,big ones as in Chile can raise the Land,,and Im sure the inverse is possible as well


I would think that gps could figure that out quickly, but perhaps not, it there's nothing working on land. What agency would be able to figure that out would do that kind of work - bouncing beams from satellites to earth and measuring...
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A NASA U2 has left Kadena,AFB Okinawa to the North.

Seems we may be taking a Sniff of the Atmo soon.



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Quoting klaatuborada:
#
0023: People living within a 3km (two-mile) radius of the Fukushima-Daini nuclear plant are told to evacuate, the AFP news agency reports.
Was that not already expanded to a 10 km radius? Or is that for a different plant?
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Jerry, you have mail.
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According to Asahi, the 10 km radius beyond the initial evacuation was for people to remain indoors
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Quoting klaatuborada:
One third of the city of Kesenunna underwater, Tsunami estimated at 30', is it possible that parts of Japan are lower than they used to be?
Yes, that is possible.
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Quoting klaatuborada:
One third of the city of Kesenunna underwater, Tsunami estimated at 30', is it possible that parts of Japan are lower than they used to be?


If we dont see the surge from the Tsunami recede from the affected inland regions from the coast,

Im assuming that has occurred as some of the Top Japanese Phd's in that regard are kinda baffled and mentioning the same as the first light images continue to stream in.

Some Quakes,,big ones as in Chile can raise the Land,,and Im sure the inverse is possible as well
Member Since: Posts: Comments:
#
0023: People living within a 3km (two-mile) radius of the Fukushima-Daini nuclear plant are told to evacuate, the AFP news agency reports.
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One third of the city of Kesenunna underwater, Tsunami estimated at 30', is it possible that parts of Japan are lower than they used to be?
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2 days ago this was uploaded


Uploaded by SolarWatcher on Mar 8, 2011

A Strong Earthquake Strikes Near The Coast Of Honshu, Japan ... no significant reports of Tsunami associated with this event

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Quoting aquak9:
ya'lls who've been here all day- -

are ya'll like, totally exhausted? I am, emotionally just wore out, like I can't even feel anything much any more.


The worst was the video of Sendai city and the farmland outside of it; the cars being swept off the bridge and the buidlings just disappearing...

I am however, fresh as a daisy (got to love a nice Bucarmaranga)...
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#
0014: Japan declares a state of emergency at the Fukushima-Daini power plant, where three of its reactors failed, the Associated Press reports. It says a state of emergency is already in place at the nearby Fukushima-Daiichi plant, where two reactors failed.
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Quoting Neapolitan:

Awesome, wasn't it? A clandestine military Delta IV launch...followed five minutes later by the ISS on a downward pass, always a pleasant sight...


Saw both of them!
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ya'lls who've been here all day- -

are ya'll like, totally exhausted? I am, emotionally just wore out, like I can't even feel anything much any more.
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Military Gears Up to Help Japan

By Cheryl Pellerin
American Forces Press Service




WASHINGTON, March 11, 2011

U.S. forces are swinging into action to assist Japan in the wake of a magnitude 8.9 earthquake that struck early this morning.

We are assessing the situation and positioning forces so that they are ready to respond and provide disaster relief if directed, said Navy Cmdr. Leslie Hull-Ryde, a Pentagon spokeswoman.

Japan has requested U.S. assistance through the State Department.

The USS Tortuga, in Sasebo, Japan, is preparing to load landing craft and to leave for the disaster areas as early as this evening.

The USS Essex, with the embarked 31st Marine Expeditionary Unit, arrived in Kota Kinabalu, Malaysia, this morning. The ship is preparing to depart as early as this evening.

The USS Blue Ridge, in Singapore, is taking on humanitarian assistance and disaster relief supplies and preparing to depart tomorrow morning.

The USS Ronald Reagan carrier strike group, at sea in the western Pacific on its way to Korea, can respond if directed.

We are watching the situation closely and will adjust the track as required, Hull-Ryder said.

Earthquake impacts on 7th Fleet, with headquarters in Yokosuka, Japan, include the following:

-- Ships in port in Yokosuka stationed linehandlers to adjust to water-level changes in Yokosuka harbor. No damage has been reported to any of the ships.

-- Ships in Guam have been directed to leave if possible, or to recall personnel and adjust lines during changes in sea level.

-- Maritime Patrol and Reconnaissance Force headquarters in Misawa was briefly evacuated. It is without power and operating from a generator.

-- Amphibious Force headquarters in White Beach, Okinawa, moved its watch to higher ground at Kadena Air Base in preparation for a forecasted tsunami.
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Quoting Chicklit:
What just launched from Canaveral?
It was spectacular!

Awesome, wasn't it? A clandestine military Delta IV launch...followed five minutes later by the ISS on a downward pass, always a pleasant sight...
Member Since: 8 novembre 2009 Posts: 4 Comments: 13275
First Light assessment teams embarking throughout the impacted Coastal region.

ob's reports are .."incredible devastation" to quote one.

Also more aircraft are requested from the US by the Japanese Self Defence Cdr.
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About JeffMasters

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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