Huge 8.9 quake plus tsunami - Japan

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TomCochrane

Trad climber
Santa Cruz Mountains and Monterey Bay
Mar 11, 2011 - 06:44pm PT
i was on my boat in the harbor when the news hit last night

had to decide to run for my house on high ground, or try to save the boat

i cruised out of the harbor at first light and got a few miles off shore

the waters were calmer than usual, except for huge swells that came rolling through

the local harbors have been hard hit, docks torn up, boats battered and sunk

the dredge broke loose cxrossways and blocked the harbor entrance

the winds have come up and the sea is pretty rough now

i am now anchored outside of Santa Cruz with a number of other big boats; and thankful to still have a boat

a few minutes ago the normally calm harbor still has a 10 mph surge moving pieces of docks and boats and lots of debris around in the harbor

i would be helping with salvage efforts, but right now am avoiding become salvage
Brandon-

climber
Done With Tobacco
Mar 11, 2011 - 07:08pm PT
Jeez, Crag.

Leave your agendas out of a terrible occasion, please.

Plus, you're talking apples and oranges man.
Seamstress

Trad climber
Yacolt, WA
Mar 11, 2011 - 07:26pm PT
In Depoe Bay, Terry Owings, the city superintendent of Depoe Bay, said repeated surges of water have destroyed the first of five docks closest to the mouth of the bay. Large timbers have been trashing about in the water.

"Those are like battering rams," he said.

Owings estimates the damage in the hundreds of thousands of dollars.

A private company has been scooping up timbers and other debris to prevent them from damaging boats, which have avoided damage so far by moving to docks farther back.

The surges started at about 9:30 a.m. or 10 a.m., with the worst hitting sometime around noon or 1 p.m. Owings estimates the water is surging every 20 minutes.

Credit goes to Regon Live

"It takes 10 minutes to go out and then it just turns around and it comes back in,” said Owings, who is worried about unseen destruction if the surges continue into the night.

In Coos Bay: Near Coos Bay, surges of water rushed in and out of the port, simulating a high tide and low tide cycle every 15 minutes, said Coast Guard Boatswain's Mate First Class Walter Morey.

"It did that like 12 times in three hours," he said. "It's pretty impressive to see this happen right in front of your eyes."

The water traveled at a fast clip as well, about three times the typical speed, he said.

Pilings separated from the docks, forcing a few boats to break loose of their mooring lines, he said. One dock broke completely away from the pier, with a sailboat attached to it. Coast Guard crews who assisted had to cut the mooring lines before the dock dragged the boat under the water.
cleo

Social climber
Berkeley, CA
Mar 11, 2011 - 07:37pm PT
Elcapinyoazz... HOLY SHIZZLE!

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/quakes_all.html


Edit: Aftershock forecasts go something like this ... for a M9, you expect, aftershock-wise, 1 M8, 10 M7, 100 M6, 1000M5 ...

landcruiserbob

Trad climber
BIG ISLAND or Vail ; just following the sun.......
Mar 11, 2011 - 07:46pm PT
Hit my hotel here on the Kohala coast. Destroyed some beach buildings & sea walls. Good news it deposited 100 tons of fresh sand to the beach :-).

Evacuated 700 hotel guest at 11:00 pm.

We had more than 10 surges of rougly 3-4 feet. Quite an amazing sight to see water stack up like that. Lots of head presure in the pacific ocean.



Aloha & be well

rg
bluering

Trad climber
Santa Clara, CA
Mar 11, 2011 - 08:01pm PT
Elcapinyoazz... HOLY SHIZZLE!

That link shows 6.X activity tthe day before too, which is interesting and a bit unusual. Look at the day BEFORE the biggie hit. Is that normal for Japan?

It is surely not normal for this side of 'the Ring of Fire'.

I fear we are next. Too much plate slippage lately and that's a big slip in Japan. Our plate alomost HAS to go next.
cleo

Social climber
Berkeley, CA
Mar 11, 2011 - 08:09pm PT
bluering...

There was a magnitude 7.2 2 days ago, and then aftershocks from that EQ started - before that, nothing.

It looks very likely that the M7.2 triggered the Big One, which is very interesting.

In short, no, this is not normal for Japan.
bluering

Trad climber
Santa Clara, CA
Mar 11, 2011 - 08:15pm PT
Thanks, Val. I took an basic Geology class in college for some science credit. That was when our Loma Prieta quake hit. Many people didn't show up for class the day after, but I was eager to hear from the Prof. He was pretty troubled at the magnitude...of a 7.6!

Imagine an 8.9! Holy!!!!

Hard to fathom. The 7.6 was kinda fun in silly retrospect, mostly because I was okay. Kinda selfish, I know, because people died. But there would be no happy hindsight of quake of Japan's magnitude. It boggles the mind as to what that would feel like.
cleo

Social climber
Berkeley, CA
Mar 11, 2011 - 08:24pm PT
Imagine this... Loma Prieta today is considered to "only" be a M 6.9, not a 7.6.

Given how earthquake scaled are calibrated, a M8.9 is 1000x (not 100x) more powerful than a M6.9 (each step up is 32x, so 32x32 =1024). The accelerations, however, are approximately 100x greater (over a much larger area). How does that relate to physics?

EQ magnitude = (rupture length) x (rupture width) x (average displacement) x (strength coefficient of fault).

Strength of shaking -> size of EQ, distance to EQ, soil/site conditions, + directivity (e.g. is the rupture heading toward you... like a Doppler effect)

SO! The shaking in Loma Prieta (in the Bay Area) and in Japan (on land) is of similar strength, because the Japan EQ is so far away. Of course, Japan also has a tsunami, which looks to be causing most of the damage, while Loma Prieta (and future local EQs) have no such hazard. And, the shaking in Japan occurs over a much, much larger area.

The Loma Prieta shakemap is here:

A photo of the Japanese shakemap and a prediction for the Hayward fault is here:
bluering

Trad climber
Santa Clara, CA
Mar 11, 2011 - 08:27pm PT
Cool stuff, Val! Thanks.
corniss chopper

climber
breaking the speed of gravity
Mar 11, 2011 - 08:31pm PT
Grant our brothers and sisters in Japan, O Lord, a steady hand and watchful eye, that no more shall be hurt.

Thou gavest life, I pray no more shall perish or be injured by the earthquake.
Shelter and help those, dear Lord, who are in need from the evils of nuclear reactor poisons and other calamity.

And let the beauty of your Earth return to Japan and lead all of your children back into safety.
Amen.

bluering

Trad climber
Santa Clara, CA
Mar 11, 2011 - 08:33pm PT
Amen, CC.
T2

climber
Cardiff by the sea
Mar 11, 2011 - 08:42pm PT
My heart weeps for Japan. All problems and issues in my life seem so trivial.
Oxymoron

Big Wall climber
total Disarray
Mar 11, 2011 - 10:03pm PT
The Earth is Alive. Remember that. We live or die at HER discretion.
That's fair. Or at least I think it is.
john hansen

climber
Mar 11, 2011 - 10:15pm PT
Nothing at all compared to Japan, the stuff that happened over there is terrible..
Minor flooding in Kona Hawaii.
Hawaii probably had at least 40 million in damage..



http://www.youtube.com/watch?v=91Wh0_yNJhc&feature=related
tinker b

climber
the commonwealth
Mar 11, 2011 - 10:40pm PT
hey, where is tacos? i can't imagine what it would feel like to be in that without being able to be mobile on my own. my prayers go out to her and all involved.

edit: okay i found this on the other thread
Tacos is living in a special facility for handicapped people in Hiroshima.
Jan
so now i will look up where that is... many thoughts go out to her...
Peter Haan

Trad climber
San Francisco, CA
Mar 11, 2011 - 10:55pm PT
Remarkably good set of 47 images from Boston.com:

http://www.boston.com/bigpicture/2011/03/massive_earthquake_hits_japan.html
tinker b

climber
the commonwealth
Mar 11, 2011 - 10:57pm PT
okay using the map jan included, it looks like tacos isn't inthe worst spot, but it doesn't look awesome.
good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts good thoughts ...
valygrl

climber
Boulder, CO
Mar 11, 2011 - 11:38pm PT
Tacos is OK, she is in (correction) Okayama, she and her family were not affected.
neebee

Social climber
calif/texas
Mar 11, 2011 - 11:58pm PT
hey there say, tinker b, and valygrrl... thanks for the note on "tacos"

nice to see a prayer, here too...
thanks for sharing...
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