Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 13-01-2013, 15:46   #16
Registered User

Join Date: Dec 2008
Location: ontario canada
Boat: grampian 26
Posts: 1,743
Re: Abnormal Wave, Jan. 1, 2013

Quote:
Originally Posted by Andrew Troup View Post
Submarine landslide was my thought also, as I can't think of any other plausible explanation, especially since land was in the way for it to be a freak coincidence of a number of underlying wavetrains coinciding at a peak. Furthermore, you would expect other waves building up to and decaying from that highest individual wave, if it was a question of summation.Landslides on dry land can happen in the absence of seismic activity, indeed they usually do, so I see no reason to doubt Cormorant's assertion that this is also possible for underwater landslides.
The subsea coast of Hawaii is littered with the remains of long run out lanslides so definitely not out of the question as a potential cause.
__________________

__________________
perchance is offline   Reply With Quote
Old 13-01-2013, 16:53   #17
Senior Cruiser
 
Roy M's Avatar

Cruisers Forum Supporter

Join Date: Feb 2007
Location: Southwestern Yacht Club, San Diego, CA
Boat: Searunner 40 trimaran, WILDERNESS
Posts: 3,042
Images: 4
Re: Abnormal Wave, Jan. 1, 2013

About 100 miles west of San Diego, out in the middle of nowhere, lies a spot that generates the largest surfable waves on the planet. The Cortez Bank rises from deep water to within 6 feet of the surface as Bishop Rock. This spot took a big 65 foot bite out of the aircraft carrier USS Enterprise in 1985. It nailed one of the boats in my yacht club during a Round Bishop Rock race two years ago. Sailing along in a light fog, and light wind, at 3AM, they were thrown on their beam ends with no warning. Fortunately, all the companionway boards were in and the hatch closed, and all on watch were secured. Folks inside got rousted pretty violently, as well.
Attached Thumbnails
Click image for larger version

Name:	aaronchang_mikeparsons.jpeg
Views:	67
Size:	27.7 KB
ID:	52838  
__________________

__________________
Roy M is offline   Reply With Quote
Old 13-01-2013, 18:28   #18
Registered User

Join Date: Jan 2013
Location: San Francisco Bay
Boat: Olson 34
Posts: 60
Re: Abnormal Wave, Jan. 1, 2013

What was the depth at your location ? Did the wave pass over a nearly flat plane that would provide enough pitch up to cause a wave to break ?
__________________
brianb00 is offline   Reply With Quote
Old 14-01-2013, 13:54   #19
Registered User

Join Date: May 2009
Location: Grenada
Boat: Shorebro,Royal 33 - Aloisius
Posts: 927
Re: Abnormal Wave, Jan. 1, 2013

Not sure of the depth, although Open CPN says it was over 1000 ft in that area. It seems as a gradual rise from there to shore.
__________________

__________________
landonshaw is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 03:37.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.