Re: Hawaii Tsunami Watch!
Latest updates from the Pacific Tsunami Warning Center are posted at http://www.prh.noaa.gov/ptwc/bulletins.htm . Under the heading of "Hawai`i" at the top of the page, click on the link that says "Latest".
As others have said, we're still under a tsunami "watch" and not a "warning", but yes, that can change.
The safest place to be, were there to be a warning and strong signs of an imminent tsunami, would be on a boat, offshore. Remember, tsunami are not waves on the ocean surface -- they're pressure waves under the surface, until they hit shallow water. (The pressure waves can move at speeds up to 600mph.) At sea, the tsunami may only be an inch or so high, but develop into 30' or far far larger once it hits shallow water.
Ergo, safest to be on a boat offshore. The mainland shorelines have a shelf that slowly drops off to deeper water, but here, of course, we have extremely deep water very close to shore. To be safe, on the mainland you'd have to go many miles offshore, but not so much so here.
It's standard procedure in the event of a tsunami warning for Navy and Coast Guard ships to put to sea for that very reason. Anybody have a view of Pearl Harbor and/or Sand Island? If there's a lot of activity of ships leaving harbor, we should pay closer attention.
I saw the 9pm item on KFVE. Still analyzing the data. Interesting that they showed the activity in the PTWC. Nothing frantic, but obviously busy.
I'm guessing we're safe. But Mother Nature can be a fickle wench.
Latest updates from the Pacific Tsunami Warning Center are posted at http://www.prh.noaa.gov/ptwc/bulletins.htm . Under the heading of "Hawai`i" at the top of the page, click on the link that says "Latest".
As others have said, we're still under a tsunami "watch" and not a "warning", but yes, that can change.
The safest place to be, were there to be a warning and strong signs of an imminent tsunami, would be on a boat, offshore. Remember, tsunami are not waves on the ocean surface -- they're pressure waves under the surface, until they hit shallow water. (The pressure waves can move at speeds up to 600mph.) At sea, the tsunami may only be an inch or so high, but develop into 30' or far far larger once it hits shallow water.
Ergo, safest to be on a boat offshore. The mainland shorelines have a shelf that slowly drops off to deeper water, but here, of course, we have extremely deep water very close to shore. To be safe, on the mainland you'd have to go many miles offshore, but not so much so here.
It's standard procedure in the event of a tsunami warning for Navy and Coast Guard ships to put to sea for that very reason. Anybody have a view of Pearl Harbor and/or Sand Island? If there's a lot of activity of ships leaving harbor, we should pay closer attention.
I saw the 9pm item on KFVE. Still analyzing the data. Interesting that they showed the activity in the PTWC. Nothing frantic, but obviously busy.
I'm guessing we're safe. But Mother Nature can be a fickle wench.
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