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Tsunami Warning for Northern California

tsunami.gov

41–50 of 177 posts

Re: Tsunami Warning for Northern California

#42
post #31

This webcam should let us know in a few minutes if this is real: https://www.pacificblue.biz/noyo-harbor-webcam/ Edit: arrival time has come and gone. No indication of movement in water level.

I'm seeing lots of boats exiting the harbor, presumably to enter the ocean where any tsunami effects will be lessened?

typically, yes. Tsunamis are usually unnoticeable away from the shore. They aren't like a massive, traveling, cresting wave. They are usually a pulse of high energy that can move a lot of water just a few feet, which can be devastating when it reaches the shore because it is relentless as it moves up to that height.

Re: Tsunami Warning for Northern California

#43

Interesting observation: I am in a circumstance where I am transitioning from an Android phone (Samsung Galaxy) to a iPhone. I observed that android phone alerted me about an earthquake and that I should be ready to feel tremors. To my surprise as I was pondering how this system works - especially wrt to latency - where it alerts me head of time, I then fell small tremors in 2 or 3 seconds after the alert. The tremor…

Sounds like it could have just been a quirk. I've had a couple of iPhone earthquake alerts around 0-2 seconds before feeling it, so it's definitely not a general problem with iPhones. I've also had many more of the AMBER alerts and test broadcast alerts where everyone in the room receives them at the same instant regardless of phone manufacturer.

Re: Tsunami Warning for Northern California

#44

FORECASTS OF TSUNAMI ACTIVITY ----------------------------- * Tsunami activity is forecasted to start at the following locations at the specified times. FORECAST START SITE OF TSUNAMI ---- ---------- * California Fort Bragg 1110 PST Dec 5 Crescent City 1120 PST Dec 5 San Francisco 1210 PST Dec 5 * Oregon Port Orford 1120 PST Dec 5 Brookings 1125 PST Dec 5 Charleston 1140 PST Dec 5 via https://www.tsunami.gov/events/P…

I should have hit Fort Bragg by now but I'm not seeing that on https://www.noyocenter.org/live-web-cam

The earthquake was real but it is probably really hard to predict if that leads to a tsunami.

Re: Tsunami Warning for Northern California

#46

Interesting observation: I am in a circumstance where I am transitioning from an Android phone (Samsung Galaxy) to a iPhone. I observed that android phone alerted me about an earthquake and that I should be ready to feel tremors. To my surprise as I was pondering how this system works - especially wrt to latency - where it alerts me head of time, I then fell small tremors in 2 or 3 seconds after the alert. The tremor…

The Verge's Vergecast podcast did a pretty in-depth story in the second half of an episode about this that was fascinating [0]

tldl: I do think the recommendation was installing the official ShakeAlert app

[0] https://podcasts.apple.com/mu/podcast/two-possible-futures-f...

Re: Tsunami Warning for Northern California

#49

Interesting observation: I am in a circumstance where I am transitioning from an Android phone (Samsung Galaxy) to a iPhone. I observed that android phone alerted me about an earthquake and that I should be ready to feel tremors. To my surprise as I was pondering how this system works - especially wrt to latency - where it alerts me head of time, I then fell small tremors in 2 or 3 seconds after the alert. The tremor…

I have an android (pixel 7), and I got not alert for earthquake or tsunami. IOS users around me got alerted for the magnitude 7, not entirely sure about the tsunami

Re: Tsunami Warning for Northern California

#50
post #21

Cool to see that Google Docs gives me this warning too https://imgur.com/a/B6qSboV

That's it? "Tsunami Warning", no context? no advice on what to do to avoid panic?

I would suggest that this is based on location of the IP address. I'm not getting it on the other side of the world.
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