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From https://www.tsunami.gov/events/PHEB/2024/12/05/24340001/2/WE... TSUNAMI THREAT FORECAST...UPDATED --------------------------------- * THERE IS NO LONGER A TSUNAMI THREAT FROM THIS EARTHQUAKE.
Edit:
Now as of "1154 AM PST Thu Dec 5 2024" the warning is canceled:
https://www.tsunami.gov/events/PAAQ/2024/12/05/so1aq0/3/WEAK...
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…
Appears to be due to this M7.0 earthquake off the coast of California near Eureka, CA: https://earthquake.usgs.gov/earthquakes/eventpage/us7000nw7b... (early estimates of magnitude tend to vary; looks like magnitude estimates are currently ranging from 6.0 to 7.3)
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i believe they have monitoring deep ocean buoys
How do these detect tsunamis? They must be observing elevation changes, right? Is that GPS based?
But at sea there’s not much to obscure satellite signals so I believe resolving buoy position was a solved problem back when gps car navigation still sucked balls because tall buildings make everything harder. You need a lot more satellites to see three or four at the same moment.
these systems were set up about 20 years ago after the Thailand tsunami. Have there been notable results from their application?
They also released a warning before the 2009 tsunami in American Samoa but I'm not sure how effective it was due to the short timeframe and speed of disseminating the info
Based on the location and focal mechanism of the earthquake ( https://earthquake.usgs.gov/earthquakes/eventpage/nc75095651... ), this is a strike-slip earthquake on the plate boundary between the Pacific and Gorda/Juan de Fuca plates. Strike-slip earthquakes occur when two plates slide beside each other during an earthquake, usually along a steeply-dipping if not vertical fault. These kinds of earthquakes almost neve…
Based on the location and focal mechanism of the earthquake ( https://earthquake.usgs.gov/earthquakes/eventpage/nc75095651... ), this is a strike-slip earthquake on the plate boundary between the Pacific and Gorda/Juan de Fuca plates. Strike-slip earthquakes occur when two plates slide beside each other during an earthquake, usually along a steeply-dipping if not vertical fault. These kinds of earthquakes almost neve…
And then there’s this tsunami alert today.
From https://www.tsunami.gov/events/PHEB/2024/12/05/24340001/2/WE... TSUNAMI THREAT FORECAST...UPDATED --------------------------------- * THERE IS NO LONGER A TSUNAMI THREAT FROM THIS EARTHQUAKE.
This message is for Hawaii. Edit: Now as of "1154 AM PST Thu Dec 5 2024" the warning is canceled: https://www.tsunami.gov/events/PAAQ/2024/12/05/so1aq0/3/WEAK...