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originally posted by: PuterMan
a reply to: AlexanderM
Good find. It is not always Mag 6, 7, 8 etc quakes that cause tsunamis. This was only a Mag 4.
Article in Daily Mail with a video from which the BBC article photo was taken. Much better detail than the BBC offering.
staffer at Caltech mistakenly sent out an alert for a large magnitude-6.8 earthquake off the Santa Barbara coast — from 1925.
The error happened when someone tried to correct the exact location of the Prohibition-era Santa Barbara earthquake, which happened 92 years ago.
The erroneous report went out at around 4:51 p.m. A closer look at the alert, however, would have shown that something was amiss. The time of the alert was dated June 29, 2025 at 7:42 a.m. But it corresponds with a real earthquake that occurred a century earlier.
- 17km NNE of West Yellowstone, Montana Time 2017-06-26 22:35:10 (UTC) Location 44.804°N 111.021°W Depth 7.4 km
The quakes started around 2 a.m. and continued through the early morning; they were still rolling after 5:30 a.m. According to reports from the Nevada Seismological Laboratory, most of the shaking happened in an area roughly ringed by Independence Lake, Donner Lake and Stampede Dam.
The most recent was a magnitude 3.0 magnitude quake near Marietta in Whatcom County.
Source About an hour and a half earlier, a magnitude a 2. 6 earthquake hit in Kitsap County.