An overview of slow slip (and tremor) in all of Cascadia - more study needed.
Tune in May 18, 2020 at 6:30 pm PDT (or afterward) to see the PNSN anniversary presentations on: https://www.youtube.com/user/pnsnseisinfo
Three hundred and twenty years ago, thousands of coastal residents settled in for the night on January 26th 1700, when suddenly the ground began to shake.
A magnitude 3.4 earthquake near Fall City the evening of Dec. 18 has been followed by a few aftershocks, one of which had a magnitude of 3.0.
The PNSN plans to monitor the MLS Cup Finals in Seattle on Sunday, Nov 10, 2019. Return to this blog for updates as the experiment is installed and gets underway.
Help us figure out how Seattle’s unique geography affects earthquake shaking.
Additional Info is available for this earthquake, via its event page.
There is a bit of follow-on information available about this earthquake and it's aftershocks.
The swarm that started late on July 7 really got hopping on July 9 at about 9am PDT (16:00Z). This swarm looks similar to previous ones near Mount Hood.
A completely redesigned tremor location program and web interface is now available. The hourly tremor plots have been discontinued.
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