Hannah Chin
speaker
696 appearances
10 recordings
1 series
first heard Nov 2025
last heard 17 Aug
Hannah Chin’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 10 in all, peaking in Aug 2026 with 2.
Appearances
And second, there's also more specific records that we have, human records from somewhere clear across the other side of the world, Japan.
Yeah, exactly.
So when a big earthquake hits there, it's often followed by a tsunami wave.
It goes like earthquake, tsunami, earthquake, tsunami.
But in the year 1700 on January 26th, Japanese scholars have all of these records of what they call the quote unquote orphan tsunami.
Orphan because they didn't know where it came from.
It just didn't seem to have a parent earthquake preceding it.
So this is Chris again, the seismologist.
He says the Japanese records were really accurate, down to the height of the flooding and the amount of the destruction.
And using these records, it was possible for scientists to do some detective work and figure out where that big wave came from.
Which, Emily, again, is that fault line right off the Portland coast.
So that research is how we know that the last great earthquake in the Pacific Northwest was January 26th, the year 1700, about 9 p.m.
That is so precise.
No, it's really cool.
And scientists have done more modeling.
They've researched earthquakes in the area further and further back.
They've talked to indigenous people who
have told stories about these quakes for generations, and they've realized that Cascadia has these really big earthquakes, usually magnitude nines, every 500 years on average.
So this is what I thought too, but Diego told me it's not that simple.
So we could be due for a major earthquake, or we could be fine for the next 500 plus years.
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