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現在の単語数: 274語

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作成日: 2025/12/23 03:40

更新日: 2025/12/23 09:02

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- A recent analysis of a 2025 earthquake near Russia's Kamchatka Peninsula suggests magnitude 9 "megathrust" quakes could occur more frequently than previously believed.
- Researchers found evidence of "overshoot," where earthquake slip exceeded equilibrium stress, releasing strain from both the recent 73 years and a prior 1952 event.
- This phenomenon poses a potential risk for other areas like the Nankai Trough and Sagami Trough, highlighting the need for continued vigilance and preparedness.

A: Hey! Did you hear about something crazy happening near Russia?

B: No! What’s up?

A: Some Japanese researchers studied that big earthquake near Kamchatka. Remember, the one in 2025?

B: Vaguely... what did they find?

A: Apparently, they think huge earthquakes like that could happen more often than we thought!

B: Really? Like, not every hundred years?

A: Exactly! They looked at the 2025 quake and the one in 1952. They’re really close together.

B: Wow! So, what does that mean?

A: It's something they call "overshoot."  It means the earthquake released stress from a long time ago… and even some stress that *didn't* get released in 1952!

B: That’s a big word! Overshoot?

A: Yeah, basically it means the earthquake was bigger than it should have been based on how long it had been since the last one.

B: Oh, like the Tohoku quake in 2011?

A: Yep! Same idea.

B: So, we shouldn’t feel safe then?

A: Professor Yagi said exactly that! We can't let our guard down.

B: That’s a bit scary! I wonder if it could happen near us?

A: He mentioned the Nankai Trough and other places too. Just gotta be prepared, I guess.

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