Date: 16/02/2021 06:01:24
From: mollwollfumble
ID: 1696381
Subject: Japan earthquake

https://www.aljazeera.com/news/2021/2/13/strong-quake-hits-off-japan-coast-triggering-blackouts

No deaths or missing persons, no major damage to roads, rail, engineered buildings.

Injuries (estimates between 74 and 150), damage to goods, a few buildings collapsed. “The most severely affected city is Sōma, located some 40 km north of Fukushima”.

Fires from gas leakages, landslides, uplift and sinking, liquefaction, water pipe bursts, electricity outages.
“At least 311 schools sustained damage such as cracked walls, floors, and broken windows. 71 schools closed”.

Not bad for a magnitude 7.3 earthquake (wiki says 7.1). Japanese earthquake engineering is good.
Remember that the Newcastle earthquake in 1989 was only a magnitude 5.6.

By the way, don’t call it an aftershock. “An aftershock sequence is deemed to have ended when the rate of seismicity drops back to a background level”.

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