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shinji.miyoki - 8:49 Thursday 11 May 2023 (25192) Print this report
Liquid N2 truck effect on IXV seismometer in the past?

[Washimi-kun, posted by miyoki]

To estimate any seismic noise effect on the corner station due to the liquid N2 truck transportation through the SK access tunnel in the past days, Washimi-kun checks the IXV-Z direction time-spectrum around 09:45~10:30 that was announced as the truck traffic time on 22/Oct/18, 22/Dec/6/27, 23/Jan/13/24, 23/Mar/7/24, and 23/Apr/11/25(Noto EQ swarm duration).

We cannot recognize remarkable and characteristic noises.   

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tatsuki.washimi - 11:04 Tuesday 16 May 2023 (25255) Print this report

This morning, from 10:00 to 10:06 JST, an LN2 truck went into the SK tunnel.

I checked its effect on the strain and the seismometer signal.

No significant signal was found.

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