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M6.6 quake hits off Miyagi Pref; no tsunami threat

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Felt it in Nagoya..

-1 ( +4 / -5 )

It wasn't too big here, but my god, did it last long.

4 ( +6 / -2 )

Pukey2Today  01:37 pm JST

It wasn't too big here, but my god, did it last long.

"here" being where?

2 ( +3 / -1 )

Was outside at my son's baseball and everyone's phone started giving the early warning. Had never heard that many phones at one time.

Game was paused for 5 minutes to make sure there was no tsumami warning.

-1 ( +1 / -2 )

This earthquake was detected by the garden seismometer in England 11 minutes later, arriving via the North Pole and Siberia. Normally a shallow quake take 13 minutes but at a depth of 60 km, the rocks being denser it is faster. It’s a small world we live in.

5 ( +8 / -3 )

It felt stronger than that considering the distance and the magnitude, hopefully no big aftershock to follow.

0 ( +1 / -1 )

@gokoro, are you sure it was 11 minutes? ive been trying to work out what the speed the shock wave was traveling at.

0 ( +0 / -0 )

These numbers are rounded off, the average time for a shallow quake from Japan is 13.6 minutes. In this case the P and S wave they are 10 8 minute apart. The P and S wave travel in a circular path though the core due to the increase in density with depth. The surface wave arrived 27.5 minutes after the P wave.

0 ( +0 / -0 )

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