SEATTLE -- T-Mobile Park will host a winner-take-all playoff game for the first time in 24 years Friday night. The Mariners are ready . The fans are ready.

And the seismologists are ready.

Friday morning, a group of scientists from the Pacific Northwest Seismic Network (PNSN) got early access to the ballpark to install a seismometer at field level, to see just how powerful the packed crowd could get in Game 5 of the ALDS against the Tigers.

After all, Cal Raleigh said he could feel the ground shaking when he rounded third base on Julio Rodríguez’s go-ahead double in Game 2. Now, we’ll know for real.

Seattle fans have built up a reputation for noise. Across the street from T-Mobile Park, the Seahawks most memorably had the “Beast Quake” in 2011, when Marshawn Lynch ran through the Sai

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