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Watch the seismic waves from today's magnitude 7.3 Alaska earthquake ripple across seismic stations in North America. More ➡️ loom.ly/kaJp5I0

Fascinating. They seem to move faster diagonally than horizontally but that might be a perspective thing.

Waves follow the great circle path (closest distance between two points on a sphere), so the flat map projection warps that perspective a bit.

17/7/25, 1:33 pm0 reposts3 likes

Thank you for your explanation. That explains that then. Ta muchly. 😊