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What causes a tsunami? An ocean scientist explains the physics of these destructive waves

  • Written by Sally Warner, Assistant Professor of Climate Science, Brandeis University
What causes a tsunami? An ocean scientist explains the physics of these destructive wavesOn Jan. 15, 2022, coastal areas across California were placed under a tsunami warning. Gado via Getty Images

On Jan. 15, 2022, the Hunga Tonga-Hunga Ha’apai volcano in Tonga erupted, sending a tsunami racing across the Pacific Ocean in all directions.

As word of the eruption spread, government agencies on surrounding islands and in places as...

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