Catalina Island May Cause Tsunami for California

Landslides coming off Catalina Island’s steep slopes could send tsunamis racing toward Los Angeles and Orange County beaches with just a few minutes of warning.

Researchers discovered chaotic deposits that are characteristic of landslides while probing underwater rocks offshore Catalina Island. Seismic waves provide images of underground sediment and rock layers.

The landslides were buried underwater because Catalina Island is sinking.

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