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Coastlines

Coastlines determine the perimeter of a country, state, island, or city. They also form beaches.

787 Questions

Where is the Big Sur Historical Society in Big Sur California located?

The address of the Big Sur Historical Society is: Po Box 176, Big Sur, CA 93920

Why are the largest pebbles found at the back of the beach?

the pebbles at the front of the beach get eroded by the water

What is the speed of tsunamis?

The speed of a tsunami differs between each. For instance, March 11th a tsunami hit Japan with a magnificent magnitude of 9.0. That triggered a tsunami with 10-metre-highwaves that reached the U.S coast.

Tsunami waves are long-period of sea produced by the sudden or abrupt movement of large volumes of water (it mostly occurs after earthquakes.) They can occur in lakes or in the seas.

Wave crests can surpass 100 kilometres (62 miles), and the wave period can vary from 5 minutes to 1 hour. The travel time depends on the water depth. Tsunami waves can be very long. They can be up to 60 miles (100 kilometres) and be as far as 1 hour apart.

How big do tsunamis get?

In deep water, it gets around 1 m tall, but in shores, the waves usually get around 30 m in the air.