1931 Napier Earthquake

1931 Napier Earthquake
At 10.47am on Tuesday the 3rd of February 1931, there was an earthquake in Napier, that had many devastating effects on the land and people.

One major effect on the land was vertical movement. This is called horst, and occurs when a portion of the Earths crust is pushed upwards between two fault lines. An example of this occurred when the seafloor just off the coast of Hawkes Bay raised vertically 2.7metres during the earthquake, during the 1931 Napier earthquake.
Another major effect on the land was seismic waves. Seismic waves are the energy sent out by the moving rocks, and are caused by earthquakes. They cause the rocks in the Earth?s surface to move in all different directions. An example of this is the seismic waves sent out by the Napier earthquake, which cracked the land and caused landslides in hilly areas.

The seismic waves also had a major effect on the people of Napier. Seismic waves cause the Earth?s surface to shake, roll and wave, and this can cause a lot of damage and paanic. An example of this is when the movement of the Earths surface caused widespread panic throughout Napier, the damage and collapsing of buildings and houses, broken water and gas pipes, broken power lines, telephone lines and telegraph lines, split roads and the bending of railway and tram lines.

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