Home > Earth Science > Plate Tectonics and Inside Earth

What kind of plate boundary occurred in the 1989 Newcastle earthquake?

Answer 1

The suspicion is that the earthquake was not caused by a plate boundary movement but by a collapse in the earth due to coal mining.

The earthquake is thought to have been caused by the collapse of multiple old mining shafts that collapsed on top of one another. It happened in a region where there had been extensive coal mining. There are no plate boundaries close to the epicenter of the earthquake.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Victoria Argento

The 1989 Newcastle earthquake occurred at a convergent plate boundary.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 3

Mila Bautista

The 1989 Newcastle earthquake in Australia occurred due to movement along a strike-slip plate boundary.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.