THOUSANDS of West Australians woke to an earthquake early this morning, with tremors being felt across the state’s southwest.

The 5.4-magnitude quake struck in Kojonup with residents between Perth and Albany waking up to their homes shaking just after 5am WA time.

“Judy and I were woken up at 5am from our room shaking,” Don Gregg said.

“This was the strongest earthquake we have experienced. A bit scary.”

The Joint Australian Tsunami Warning Centre detected the earthquake and confirmed there was no tsunami threat to the Australian mainland, islands or territories.

Overnight, much of the state experienced smaller rumbles from a separate earthquake.

California style earthquake in Western Australia - whole house shaking for a while solid. #perth #westernaustralia #earthquake #tremor — Matt Ebden (@mattebden) November 8, 2018

Earlier this week, new research from Geoscience Australia showed the threat of tsunamis is one Australia should be taking very seriously.

Its Probabilistic Tsunami Hazard Assessment (PTHA) released this week shows which parts of the country are most likely to be hit and includes data for more than 500,000 possible earthquake and tsunami scenarios in Australia.

The northwest coast of Western Australia is particularly at risk, according to the research, because of proximity to Indonesia’s active and turbulent earthquake zone — making it far more likely to be struck than the rest of the country.

The latest tsunami hazard modelling created by Geoscience Australia updates data from a decade ago, and will be used in disaster risk management, evacuation plans and infrastructure planning.

Although the possibility of a tsunami hitting the WA coast remains low, there have been more than 50 recorded tsunami incidents in Australia since European settlement with the largest impacts in that region, Northern Australia Minister Matt Canavan said in a statement on Monday.