When the Ground Shakes: Exploring the Impact of the Magnitude-5 Earthquake near Gnowangerup

Magnitude-5 Earthquake Strikes Near Gnowangerup Rattling Residents Across Southern Western Australia

ABC Great Southern / By John Dobson and Lauren Smith, updated Sun 6 Aug 2023

A magnitude-5 earthquake has struck southern Western Australia, rattling residents across the region. The earthquake‘s epicenter was near Gnowangerup in the state’s Great Southern region. Although early reports stated it as a magnitude-5.6 earthquake, its intensity rating has since been downgraded. The quake hit at 5:34am just north-east of Gnowangerup, about 150 kilometers north of Albany on the state’s south coast.

Minimal Damage and No Injuries Reported

Fortunately, there have been no injuries reported as a result of the earthquake, and only minor damage has been reported. The Department of Fire Safety and Emergency and the local SES have responded promptly to the incident, ensuring the safety and well-being of the affected residents.

The Science of Earthquakes

Earthquakes are natural disasters that can cause immense damage to buildings and infrastructure, trigger tsunamis, and reshape the Earth’s surface with their force. The recent earthquake near Gnowangerup serves as a reminder of the impact that seismic activity can have on communities. Understanding the science behind earthquakes can help us better prepare for future events and mitigate potential risks.

Geoscience Australia’s Analysis

According to Geoscience Australia senior seismologist Hadi Ghasemi, earthquakes in the Gnowangerup area are relatively common. Over the past 20 years, there have been 12 earthquakes with magnitudes of four or larger in the surrounding regions. The recent earthquake was felt widely because it was centered at a shallow depth of just 5 kilometers. The seismic waves needed less distance to reach the surface, resulting in widespread shaking across the region.

Residents Share their Experience

Residents across southern Western Australia, including Perth, Kalgoorlie, and Bunbury, felt the tremors caused by the earthquake. Many reported feeling their houses shake and witnessing objects moving during the event. Scott Roper, a resident of Gnowangerup, described the earthquake as intense and unexpected. The earthquake lasted for approximately 30 seconds, leaving an impression on the affected residents.

Preparation and Response

While earthquakes cannot be predicted with certainty, it is essential for residents in earthquake-prone areas to be prepared. This includes having an emergency plan, securing heavy furniture and items that could become hazards during shaking, and staying informed through official channels such as local authorities and emergency services.

Conclusion

The magnitude-5 earthquake near Gnowangerup serves as a reminder of the unpredictable nature of seismic activity. While the impact of this particular earthquake was relatively minor, it highlights the need for communities to be prepared for future events. By understanding the science behind earthquakes and taking necessary precautions, residents can mitigate potential risks and ensure their safety in the face of such natural disasters.