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Landslides
Landslides involve the movement of large amounts of either earth, rock, sand or mud, or any combination of these. Landslides are infrequent in Logan, however, they are a reality. They can be caused by a major event such as earthquakes, but also by soil saturation from rainfall or seepage, or construction activity.
Before occupying a home or building, check with Logan City Council or neighbours for the area’s history of landslides or potential instability
In steep areas, tell-tale signs for ground movement include:
- disturbed or lumpy hill slopes
- trees tilting
- water seepage
- breaks in the ground
- cracks in walls
- cracks and subsidence in roads and paths
During a landslide
- The start of a landslide may be marked by a loud sound such as a crack, an explosion, a roar or a rumble.
- If indoors, shelter at the least-affected end (down slope) of the building under a strong table or bench (if possible, use a mattress for extra protection).
- Hold on and stay put until all land movement has ceased.
- If outdoors, move quickly across the slope away from the likely path of the landslide, trying to keep clear of trees, powerlines and poles.
After a landslide
- Notify the authorities by dialling 000 if it is an emergency, or Council if less urgent. See Emergency Service Contacts.
- Watch for other landslides.
- Turn off electricity, gas and water.
- Check for broken water, sewerage, gas or electrical mains.
- Check for cracks/damage in roof, walls, chimneys and foundations.
- Evacuate if you feel the building is unsafe.
- Listen to local radio stations (and/or TV stations if power available) and respond to official warnings and advice on damage and service disruptions.
- Be very cautious about removing materials from the lower part of the landslide, or using machinery that creates vibrations, as these activities may cause further movement.
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