What are the warning signs of natural hazards?

Warning signs of natural hazards include unusual weather patterns, ground shaking, water level changes, and animal behaviour changes.

Natural hazards can often be predicted by observing specific warning signs. For instance, unusual weather patterns such as sudden, intense rainfall or prolonged dry spells can indicate the potential for floods or droughts. Meteorologists use advanced technology to track these patterns and issue warnings to the public.

Ground shaking is a clear sign of an impending earthquake. Even minor tremors, known as foreshocks, can precede a larger seismic event. Seismologists monitor these tremors using seismographs to predict the likelihood of a major earthquake. Additionally, changes in the Earth's crust, such as cracks or bulges, can also signal volcanic activity. Volcanologists keep a close eye on these signs to provide early warnings.

Water level changes are another important indicator. A sudden drop in sea level can precede a tsunami, giving coastal communities crucial time to evacuate. Similarly, rising river levels can signal an impending flood. Hydrologists monitor these changes to provide timely alerts.

Animal behaviour changes can also serve as natural hazard warnings. Animals often sense danger before humans do. For example, unusual animal migration patterns or erratic behaviour can indicate an approaching natural disaster. Historical accounts have noted that animals often flee areas before earthquakes or tsunamis occur.

By understanding and recognising these warning signs, communities can better prepare for natural hazards, potentially saving lives and reducing damage.