Large earthquakes result from sudden movements along tectonic plates. Major quakes can destroy cities, infrastructure, and trigger secondary disasters like tsunamis and landslides.
Events such as the 2011 Tōhoku earthquake and tsunami show how widespread damage can be. Economic systems and supply chains can be disrupted, especially if key regions are affected.
Multiple large earthquakes in critical areas could strain global disaster response systems. However, they are unlikely to cause human extinction, with the primary risk being severe but localized or regional collapse.
