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Megaquake

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Japan braces for bigger quake as tsunami alerts ease after 7.7-magnitude tremor
world1 month ago

Japan braces for bigger quake as tsunami alerts ease after 7.7-magnitude tremor

A powerful 7.7-magnitude earthquake off Japan’s northeast coast triggered tsunami warnings that prompted evacuations and railway disruptions; warnings were downgraded to advisories as waves subsided, but authorities warned the risk of a larger 8.0+ quake could persist for about a week, with chances running about ten times higher than normal. No deaths have been reported, though some injuries and power outages occurred, and officials urged continued readiness amid memories of the 2011 Tohoku disaster.

via The Independent|
#earthquake#evacuations#japan
Seattle's Double Earthquake Threat: Two Fault Lines Capable of a Megaquake
natural-disasters2 years ago

Seattle's Double Earthquake Threat: Two Fault Lines Capable of a Megaquake

Scientists have discovered two fault lines in the Puget Sound region, including the Seattle Fault Zone and the Saddle Mountain Fault Zone, capable of causing a 7.8-magnitude earthquake similar to the one that occurred 1,100 years ago. This ancient megaquake triggered landslides and a local tsunami, posing a significant threat to the region's four million residents. A potential earthquake of this magnitude could result in the loss of over 1,600 lives, destruction of nearly 10,000 buildings, and economic losses of $50 billion. The study suggests that simultaneous ruptures of these fault lines are possible, emphasizing the need for preparedness and mitigation measures in the Seattle area.

via Daily Mail|
#earthquake#fault-lines#megaquake