Earthquakes: Measuring Risk on the Nankai Trough
Nankai Trough - A Seismic Hotspot
The Nankai Trough, an area of seismic activity that stretches along Japan's Pacific coast, has been the source of severe earthquakes throughout history.
According to the Coordinating Committee for Earthquake Prediction (CCEP), these earthquakes have occurred every 100 to 200 years.
Japan has issued a tsunami warning in response to a 7.1-magnitude earthquake that struck off the southern coast.
Earthquake Risk and Preparedness
In 2018, Japan revised its earthquake codes after a major earthquake on the Nankai Trough.
Despite these efforts, an earthquake with a magnitude of 8 or higher remains a significant risk in Japan, as evidenced by a recent advisory issued by the weather agency.
Tsunami Risk
The Nankai Trough earthquakes have the potential to generate powerful tsunamis, posing a threat to coastal communities.
Japan has implemented a tsunami warning system to provide early alerts and evacuation instructions.
Monitoring and Early Warning
Japan has invested heavily in earthquake and tsunami monitoring systems to improve preparedness and risk assessment.
These systems provide valuable data for scientists and emergency responders to monitor seismic activity and issue warnings.
International Collaboration
Japan collaborates with other countries to share data and expertise on earthquake and tsunami risk management.
This collaboration helps to improve early warning systems and disaster preparedness efforts worldwide.
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