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What evidence shows that tectonic movement is still occurring beneath the Red Sea?
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Red Sea
Map showing the Red Sea and the countries surrounding it. The Red Sea is one of the most heavily traveled waterways in the world. It is about 1,200 miles (1,930 km) long, and its maximum width is about 190 miles (305 km).
Tectonic movement continues to shape the Red Sea as Africa and Arabia move apart at an estimated rate of 0.59 to 0.62 inches (15.0 to 15.7 mm) per year. Evidence confirming that this process is still active includes:1
- Volcanic Activity: The region has experienced extensive volcanism within the last 10,000 years.1
- Seismic Activity: Ongoing earthquakes in the area provide direct evidence of crustal movement.1
- Geothermal Features: The presence of hot brines flowing within the sea's trough indicates active geological processes.1
- Spreading Centers: The Red Sea is connected to a system of spreading centers that extend into the Gulf of Aden, marking the continued divergence of the tectonic plates.2