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Are Japan, California & Venezuela quakes connected? What the Ring of Fire has to do with it or not
Stretching from the western coasts of North and South America through Alaska, Japan, the Philippines, Indonesia and New Zealand, the Ring of Fire is home to roughly 75% of the world's active volcanoes and about 90% of all recorded earthquakes.
SUMMARY
- The Ring of Fire is a horseshoe-shaped zone that encircles much of the Pacific Ocean.
- Many parts of the Ring of Fire are also subduction zones, where one tectonic plate is forced beneath another.
- These zones are particularly prone to producing powerful earthquakes and volcanic eruptions.
While the earthquakes occurred thousands of kilometres apart, two of them — in Japan and California — took place within the Pacific Ring of Fire, a vast belt of seismic and volcanic activity that accounts for the majority of the world's earthquakes. The Venezuelan quake, however, originated from a different tectonic setting altogether.
What is the Ring of Fire?
The Ring of Fire is a horseshoe-shaped zone that encircles much of the Pacific Ocean. Stretching from the western coasts of North and South America through Alaska, Japan, the Philippines, Indonesia and New Zealand, it is home to roughly 75% of the world's active volcanoes and about 90% of all recorded earthquakes.
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The region sits atop a complex network of tectonic plate boundaries where massive slabs of the Earth's crust continuously collide, separate or slide past one another.
Why do so many earthquakes occur there?
The Earth's outer layer is divided into several tectonic plates that are constantly moving, albeit very slowly. Around the Ring of Fire, plates such as the Pacific Plate, Nazca Plate and Philippine Sea Plate interact with neighbouring plates, creating enormous geological stress.
When these plates become locked due to friction, pressure builds over time. Eventually, the accumulated energy is released suddenly as the plates shift, generating seismic waves that are felt as earthquakes.
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Many parts of the Ring of Fire are also subduction zones, where one tectonic plate is forced beneath another and sinks into the Earth's mantle. These zones are particularly prone to producing powerful earthquakes and volcanic eruptions.
