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The fault plane runs through the famous Ring of Fire, a volcanic region containing 75 percent of the Earth’s volcanoes and where 90 percent of earthquakes occur. Only recently, scientists learned how the Weber Deep actually formed. Geologists analyzed maps of the Pacific Ocean floor in the Banda Sea region and discovered rocks in the bottom of the sea were cut by hundreds of straight parallel lines. They think that a massive piece of the Earth's crust, the size of Belgium, was ripped apart by a fault in the oceanic plates, forming the deep depression known as Weber Deep in the ocean floor.

The ocean abyss Weber Deep was caused by a fault that ripped through the ocean floor. It is in front of the curved chain of the volcanic Banda Islands of Indonesia.

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