The explosion took place at 9:31:02 am on 5 April 1958. 635,000 metric tons of rock and water were displaced by the explosion, spewing debris at least 300 metres in the air which fell on land on either side of the narrows.

Apr 2, 2018 · B.C.'s deadly Ripple Rock is blown up in the world's largest non-nuclear peacetime explosion. Despite presenting itself as a major marine hazard, many in B.C. opposed Ripple Rock's...

Ripple Rock, an underwater mountain within Seymour Narrows near Campbell River BC, was a marine hazard responsible for more than 20 large vessels and at least 100 smaller vessels sinking or being damaged. Before its destruction in 1958, Ripple Rock claimed at least 114 lives.

Apr 5, 2017 · It took almost 1400 tons of explosives to shift the peak of Ripple Mountain. On this day in 1958, Canadians gathered around their television sets to watch as an underwater mountain on the...

Apr 5, 2023 · Its deadliest feature: the twin peaks of Ripple Rock, lurking just below the surface of the swirling water. “Old Rip” had menaced shipping for centuries, sinking or damaging 119 vessels and claiming almost as many lives. But on April 5, 1958, the world’s largest non-nuclear peacetime explosion pulled Ripple Rock’s teeth forever.

Jun 20, 2022 · In 1958, the largest non-atomic explosion blew up 635, 000 tons of water and rock over Seymour Narrows. This ENOURMOUS explosion reached heights of 305 metres (1000 feet)! This massive feat of engineering and ingenuity refers to the demolition of the underwater mountain known as Ripple Rock.

Jan 27, 2025 · A pair of dangerous underwater peaks jointly called Ripple Rock created severe whirlpools in the waters near Vancouver Island, sinking numerous ships and claiming more than 100 lives. It took the largest non-nuclear explosion in history to finally end the threat.

Over the years, this underwater obstruction in Seymour Narrows, a crucial West Coast transportation corridor, had damaged or sunk 14 large vessels and at least 100 smaller ones, leading to the loss of 114 lives.

Apr 5, 2024 · From 1955-1958, engineers tunneled below nearby Maude Island, under the ocean floor, and up into Ripple Rock. They packed the peak with explosives and on the morning of April 5, 1958, blew it up in one of the biggest non-nuclear explosions ever recorded.

Feb 18, 2018 · Like a malevolent monster awaiting its next victim, Ripple Rock lay hidden just 9 feet below the surface of the Seymour Narrows between Vancouver Island and the Canadian mainland, the waters...