Ripple Rock explosion in Seymour Narrows, British Columbia, April 5th, 1958. The largest non-atomic blast set off at the time, 2,750,000 pounds of Nitramex 2H explosives, supplied by Du Pont of Canada, was used to destroy Ripple Rock, a two-peaked underwa

- Image ID: G14TCJ
Ripple Rock explosion in Seymour Narrows, British Columbia, April 5th, 1958. The largest non-atomic blast set off Stock Photo
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Ripple Rock explosion in Seymour Narrows, British Columbia, April 5th, 1958. The largest non-atomic blast set off at the time, 2,750,000 pounds of Nitramex 2H explosives, supplied by Du Pont of Canada, was used to destroy Ripple Rock, a two-peaked underwa
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Image ID: G14TCJ
Ripple Rock explosion in Seymour Narrows, British Columbia, April 5th, 1958. The largest non-atomic blast set off at the time, 2,750,000 pounds of Nitramex 2H explosives, supplied by Du Pont of Canada, was used to destroy Ripple Rock, a two-peaked underwater mountain in the Seymour Narrows that during low tide was only 9 feet under water. After the blast, the depth at low tide became 45 feet.