ice volcano

Ontario police are warning residents to watch out for dangerous ice volcanoes

If you thought the term "volcano" was limited to land formations that spew scorching magma from under the earth's crust, you'll want to think again, because Ontario is actually home to some volcanoes of its own, and they're of a very different — nay, completely opposite — type.

Authorities are asking people in the province who live along the Great Lakes to stay off the frozen water and keep an eye out for the peculiar and little-known phenomena.

Similar to how volcanoes are caused by clashing tectonic plates, ice volcanoes occur when moving waters push shelf ice against itself and/or the shoreline, leading to a ridge, often close to land.

Though they may appear like a frozen snowbank or simple ice accumulation, they often have hidden holes in the centre that lead directly to the water below, which can continue to form new cracks and holes if active.

Thus the hazards, though not actual volcanoes, can be just as fatal for anyone who encounters them, as they are easy to miss, fall into and get trapped inside — the result of which would almost surely be drowning in frigid waters after a very difficult, dangerous and futile rescue operation.

ice volcanoMembers of multiple community organizations and Facebook groups, the Weather Network and even Halton Police have issued cautions in recent days, making the public aware of how dangerous beaches along Lake Ontario can be during a deep freeze like the one we're currently in.

Almost all include a handy and widely-circulated cross-section infographic by one Tom Gill detailing how the volcanoes work.

Though a representative for the Toronto Police Service told blogTO that no incidents involving ice volcanoes have been reported yet this month, they did say that "the shelves do form and do exist in Toronto."

And, some on social media have cited unconfirmed reports of people and animals falling through in the Beaches neighbourhood.

Though some individuals have ventured onto the very frozen Toronto Harbour in recent days, as Halton Police have said, no natural ice is guaranteed to be stable or safe, and residents are best to stay away.

This is especially true when it is hard to determine where the land ends and the water begins.

Instead, the strange mounds are best enjoyed from afar, and can even spout water when it is choppy undernath.

Lead photo by

Iulia Turda on Lake Ontario

Latest Videos

Latest Videos

Join the conversation Load comments

Latest in City

More daily ferry trips now available to Toronto Islands but people question schedule cuts

Viral thread compares Toronto's transit system to New York

Terrifying videos show train passing through Ontario city while completely on fire

Breathtaking cherry blossoms draw massive crowds to High Park in Toronto

Toronto ranked among the best cities in the world for millennials

Toronto dog helps save poisoned fox's life through rare procedure

Toronto reacts with outrage and generosity after Umar Zameer acquitted for murder

Canadians react to Trudeau's proposal that rent 'count towards your credit score'