Earth Changes‘Megatsunami’ could reach US East Coast in just hours after catastrophic volcano collapse in Spain, scientist claims Posted on November 11, 2026 by Administrator A catastrophic volcano collapse could send a ‘megatsunami’ toward the US East Coast within hours, according to a scientist. The warning comes from volcanologist Professor Bill McGuire, who has been monitoring Cumbre Vieja, a vast volcanic ridge stretching roughly 12 miles and towering nearly 6,400 feet above sea level on La Palma, one of Spain’s Canary Islands off northwest Africa.