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1755 Lisbon earthquake. Apart from fault lines, submarine volcanoes such as Kick'em Jenny and landslides are sources of tsunamis in the Atlantic.<unk> Apart from fault lines, submarine volcanoes such as Kick'em Jenny and landslides are sources of tsunamis in the Atlantic. Tsunamis are not just known from the sea; the Vajont Dam disaster in 1963 claimed 2000 fatalities and was caused by lake-level tsunami and evidence of past tsunamis is recorded from Lake Tahoe.<unk> Tsunamis are not just known from the sea; the Vajont Dam disaster in 1963 claimed 2000 fatalities and was caused by lake-level tsunami and evidence of past tsunamis is recorded from Lake Tahoe.