New Zealand: Ruapehu lahar finally let loose.

Last weekend, the lahar that has long been expected to flow down Ruapehu finally happened, as the crater lake’s tephra dam finally gave way. Fortunately, due to planning and early alarm systems put in place, no one was injured.

Within a few hours of the first alarms from Ruapehu, teams of volcanologists from Massey University in Palmerston North were already on the way to take precise measurements of the lahar and its flow path.

Also, found this video on YouTube, looking at the lahar as it passed the Tangiwai Railway Bridge.

Thanks to Ron Schott for clueing me in to this event.

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