{"id":5680,"date":"2012-12-21T10:10:59","date_gmt":"2012-12-21T10:10:59","guid":{"rendered":"http:\/\/blogs.agu.org\/landslideblog\/?page_id=5680"},"modified":"2012-12-21T10:11:00","modified_gmt":"2012-12-21T10:11:00","slug":"the-raw-power-of-the-lahar-a-volcanic-landslide-a-new-video-of-three-lahars-from-japan","status":"publish","type":"page","link":"https:\/\/blogs.agu.org\/landslideblog\/the-raw-power-of-the-lahar-a-volcanic-landslide-a-new-video-of-three-lahars-from-japan\/","title":{"rendered":"The raw power of the lahar (a volcanic landslide) – a new video of three lahars from Japan"},"content":{"rendered":"

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Lahars<\/a> are extraordinarily energetic debris flows that originate in volcanic materials.\u00a0 They are one of the most poorly understood volcanic processes, even though they are exceptionally destructive.\u00a0 Lahars have been responsible for thousands of deaths in the last century – the 1985 lahar from Nevado del Ruiz in Colombia is believed to have killed over 23,000 people for example<\/a>.\u00a0 Those sorts of numbers are hard to believe unless you have seen the nature of these landslides.\u00a0 To this end, a new video has appeared on Youtube<\/a> showing footage from three lahar events in Japan.\u00a0 All appear to have occurred in the 1990s.\u00a0 The third in the sequence is probably the most impressive (and is the source of the screenshot above):<\/p>\n