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19 June 2018

Mars: a landslide triggered by a small meteoroid impact

The University of Arizona has released HiRISE imagery from Mars showing a 1 km long landslide triggered by a meteoroid impact about ten years ago

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18 June 2018

Hidroituango: a substantial step towards reducing the immediate risk

Yesterday the operators of the dam at Hidroituango announced that the crest of the structure has reached 415 m. This is a substantial step towards increasing the safety of the site

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15 June 2018

Kilauea volcano: large-scale slumping on the rim of Halema‘uma‘u crater

As a part of the ongoing eruption at Kilauea volcano in Hawaii large-scale slumping is occurring around the margins of Halema‘uma‘u crater. This is perhaps the finest example of non-rotational slumping that I have ever seen.

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14 June 2018

Rattlesnake Ridge: new drone footage of the development of the landslide

The WADNR has released a new drone video, collected on 31st May 2018, showing the current state of the large, creeping Rattlesnake Ridge landslide at Union Gap in Washington State, USA

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12 June 2018

The Rohingya refugees: landslides start to take lives as the monsoon arrives

The Rohinghya refugees: landslides start to take lives as the monsoon arrives For the last few months there has been increasing concern about the plight of many of the Rohingya refugees who have been forced out of Burma – Myanmar – by the military, and are now living in makeshift camps in Bangladesh.  The numbers are vast – some estimates suggest over 700,000 people.  There is particular concern about the …

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11 June 2018

Hidroituango – continued small landslides, and proposals for a way forward

Yesterday a small landslide at the Hidroituango dam site led to the evacuation of some of the workers on the site. Operations continue to manage the situation whilst waiting for the end of the rainy season, and an expected fall in the river level

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6 June 2018

Hidroituango: the potential for extremely large landslides?

News reports from Colombia say that an American technical report (possibly by USACE) suggests that landslides of up to 40 million cubic metres are possible at Hidroituango. As the report is not publicly available it is hard to know how to interpret these reports

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5 June 2018

Hidroituango – an increase in movement rate

Reports in the last few hours suggest that the landslide at the Hidroituango dam site has accelerated, and has now exceeded the 10 mm per hour warning threshold. Meanwhile, three scenarios for failure of the dam have been described by the international advisors.

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4 June 2018

Hidroituango – continued slope movements and low volume seepage from the dam

In the last 24 hours there have been further developments at the Hidroituango dam site in Colombia. Monitoring suggests that movements of the slope continue, whilst concerns are being raised about low volume seepage from the dam

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3 June 2018

The Hidroituango crisis: new landslides threaten the site

In Colombia the Hidroituango crisis has deepened as new landslides have started to form close to the dam site, as shown by tension cracks in the slopes and cracks in the tunnels. The level of risk has risen, and 25,000 people are now displaced

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