has continued, eventually reaching a key river, where it has devastated wildlife and threatened the drinking water supply for hundreds of thousands of people downstream.
The collapse happened due to mudflow
caused by heavy rain in the region, Chinese news agency Xinhua reported.
areas, build channels or deflection wall to direct the flow around buildings.
The authors propose that the mud, after it erupted from the ground, oozed down the slope in a way unlike any mudflow
means a river of liquid and flowing mud on the surfaces of normally dry land, as when earth is carried by a current of water.
Among the 34 included papers, topics discussed are methods of population warning and communication in the case of landslips, large artificial water reservoirs and dams as critical risk objects in Armenia, prevention and intervention in the case of catastrophes in the Moldava area of Romania, mudflow
protection in the city of Yerevan, and licensing and controlling mining operations to prevent emergencies.
Volcanologists plan to install three so-called ''acoustic flow measurement'' devices in rivers originating from the volcano for early detection of volcanic mudflow
In 1595, 636 people were killed after a mudflow
swept down the mountainside.
Land-use zoning, professional inspections, and proper design can minimize many landslide, mudflow
, and debris flow problems.
He said that although the ash was unlikely to be of direct danger to residents, there was the risk it could turn into a deadly mudflow
, as happened during the last eruption in 2006, when hundreds of people were swept away.
It was not huge in size, but did include a mudflow
of about 20 cubic yards that raced over the highway midmorning, he said.
Most of us have seen news footage of a landslide or mudflow
impacting roads or homes, triggered by a large rain event, seasonal wet conditions, or flooding," says Benjamin Rivers, a geotechnical engineer with the Federal Highway Administration (FHWA).