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Experts warn fault near Kathmandu could produce magnitude 8 earthquake

Dec, 7It’s been just over a year since a devastating earthquake ripped through Nepal, killing 9,000 people and destroying some 600,000 structures.
Now, experts warn Kathmandu and other areas along the Himalayan Frontal Fault could be due for an even more powerful event.
Field research and analysis following the 2015 Nepal earthquake suggests a 124-mile stretch of the fault could be in the stages leading up to a massive earthquake of magnitude 8 or greater, capable of producing fractures 15-30 feet high.
An international team, including researchers from the University of Nevada, Reno, conducted several hands-on analyses of the fault lines in the Kathmandu region since last year¿s earthquake
An international team, including researchers from the University of Nevada, Reno, conducted several hands-on analyses of the fault lines in the Kathmandu region since last year’s earthquake
WHAT THEY FOUND
Researchers dug two deep trenches near the mouths of major rivers at Tribeni and Bagmati.
In Tribeni, roughly 124 miles (200 km) south of Kathmandu, they discovered a scarp – a steep bank – of at least 15 feet (5m) vertical separation between 1221 and 1262 AD.
And at the Bagmati site, they found a vertical separation of about 30 feet (10m) or more, formed between 1031 and 1321 AD.
The findings indicate the 124-mile stretch of the fault could be in the stages leading up to a massive earthquake of magnitude 8 or greater, capable of producing fractures 15-30 feet high.
Researchers say the event would be more destructive than the 2015 Nepal earthquake.
According to the researchers, the deadly earthquake and aftershocks last year may even be a ‘warning’ of a more powerful event to come.
An international team, including researchers from the University of Nevada, Reno, conducted several hands-on analyses of the fault lines in the Kathmandu region since last year’s earthquake.
Results of the study are published to the journal Earth and Planetary Science Letters.
The researchers dug two deep trenches near the mouths of major rivers at Tribeni and Bagmati, looking at the structural and radiocarbon relationships, along with the layers of rocks and soil, across the fault in areas where it has produced steep banks in soil deposited by the rivers.
This revealed evidence of earthquake displacement dating back thousands of years.

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