Almora Fault

Data indicates an increase in earthquake activity in 2023 was mainly attributed to the activation of the Almora fault.

Almora Fault – It is located in Western Nepal.
It is a high angle west-northwest-east-southeast to northwest-southeast trending tectonic plane.
It separates the inner lesser Himalayas in the north from outer lesser Himalayas in the south.

A fault

It is a fracture or zone of fractures between two blocks of rock.
Movement – It allow the blocks to move relative to each other which may occur rapidly, in the form of an earthquake or may occur slowly, in the form of creep.
Range - Few millimetres to thousands of kilometers.

Activation of Almora fault- 3 significant earthquakes above 5.8 magnitude occurred in 2023 leading to an increased frequency of earthquakes in 2023.

There have been 97 earthquakes in 2023 of magnitude 3.0 to 3,9 compared to 41 in 2022.

Agency responsible - The National Disaster Management Authority (NDMA) is responsible for taking precautionary measures and response to earthquake related incidents.

Nepal and the adjoining northern part of India, located near the active faults of the Himalayan region, are highly seismically active areas prone to frequent earthquakes due to collision tectonics, where the Indian plate subducts beneath the Eurasian Plate.

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