Massive landslide and avalanche also forced suspension of rescue works in the popular trekking area of Langtang, where Nepal Army's rescue team has taken out 90 dead bodies, including nine foreigners, so far.
According to some media reports, as many as 120 bodies have been pulled out and rescuers who were searching for bodies have moved to safe places.
Lieutenant Colonel Anup Jung Thapa said the rescue works was disrupted due to huge piles of frequent avalanche in and around the area.
A 4.2-magnitude tremor was recorded at 1.50 AM with its epicentre at Sindhupalchowk district, 100 km east of Kathmandu, one of the worst-affected districts.
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Another 4-magnitude tremor was recorded at 2.44 AM with epicentre at Udaypur district.
The third tremor was of 4.4-magnitude which struck at 6.34 AM with epicentre at Sindhupalchowk/Tibet, according to the National Seismological Centre, Kathmandu.
No damage due to the tremors was reported so far. However, they sent a fresh wave of fear and panic among the people who have been forced to stay in open spaces for the past two weeks.
Meanwhile, the death toll from the April 25 temblor, the country's worst in over 80 years, reached 8,019 while the number of injured stands at 16,033, according to Nepal Police.
The UN has revised its flash appeal amount to USD 423 million to carry out humanitarian relief in the country.
The global body has received just 10 per cent of the appeal amount even as the number of houses being destroyed has reached nearly 3 lakh, the UN said.
"As of May 8, Government said the earthquake destroyed 2,88,798 houses and damaged 2,54,112 houses," the UN's Office for the Coordination of Humanitarian Affairs (OCHA) said, adding 1,60,786 houses were destroyed by May 1, nearly double the number of households wrecked in the deadly 1934 temblor.