Afghans stand by the bodies of relatives killed in an earthquake in Gayan village, in Paktika province, on Thursday. AP

In the aftermath of the devastating 6.1-magnitude earthquake in Afghanistan's Paktika province that killed at least 1,000 people, the country's Taliban-led government has appealed for international aid, the media reported on Thursday.

The earthquake on Wednesday, deemed to be the deadliest to strike the country in two decades, and subsequent landslides also injured 1,500 people in the two districts of Gayan and Barmal.

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The epicentre was 44 km from Khost city and tremors were felt as far away as Pakistan and India.

Meanwhile, the Japanese government plans to provide assistance to Afghanistan, a government spokesperson said on Thursday.

Afghans evacuate wounded in an earthquake in the province of Paktika, eastern Afghanistan, on Wednesday. AP

Deputy Chief Cabinet Secretary Seiji Kihara told a regular news conference that the government was coordinating moves to "provide necessary support promptly" as well as assessing the situation to grasp local needs.

In a statement, senior Taliban official Abdul Qahar Balkhi said the regime was "financially unable to assist the people to the extent that is needed" as Afghanistan is in the midst of an ongoing humanitarian and economic crisis, the BBC reported.

Despite help from "aid agencies, neighbouring countries and world powers", he said that "the assistance needs to be scaled up to a very large extent because this is a devastating earthquake which hasn't been experienced in decades".

Meanwhile, Taliban Supreme Leader Hibatullah Akhundzada claimed that hundreds of homes were destroyed and that the death toll was likely to increase as rescue teams and emergency workers are still looking for people buried in the debris, Khaama Press reported.

According to locals in the affected areas, the aftermath of the massive quake was poorly handled by the Taliban.

Afghan villagers sit outside a tent after their house was damaged in an earthquake in Spera District. AP

Five helicopters were sent to the location by the Taliban cabinet members approximately eight hours after the incident during an emergency meeting, to facilitate medical evacuation. Khaama Press quoted the locals as saying.

The Taliban's relief team is said to have reached the scene around 11 hours later to aid the victims.

The government has announced that it will pay 100,000 Afs for the families of victims and 50,000 to those injured.

Afghanistan is prone to quakes, as it is located in a tectonically active region, over a number of fault lines including the Chaman fault, the Hari Rud fault, the Central Badakhshan fault and the Darvaz fault.