The new quake measured 5.0 on the Richter scale.

There were no reports of fresh casualties.

Mike Wooldridge reports: "The scale of the tragedy becomes clear"

Relief teams are in the area, in Uttar Pradesh, attending to the victims of Monday's tremor, but resources are overstretched, with electricity and drinking water cut off to many areas.

In the worst affected district of Chamoli, soldiers, paramilitary forces and Red Cross personnel were still trying on Wednesday to get relief materials to distant areas, which remain cut off because of massive landslides triggered by the quake.

Under control

"The situation is basically under control although our main concern now is setting up an adequate supply of drinking water," said an Indian Red Cross official.

The strongest quake to hit the area in 90 years

The Uttar Pradesh Chief Minister, Kalyan Singh, visited the area on Tuesday, but was received coolly by survivors who said the government was not doing enough to help them.

A relief convoy from the International Federation of the Red Cross (IFRC) arrived in Chamoli with tarpaulins, blankets, kitchen utensils, cooking oil, rice and clothing.

The head of the IFRC in India, Geoffrey Dennis, said another eight loads would arrive later in the week.

Monday's 40-second quake was the strongest to hit the Himalayan foothills in more than 90 years.

Landslide debris

Hundreds of road workers have been sent in to clear landslide debris from a 16km stretch of road leading to the worst-affected area.

"It looks like half the mountain has come off," said Chamoli district magistrate Uma Kant Pawar.

Mike Wooldridge in the earthquake area

With an estimated 5,000 homes destroyed by the earthquake, the military have set up tents for at least some of those made homeless.

Many residents spent a second night in the open for fear of aftershocks.

Local residents have organised a committee to see that those worst affected receive food, but the district is appealing for more funds from the state to help deal with the emergency.

Families buried in rubble

The BBC Correspondent in Chamoli, Mike Wooldridge, says the worst damage was localised, with virtually all the houses and shops built on slopes in the lower part of the town succumbing to the earthquake.

Naresh Shah lost his daughter and four other relatives

Five members of one family of seven perished, including a girl of four, who slipped off her unconscious father's lap and into the rubble.

Another man described how he picked among the debris of his house with a shovel throughout the night, only to find two buried relatives dead.

The tremors caused panic as far away as Delhi, 190 miles (300km) south of the epicentre.

Powerful tremors were felt in towns and cities throughout northern India, and also shook the western Indian city of Pune.

Pakistani officials reported Monday's quake was also felt in Lahore and Gujranwala which lie close to the border with India.