LIMA, Peru (AP) _ A second avalanche rushed down on a remote village in Peru's northern Andes on Monday, a day after a similar slide left at least 34 people missing.

The landslides in La Pucara, 400 miles northwest of the capital, Lima, were apparently caused by heavy rains filtering through the soil and coming into contact with superheated, sulfurous thermal springs underground, said Dr. Hernando Tavera, a seismologist with Peru's Geophysical Institute.

That triggered explosions of steam, which pushed the water up through cracks in the mountainside and loosened topsoil, setting off the landslides, Tavera said.

The second landslide occurred at 9 a.m. local time, but no one was hurt because residents had already been evacuated after Sunday's avalanche, Tavera told The Associated Press.

The landslides were not accompanied by seismic activity and were not volcanic eruptions, he said.

The first slide caused an avalanche of mud and rocks that swept down a mountainside, destroying 35 homes on the outskirts of the village.

Presidential Minister Edgardo Mosqueira, citing civil defense figures, said Monday evening that the number of people still regarded as missing had dropped to 34, including children. Earlier official reports had put the figure as high as 46.

He said the landslide had destroyed 35 mud-brick homes and buried 250 acres of corn, barley and potatoes under tons of mud. He said earlier official reports that spoke of 1,200 people suffering damage to their homes and their crops were exaggerated.

Rescue teams used specially trained dogs to search for survivors who may be buried alive under the earth.

Civil defense brigades were sent to the area with food, blankets, tents and medical supplies. Rain-damaged roads were slowing the arrival of aid, forcing rescue workers to ferry in supplies by helicopter.