Luo Shiqiang sat near chunks of concrete, bricks and a ripped orange sofa and told how his grandfather was just returning from feeding chickens when their house collapsed and crushed him to death in this weekend’s powerful earthquake in southwestern China.

“We lost everything in such a short time,” the 20-year-old college student said Sunday. He said his cousin also was injured in the collapse, but that other members of his family were spared because they were out working in the fields of hard-hit Longmen village in Lushan county.

Saturday’s earthquake in Sichuan province killed at least 186 people, injured more than 11,000 and left nearly two dozen missing, mostly in the rural communities around Ya’an city, along the same fault line where a devastating quake to the north killed more than 90,000 people in Sichuan and neighboring areas five years ago in one of China’s worst natural disasters.

The Lushan and Baoxing counties hardest-hit on Saturday had escaped the worst of the damage in the 2008 quake, and residents there said they benefited little from the region’s rebuilding after the disaster, with no special reinforcements made or new evacuation procedures introduced in their remote communities.

Luo said he wished more had been done to make his community’s buildings quake-resistant. “Maybe the country’s leaders really wanted to help us, but when it comes to the lower levels the officials don’t carry it out,” he said.

Relief teams flew in helicopters and dynamited through landslides Sunday to reach some of the most isolated communities, where rescuers in orange overalls led sniffer dogs through piles of brick, concrete and wood debris to search for survivors.

Many residents complained that although emergency teams were quick to carry away bodies and search for survivors, they had so far done little to distribute aid. “No water, no shelter,” read a hand-written sign held up by children on a roadside in Longmen.

“I was working in the field when I heard the explosions of the earthquake, and I turned around and saw my house simply flatten in front of me,” said Fu Qiuyue, a 70-year-old rapeseed farmer in Longmen.

Fu sat with her husband, Ren Dehua, in a makeshift shelter of logs and a plastic sheet on a patch of grass near where a helicopter had parked to reach their community of terraced grain and vegetable fields. She said the collapse of the house had crushed eight pigs to death. “It was the scariest sound I have ever heard,” she said.

The quake—measured by China’s earthquake administration at magnitude 7.0 and by the U.S. Geological Survey at 6.6—struck shortly after 8 a.m. on Saturday. Tens of thousands of people moved into tents or cars, unable to return home or too afraid to go back as aftershocks continued to jolt the region.

The quake killed at least 186 people, left 21 missing and injured 11,393, the official Xinhua News Agency quoted the provincial emergency command center as saying.

As in most natural disasters, the government mobilized thousands of soldiers and others, sending excavators and other heavy machinery as well as tents, blankets and other emergency supplies. Two soldiers died after their vehicle slid off a road and rolled down a cliff, state media reported.

The Chinese Red Cross said it had deployed relief teams with supplies of food, water, medicine and rescue equipment to the disaster areas.

Lushan, where the quake struck, lies where the fertile Sichuan plain meets foothills that eventually rise to the Tibetan plateau and sits atop the Longmenshan fault, where the 2008 quake struck.

The seat of Lushan county has been turned into a large refugee camp, with tents set up on open spaces, and volunteers doling out noodles and boxed meals to survivors from stalls and the backs of vans.

A large van with a convertible side served as a mobile bank with an ATM, military medical trucks provided X-rays for people with minor injuries, and military doctors administered basic first aid, applying iodine solution to cuts and examining bruises.

Patients with minor ailments were lying in tents in the yard of the local hospital, which was wrecked by the quake, with the most severely injured patients sent to the provincial capital. With a limited water supply and buildings inaccessible, sanitation is a problem for the survivors.

One of the patients receiving care in the hospital’s yard was the son of odd-job laborer Zhou Lin, 22. The baby boy was born a day before the quake struck. Zhou said he was relieved that his newborn son and wife were safe and healthy but was worried about his 60-year-old father and other relatives who have been unreachable in Baoxing.

“I can’t get through on the phone, so I don’t know what’s going on there and they don’t know if we are all right,” he said.

Every so often, an aftershock struck, shaking windows of buildings and sending murmurs through the crowds.

(AP Photo/Ng Han Guan)