Tainan, February 8 (RHC)-- At least four people, including an 8-year-old girl, were rescued Monday from a high-rise Taiwanese apartment building toppled by a powerful quake two days earlier, as frustration grew among families waiting for searchers to reach their buried loved ones.

More than 100 people are believed to still be under the debris in a disaster that struck during the most important family holiday in the Chinese calendar -- the Lunar New Year.

Saturday's quake killed at least 38 people in Tainan city in southern Taiwan, all but two of them in the collapse of the 17-story building. Even though the 6.4-magnitude quake was shallow, few buildings were reported to have been damaged, which experts said was because Taiwan's building standards are high.

Authorities have managed to rescue more than 170 people -- the vast majority in the immediate hours after the quake -- from the collapsed building using information about the building layout and the possible location of those trapped.