President Recep Tayyip Erdogan asked for understanding for the delay in the rescue amid growing anger over the government’s response.
President Erdogan, who visited Adiyaman, said he “couldn’t work as he wanted” because of the shaking and bad weather. “Please forgive me for that,” he said.
In Turkey and Syria he said the February 6 earthquake killed more than 50,000 people.
A new, smaller earthquake hits Turkey. At least one person was killed and more than 100 injured in Malatya province, north of Adiyaman. A search and rescue team attempted to locate several people believed to be under the collapsed building.
There have been four new earthquakes and 45 aftershocks of magnitudes 5-6 since the two massive quakes on 6 February, according to Turkey’s Disaster and Emergency Management Authority (AFAD).
AFAD chief Orhan Tatar described it as “very extraordinary activity”.
The World Bank says the 6 February quakes caused about $34bn (£28bn) of direct damage in Turkey, but the cost of reconstruction could be about twice that figure. Meanwhile World Bank official Anna Bjerde said the situation in Syria was “really catastrophic”.
Mr Erdogan – who is seeking re-election as president in polls to be held by June – has been touring some of the worst-hit areas. His visit to Adiyaman came after strong criticism of the emergency response there from local people.
“I did not see anyone until 2:00 pm on the second day of the earthquake,” Adiyaman resident Mehmet Yildirim told AFP earlier this month.
“No government, no state, no police, no soldiers. Shame on you! You left us on our own.”
The disaster left 1.5 million people homeless and many thousands of people remain without shelter or sanitation. There are shortages of tents for survivors.
More than 160,000 buildings containing 520,000 apartments collapsed or were badly damaged on 6 February.
The government says hundreds of people are under investigation and nearly 200 people – including construction contractors and property owners – have already been arrested.
Experts had warned for years that endemic corruption and government policies meant many new buildings were unsafe.
In Adiyaman, Mr. Erdogan vowed to build more than 500,000 new homes along with infrastructure, medical centers and parks.
Turkey is due to hold presidential and parliamentary elections by June. Mr. Erdogan is seeking another term as president after 20 years in power.