Iranian Supreme Leader Ayatollah Khamenei sent a message for all citizens to "rush to the aid of those affected in these early hours after the incident".
"We are living in a tent and we don't have enough food or water", he said.
But more aid was still needed.
The head of the elite Revolutionary Guards, Major General Mohammad Ali Jafari, said the immediate need was for tents, water and food.
Seven towns and almost 2,000 villages were damaged, authorities said, with some villages completely wiped from the map.
Eden will be a good wicket, says Sourav Ganguly
India being the favourites against the islanders, in all probability, Kohli should surpass Ganguly during the three-Test rubber. I always think that if I improve on one shot at the nets, I will be better off in the game.
Iran has declared Tuesday a national day of mourning.
Iranian medical officials announced that several field hospitals have been set up in the quake-hit areas.
Kermanshah's provincial officials said about 12,000 houses both in urban and rural regions across the province have been totally damaged due to the strong quake.
Rescue workers with sniffer dogs combed the ruins for survivors after at least 280 people were killed in the town of some 85,000 people.
About 30 Red Crescent teams are working in the quake zone, Irna reported. Iranian army helicopters are taking part in the relief effort.
$-0.24 EPS Expected for Palo Alto Networks Inc (PANW)
In related news, insider Nir Zuk sold 28,000 shares of the stock in a transaction that occurred on Tuesday, November 7th. Prelude Cap Mgmt Ltd Co owns 936 shares or 0.01% of their U.S. portfolio. 12,762 are held by Fulton Bankshares Na.
By Monday, officials said all the roads in Kermanshah province had been reopened.
The magnitude 7.3 quake struck Sunday night Iran time, just as people were going to bed.
Thirteen years later, a catastrophic quake flattened swathes of the ancient southeastern Iranian city of Bam, killing at least 31,000.
On the Iraq side of the border, 11 people were killed and the most damage was seen in Darbandikhan, near the semi-autonomous Kurdistan region.
Investors ask trade group if Venezuela sovereign debt is in default
Venezuela's envoy to the UN, Rafael Ramirez, called the meeting "illegal" and a "hostile" act "of interference" by the US. The US has designated vice president El Aissami himself a drug kingpin with whom US entities are barred from dealing.