Authorities reported that heavy rains in the area are hampering rescue efforts, and details remain unclear.
Numerous smaller quakes, mostly below 2.0-magnitude, also have shaken the area north of Ventura, the agency says.
The tremor hit the northwestern Iranian province at a shallow depth of about 10km early on Friday morning, local time, according to the US Geological Survey (USGS).
More recently, in 2017, a magnitude 7 natural disaster hit the Iran-Iraq border region, killing 600 people and injuring more than 9,000.
Don Sweeney has been a newspaper reporter and editor in California for way over 25 a number of years.
Man stabbed to death over chicken sandwich at Maryland Popeyes
The altercation, which started inside of the Popeyes , spilled outside where the suspect allegedly stabbed the victim. Popeyes franchisees hired more staff to cope with the return of its hit spicy chicken sandwich.
Rescuers have been dispatched to the region, officials said, with 30 homes reportedly destroyed at the epicenter of the quake.
According to the USGS, a 7.4-magnitude natural disaster struck the region about 190 kilometers southeast of the November 8 quake, killing almost 50,000 people.
The deadliest this century occurred in 2003 when a magnitude 6.6 quake struck the southeastern city of Bam, killing some 26,000 people.
The incident was followed by more than 60 aftershocks, causing people to stay outdoors in the middle of night.