Title: 2017 in Iran
Content: November 12 &ndash; A magnitude 7.3 earthquake strikes Iran near the border with Iraq, killing at least 630 people and injuring 8,100 others. 
Title: 2017 Iran–Iraq earthquake
Content:   The earthquake occurred near the Iran–Iraq border,   approximately 220 km northeast of Baghdad. According to the United States Geological Survey, the earthquake measured 7.3 on the moment magnitude scale and was caused by movement on a thrust fault dipping at a shallow angle to the northeast. The epicentre was at a depth of 19.0 km, and the maximum perceived intensity was IX (Violent) on the Mercalli intensity scale. This was the strongest earthquake recorded in the region since a 6.1 Mw event in January 1967. The earthquake was felt throughout the Middle East and as far away as Israel, the Arabian Peninsula and Turkey. The Iranian seismological centre registered at least 50 aftershocks within a few hours of the earthquake.
Title: 2017 Iran–Iraq earthquake
Content:  On 12 November 2017 at 18:18 UTC (21:48 Iran Standard Time, 21:18 Arabia Standard Time), an earthquake with a moment magnitude of 7.3 occurred on the Iran–Iraq border, with the Iraqi Kurdish city of Halabja, and the Kurdish dominated places of Ezgeleh, Salas-e Babajani County, Kermanshah Province in Iran,   closest to the epicentre, 30 km south of the city of Halabja, Iraqi Kurdistan. It was felt as far away as Israel and the United Arab Emirates. With at least 630 people killed (mostly in Iraq's Kurdish Halabja area and the Iranian Kurdish dominated province of Kermanshah), and more than 8,100 injured, as well as many more unaccounted for,  it was the deadliest earthquake of 2017.
Title: 2013 Saravan earthquake
Content:  There has been an increase in earthquake activity in not only Iran but also neighboring Pakistan. In the entire 20th century Pakistan and Iran experienced a combined total of twenty-six earthquakes. Within the first thirteen years of the 21st century Pakistan and Iran have suffered a combined total of eighteen earthquakes, with the most recent earthquake in Iran occurring on April 16, 2013 and the most recent earthquake in Pakistan occurring on September 28, 2013. These earthquakes can range from microearthquakes, measuring less than a 2.0 on the moment magnitude scale, to very large events measuring 7.0–7.9. The smallest earthquakes may not be felt, while major earthquakes can be assessed at VIII (Severe) or higher on the Mercalli intensity scale.
Title: History of the Islamic Republic of Iran
Content:  The 6.6 Bam earthquake shook southeastern Iran with a maximum Mercalli intensity of IX (Violent), leaving more than 26,000 dead and 30,000 injured. The 7.4 Manjil–Rudbar earthquake struck northern Iran with a maximum Mercalli intensity of X (Extreme), killing 35,000–50,000, and injuring 60,000–105,000.
Title: 2005 Qeshm earthquake
Content:  Iran experiences at least one minor earthquake per day on average, and the Zagros region is particularly prone to seismic activity. During the last 100 years, Iran has been hit by more than 130 events stronger than magnitude 5, with damaging earthquakes near Qeshm recorded in 1360, 1703, 1884, 1897, 1902, and 1905. The majority of Iranian quakes occur in the upper crust, close to the surface, which means that they are potentially more destructive. In terms of earthquake protection, Iran was named the "worst offender" in 2004 by Professor Roger Bilham of the University of Colorado at Boulder. Bilham, a geophysicist who specializes in earthquake-related deformation and hazards, blames construction practices for many of the deaths in Iranian earthquakes. 
Title: 1997 in science
Content: May 10 – The 7.3 Qayen earthquake shakes eastern Iran with a maximum Mercalli intensity of X (Extreme). At least are 1,567 killed and 2,300 injured. 
Title: 1972 in Iran
Content: 10 April – The 6.7 Qir earthquake shook southern Iran with a maximum Mercalli intensity of IX (Violent), killing 5,374 and injuring 1,710. 
Title: July 2010 Iran earthquake
Content:  On July 30, 2010 a 5.6 magnitude earthquake occurred in Razavi Khorasan province, Iran.
Title: 1997 in Iran
Content: Iranian presidential election, 1997. ; 28 February – The 6.1 Ardabil earthquake affected northern Iran with a maximum Mercalli intensity of VIII (Severe), killing 1,100, injuring 2,600, and leaving 36,000 homeless. ; 10 May – The 7.3 Qayen earthquake affected eastern Iran with a maximum Mercalli intensity of X (Extreme). At least 1,567 were killed and 2,300 were injured. ; 2 August – Mohammad Khatami became president of Iran. 

Question: when was the last time iran had an earthquake?
Answer: 2017-12-20.