On 12 November 2017 at 18:18

UTC Coordinated Universal Time (UTC) is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communica ...

(21:48

Iran Standard Time Iran Standard Time (IRST) or Iran Time (IT) is the time zone used in Iran. Iran uses a UTC offset UTC+03:30. IRST is defined by the 52.5 degrees east meridian, the same meridian which defines the Iranian calendar and is the official meridian of ...

, 21:18

Arabia Standard Time UTC+03:00 is an identifier for a time offset from UTC of +03:00. In areas using this time offset, the time is three hours ahead of the Coordinated Universal Time (UTC). Following the ISO 8601 standard, a time with this offset would be writt ...

), an

earthquake An earthquakealso called a quake, tremor, or tembloris the shaking of the Earth's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes can range in intensity, from those so weak they ...

with a moment magnitude of 7.4 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 Kermanshah province () is one of the 31 provinces of Iran, bordering Iraq. Its capital is the city of Kermanshah. According to a 2014 segmentation by the Ministry of Interior (Iran), Ministry of Interior, it is the center of Regions of Iran ...

in Iran, closest to the epicentre, south of the city of

Halabja Halabja (, ) is a city in the Kurdistan Region of Iraq and the capital of Halabja Governorate, located about northeast of Baghdad and from the Iranian border. The city lies at the base of what is often referred to as the greater Hewraman re ...

Iraqi Kurdistan Iraqi Kurdistan or Southern Kurdistan () refers to the Kurds, Kurdish-populated part of northern Iraq. It is considered one of the four parts of Greater Kurdistan in West Asia, which also includes parts of southeastern Turkey (Northern Kurdist ...

. It was felt as far away as

Israel Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Isr ...

and the

United Arab Emirates The United Arab Emirates (UAE), or simply the Emirates, is a country in West Asia, in the Middle East, at the eastern end of the Arabian Peninsula. It is a Federal monarchy, federal elective monarchy made up of Emirates of the United Arab E ...

. With at least 630 people killed (mostly in Iraq's Kurdish Halabja area and the Iranian Kurdish dominated province of Kermanshah), more than 8,100 injured, and many more unaccounted for, it was the deadliest earthquake of 2017.

Tectonic setting

The

was located within the

Zagros fold and thrust belt The Zagros fold and thrust belt (Zagros FTB) is an approximately long zone of deformed crustal rocks, formed in the foreland of the collision between the Arabian plate and the Eurasian plate. It is host to one of the world's largest petroleum ...

, part of the broad and complex zone of

continental collision In geology, continental collision is a phenomenon of plate tectonics that occurs at Convergent boundary, convergent boundaries. Continental collision is a variation on the fundamental process of subduction, whereby the subduction zone is destroy ...

between the

Arabian The Arabian Peninsula (, , or , , ) or Arabia, is a peninsula in West Asia, situated north-east of Africa on the Arabian plate. At , comparable in size to India, the Arabian Peninsula is the largest peninsula in the world. Geographically, the ...

and Eurasian plates. At this location, the relative convergence of the plates is about 26 mm per year. The convergence is quite oblique to the Zagros belt, although it is partitioned into orthogonal dip-slip motion within the active thrust belt and dextral (right lateral) strike-slip motion along the Main Recent Fault to the northeast of the

Zagros Mountains The Zagros Mountains are a mountain range in Iran, northern Iraq, and southeastern Turkey. The mountain range has a total length of . The Zagros range begins in northwestern Iran and roughly follows Iran's western border while covering much of s ...

Earthquake

The earthquake occurred near the Iran–Iraq border, approximately northeast of

Baghdad Baghdad ( or ; , ) is the capital and List of largest cities of Iraq, largest city of Iraq, located along the Tigris in the central part of the country. With a population exceeding 7 million, it ranks among the List of largest cities in the A ...

. The

International Seismological Centre The International Seismological Centre (ISC) is a non-governmental, nonprofit organisation charged with the final collection, definitive analysis and publication of global seismicity. The ISC was formed in 1964 as an international organisation ...

(ISC) reported a magnitude of on the

moment magnitude scale The moment magnitude scale (MMS; denoted explicitly with or Mwg, and generally implied with use of a single M for magnitude) is a measure of an earthquake's magnitude ("size" or strength) based on its seismic moment. was defined in a 1979 paper ...

. According to the

United States Geological Survey The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on Mar ...

, the earthquake was caused by movement on a

thrust fault A thrust fault is a break in the Earth's crust, across which older rocks are pushed above younger rocks. Thrust geometry and nomenclature Reverse faults A thrust fault is a type of reverse fault that has a dip of 45 degrees or less. I ...

dipping at a shallow angle to the northeast. The

hypocentre A hypocenter or hypocentre (), also called ground zero or surface zero, is the point on the Earth's surface directly below a nuclear explosion, meteor air burst, or other mid-air explosion. In seismology, the hypocenter of an earthquake is its p ...

was at a depth of , and the maximum perceived intensity was IX (''Violent'') on the

Mercalli intensity scale The Modified Mercalli intensity scale (MM, MMI, or MCS) measures the effects of an earthquake at a given location. This is in contrast with the seismic magnitude usually reported for an earthquake. Magnitude scales measure the inherent force or ...

. This was the first powerful earthquake recorded in the region since a 6.1 M_w event in January 1967. The earthquake was felt throughout the

Middle East The Middle East (term originally coined in English language) is a geopolitical region encompassing the Arabian Peninsula, the Levant, Turkey, Egypt, Iran, and Iraq. The term came into widespread usage by the United Kingdom and western Eur ...

and as far away as

, the

Arabian Peninsula The Arabian Peninsula (, , or , , ) or Arabia, is a peninsula in West Asia, situated north-east of Africa on the Arabian plate. At , comparable in size to India, the Arabian Peninsula is the largest peninsula in the world. Geographically, the ...

and

Turkey Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...

Aftershocks

The Iranian seismological centre registered at least 50

aftershock In seismology, an aftershock is a smaller earthquake that follows a larger earthquake, in Epicenter, the same area of the Mainshock, main shock, caused as the displaced Crust (geology), crust adjusts to the effects of the main shock. Large earthq ...

s within a few hours of the earthquake, with a total of 242 earthquakes. These aftershocks killed at least four and injured at least 1,488 others.

Aftermath

Casualties and damage

The province of Kermanshah was the most affected area along with the cities of

, Iraq and

Sarpol-e Zahab Sarpol-e Zahab () is a city in the Central District of Sarpol-e Zahab County, Kermanshah province, Iran, serving as capital of both the county and the district. The town is close to Qasr-e Shirin and the Iraqi border. Demographics Langu ...

being the hardest-hit. Ezgeleh was the nearest city to the epicentre of the earthquake. More than half of the Iranian casualties were from Sarpol-e-Zahab and the Ezgeleh District, which have a combined population of over 30,000. Officials announced closure of schools in Kermanshah and

Ilam province Ilam Province () is one of the 31 provinces of Iran. Its capital is the city of Ilam. The province is in the western part of the country in Region 4 and covers . It shares of the border with Iraq, and also bordering on the provinces of Ke ...

s following the quake. 630 people died. More than 7,000 others were injured. In Sarpol-e Zahab, the hospital was damaged and at least 142 people were killed, many who had lived in social housing complexes built by former president

Mahmoud Ahmadinejad Mahmoud Ahmadinejad (born Mahmoud Sabbaghian on 28 October 1956) is an Iranian Iranian principlists, principlist and Iranian nationalism, nationalist politician who served as the sixth president of Iran from 2005 to 2013. He is currently a mem ...

. At least seven people were killed and another 500 injured in neighbouring Iraq, according to officials in

. Further damages were seen as possible due to the threat of landslides induced by the shallow depth of the earthquake. The earthquake left about 70,000 people homeless across 14 Iranian provinces, destroying approximately 12,000 homes and damaging another 15,000. Relief camps in Iran distributed 22,000 tents and 52,000 blankets in the days after the earthquake. On 17 November, the Iranian government announced that the disaster has caused at least €5 billion of damage. In Sarpol-e Zahab, some residents blamed the widespread destruction on poor construction quality and government corruption. It was noted that older buildings remained standing, while many newer blocks collapsed.

Aid

was the first country to offer aid, through its

Disaster and Emergency Management Presidency The Disaster and Emergency Management Presidency (, also abbreviated as AFAD),
''reviewed in 10.11.2011'' also ...

, announcing that 92 rescue personnel were on standby, together with 4,000 tents and 7,000 blankets.

European Union The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...

Foreign Policy Chief

Federica Mogherini Federica Mogherini (; born 16 June 1973) is an Italian politician who served as High Representative of the Union for Foreign Affairs and Security Policy and Vice-President of the European Commission from 2014 to 2019. A member of the Democratic ...

said the bloc was ready to cooperate with Iran in providing emergency relief aid, and Italy's government issued orders to send 12 tonnes of tents, blankets and mobile kitchens on 13 November. The

International Committee of the Red Cross The International Committee of the Red Cross (ICRC) is a humanitarian organization based in Geneva, Switzerland, and is a three-time Nobel Prize laureate. The organization has played an instrumental role in the development of rules of war and ...

had arrived by 13 November.

Sunni Sunni Islam is the largest branch of Islam and the largest religious denomination in the world. It holds that Muhammad did not appoint any successor and that his closest companion Abu Bakr () rightfully succeeded him as the caliph of the Mu ...

charities, such as the Iranian Call and Reform Organisation, were providing tents and water. Rescue dogs were also used by the Iranian Red Crescent in order to search for survivors. The

South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It constitutes the southern half of the Korea, Korean Peninsula and borders North Korea along the Korean Demilitarized Zone, with the Yellow Sea to the west and t ...

n actress Lee Young-ae donated $45,000 to the Embassy of Iran in

Seoul Seoul, officially Seoul Special Metropolitan City, is the capital city, capital and largest city of South Korea. The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's List of cities b ...

to help the victims of the earthquake. On 14 November, Iranian minister of foreign affairs

Mohammad Javad Zarif Mohammad Javad Zarif (; born 8 January 1960) is an Iranian career diplomat and academic. He served as the vice president for strategic affairs from August 2024 to March 2025.List of earthquakes in 2017 *

List of earthquakes in Iran Iran is one of the most seismically active countries in the world, being crossed by several major faults that cover at least 90% of the country. As a result, earthquakes in Iran occur often and are destructive. Geology and history The Irania ...

References

External links

USGS summary of earthquake.

Institute of Geophysics, University of Tehran's updated report of earthquake.
(in Persian) * * {{DEFAULTSORT:2017 Iran-Iraq earthquake 2017 earthquakes 2017 in Iran 2017 in Iraq 2017 disasters in Iran 2017 disasters in Iraq Earthquakes in Iran Earthquakes in Asia Natural disasters in Iraq November 2017 in Asia November 2017 in Iraq November 2017 in Iran Buried rupture earthquakes