This is a timeline of incidents in 2004 that have been labelled as "terrorism" and are not believed to have been carried out by a government or its forces (see state terrorism and state-sponsored terrorism).

List guidelines To be included, entries must be notable (have a stand-alone article) and described by a consensus of reliable sources as "terrorism". List entries must comply with the guidelines outlined in the manual of style under MOS:TERRORIST. Casualty figures in this list are the total casualties of the incident, including immediate casualties and later casualties (such as people who succumbed to their wounds long after the attacks occurred). Casualties listed are the victims. Perpetrator casualties are listed separately (e.g. x (+y) indicate that x victims and y perpetrators were killed/injured). Casualty totals may be underestimated or unavailable due to a lack of information. A figure with a plus (+) sign indicates that at least that many people have died (e.g. 10+ indicates that at least 10 people have died) – the actual toll could be considerably higher. If casualty figures are 20 or more, they will be shown in bold. In addition, figures for casualties more than 50 will also be underlined. In addition to the guidelines above, the table also includes the following categories:

January Total incidents:

Date Dead Injured Location Description Perpetrators Part ofJanuary 1043Palopo, Indonesia2004 Palopo cafe bombing: An explosive device detonated in a karaoke bar, killing four people and injuring three others. Authorities believe that the bomb was left under a table and the perpetrator was not among the victims.Laskar JihadJanuary 144 (+1)12Gaza, Israel2004 Erez Crossing bombing: A suicide bomber blew herself up at one of the entrances to Gaza's main crossing terminal to Israel, killing three Israeli soldiers and a civilian and wounding twelve others. Hamas and the Al-Aqsa Martyrs Brigade (Fatah) jointly claimed responsibility. Hamas stated it used a woman suicide bomber for the first time in order to counter Israeli precautions.HamasSecond IntifadaJanuary 2911 (+1)50Jerusalem, Israel2004 Jerusalem bus 19 bombing: A suicide bomber blew up a bus near the prime minister's residence, killing 11 bystanders and wounding at least fifty. Prime Minister Ariel Sharon was not home at the time. The al-Aqsa Martyrs Brigades claimed responsibility for the attack. Hamas also claimed responsibility for the bombing and denounced al-Aqsa. Hamas also sent a picture of the suicide bomber to the media to verify their claim.HamasSecond Intifada

February Total incidents:

Date Dead Injured Location Description Perpetrators Part ofFebruary 1117221Erbil, Iraq2004 Erbil bombings: 117 people were killed and 221 were injured when suicide bombers wearing explosives separately attacked the offices of both the Kurdistan Democratic Party and the Patriotic Union of Kurdistan. Among the dead in the near simultaneous attacks was the autonomous region's deputy prime minister Sami Abdul Rahman and Turkish businessman Resat Sevkat Akalin who was in Irbil in order to hold talks with Iraqi officials about a fair to be organized by Iraqi-American Businessmen's Association. Ansar al-Sunnah has claimed responsibility.Ansar al-SunnahIraq WarFebruary 640122Moscow, RussiaFebruary 2004 Moscow Metro bombing: A blast tore apart a metro train car during morning rush hour. The train was traveling between the Paveletskaya station and the Avtozavodskaya station around 8:40 am. The explosion occurred in the second car of the train, blowing out windows and causing metal pieces of the train to be strewn in all directions. The device had an explosive power of about 4–5 kg of TNT. The device was similar to that used in the commuter train attack in Yessentuki in 2003. Those who survived were forced to walk through the dark tunnel to exit the subway. At least 40 people were killed and 122 injured. Although Russian officials believe that Chechen rebels were behind the attack, particularly terrorists affiliated with Abu al-Walid al-Ghalidi, Chechen leaders deny involvement. Some officials speculated that the attack had occurred in an attempt to disrupt the upcoming March elections. There was also some speculation that there was a connection between al-Qaida and this incident. On March 1, several sources reported that a previously unknown terrorist group, known as Gazoton-Murdash (a Chechen group), claimed responsibility for the incident. The leader of the group said that the attack was intended to commemorate the fourth anniversary of the killing of Chechen civilians by Russian soldiers who took control of Groznyy. Chechen authorities were unsure if the group was a valid organization and were attempting to ascertain the true identity of the group leader, Lom-Ali Chechensky, and determine if the claim of responsibility is accurate. On March 4, Izvestiya reported that the statement of Lom-Ali was actually a reaction to the reported killing of Ruslan Gelayev in Dagestan. The source stated that this claim of responsibility was only propaganda, used to deflect attention from the killing of Gelayev and as retaliation for Russian propaganda. On September 28, Officials announced that they believed Anzor Izhayev was responsible for the blast. They believe that he died in the attack. The suspicion was based on genetic tests.Riyadus-SalihiinSecond Chechen WarFebruary 7116UnknownManila, Philippines2004 SuperFerry 14 bombing: 116 people died aboard SuperFerry 14 after it was bombed by the Abu Sayyaf group in Manila Bay on what is considered the worst terror attack on the nation's history.Abu SayyafMoro conflictFebruary 228 (+1)60Jerusalem, IsraelLiberty Bell Park bus bombing: A suicide bomber killed himself and eight others on a rush hour bus. The al-Aqsa Brigades claimed responsibility for the attack and said the bombing was also a reprisal for the Israeli army's killing of fifteen Palestinians in Gaza two weeks earlier.Al-Aqsa Martyrs' BrigadesSecond Intifada

March Total incidents:

Date Dead Injured Location Description Perpetrators Part ofMarch 265320Baghdad, Iraq2004 Ashura bombings in Iraq: A suicide attack occurred at a Shiite holy shrine, killing over 65 people and injuring at least 320 others. The attack occurred when three suicide bombers detonated their explosives simultaneously. Authorities are blaming this attack, and another on a Shiite shrine in the city of Karbala, on either groups associated with Al Qaeda or loyalists of Abu Mussab al-Zarqawi. The attacks come on one of the holiest days of the Shiite calendar and targeted Shiite pilgrims. Iraqi leaders, who were preparing to sign a new constitution, declared three days of national mourning and postponed signing the constitution until the mourning period was over.Jama'at al-Tawhid wal-Jihad (suspected)Iraq WarMarch 2106233Karbala, Iraq2004 Ashura bombings in Iraq: At least 106 people were killed and over 233 injured in a suicide attack on the holy Shiite city. At least four bombs detonated (some report up to nine bombs) by the Baghdad Gate, where pilgrims had gathered outside the Shrine of Hussain. This attack came on the same day as another Shiite shrine was attacked in Baghdad and on one of the holiest Shiite holidays. Police suspect a group linked to Al Qaeda in Iraq or loyalists of Abu Musab al-Zarqawi of carrying out the attacks. The perpetrators used a combination of suicide bombs, mortar rounds and planted bombs.Jama'at al-Tawhid wal-Jihad (suspected)Iraq WarMarch 247130Quetta, Pakistan2004 Quetta Ashura massacre: At least 47 people were killed and 130 injured following an attack on a Shia Muslim parade. All of the injured suffered bullet wounds. Two bodies were found that appeared to be those of bombers who had blown themselves up. The Shia were observing Ashura. The bombs were reportedly from the group Lashkar-e-Jhangvi.Lashkar-e-JhangviSectarianism in PakistanMarch 91 (+1)6Istanbul, TurkeyMarch 9, 2004 attack on Istanbul restaurant: Two suicide bombers blew themselves up outside a Masonic lodge in the Kartal neighborhood, killing one person and injuring five others. Only one of the bombers died in the attack, the other was seriously wounded. The attackers began by firing shots with automatic weapons into the Masonic café, they then detonated their bombs at the entrance to the lodge. Witnesses claim that one of the bombers chanted "Allahu Akbar" (God is great) before detonating himself. This led police to believe that the attackers may have been Islamic militants. By March 13, authorities had arrested fifteen people in connection with this attack, including two who had received military training in Afghanistan. CNN reports that the Abu Hafs al-Masri Brigade, the same group that claimed responsibility for the March 11 Madrid train bombings, also claimed responsibility for this incident. At least two of the attackers, Nihat Dogruel (who died in the attack) and Engin Vural (who was injured) had gone to Chechnya to fight after their training in Pakistan/Afghanistan.Al Qaeda-affiliateMarch 111912,050 El Mundo Madrid, Spain2004 Madrid train bombings: 191 people were killed and over 2,000 others were wounded when ten bombs detonated on the train line. The bombs were detonated by cell phones and were left in backpacks. At first the Spanish government blamed the Basque separatist group, ETA, but later the Abu Hafs al-Masri Brigade claimed responsibility on behalf of Al Qaeda. In their claim of responsibility, the Brigade says that Spain was targeted because of their involvement in the war in Iraq. On April 3, as the police were closing in on four suspects, including suspected ringleader Serjame ben Abdelmajid Fakhet, the suspects blew themselves up in their apartment, also killing a police officer.Moroccan Islamic Combatant Group (suspected)Islamic terrorism in EuropeMarch 1410 (+2)30Ashdod, Israel2004 Ashdod Port bombings: Ten Israeli civilians and two Palestinians suicide-bombers were killed when they blew themselves up. One bomb went off at a citrus fruit packaging factory and the other at an office just outside the perimeter of the port. A cache of grenades was found later hidden in a bag with a false bottom. Hamas and the al-Aqsa Martyr Brigades claimed joint responsibility for the blasts, stating they were in retaliation for recent members deaths in Jenin.HamasSecond IntifadaMarch 1910Jerusalem, IsraelFrench Hill attacks: An Israeli student was shot and killed in the French Hill section of East Jerusalem in an attack claimed by the Al-Aqsa Martyrs' Brigades.Al-Aqsa Martyrs' BrigadesSecond IntifadaMarch 3140Fallujah, Iraq2004 Fallujah ambush: Four Blackwater USA contractors were dragged from their car and killed.IslamistsIraq War

April Total incidents:

Date Dead Injured Location Description Perpetrators Part ofApril 2173200Basra, Iraq21 April 2004 Basra bombings: Suicide attackers detonated five simultaneous car bombs against police buildings during morning rush hour killing 68 people and wounding up to 200 people. Five of the injured died overnight from their wounds bringing the death toll up to 73. These were the largest attacks to hit the mainly Shiite city, since the US-led occupation began one year ago.Islamist insurgentsIraq War

May Total incidents: