3rd » More than 50 people die in 2013 Argentina floods or floods resulting from record-breaking rainfall in La Plata and Buenos Aires, Argentina.
4th » More than 70 people are killed in a 2013 Thane building collapse known as building collapse in Thane, India.
15th » Boston Marathon bombings or Two bombs explode near the finish line at the 2013 Boston Marathon or Boston Marathon in Boston, Massachusetts, killing three people and injuring 264 others.
16th » A 7.8-Moment magnitude scale e.g magnitude 2013 Sistan and Baluchestan earthquake known as earthquake strikes Sistan and Baluchestan Province, Iran, killing at least 35 people and injuring 117 others.
17th » West Fertilizer Company explosion called An explosion at a fertilizer plant in the city of West, Texas, kills 15 people and injures 160 others.
18th » A 18 April 2013 Baghdad bombing e.g suicide bombing in a Baghdad cafe kills 27 people and injures another 65.
19th » Boston Marathon bombings suspect Tamerlan Tsarnaev is killed in a shootout with police. His brother Dzhokhar Tsarnaev is captured while hiding in a boat inside a backyard in Watertown, Massachusetts.
22nd » 6 people die in a 2013 Belgorod shooting known as shooting in Belgorod, Russia.
22nd » The Royal Canadian Mounted Police arrest and charge two men with 2013 VIA Rail Canada terrorism plot or plotting to disrupt a Toronto area train service in a plot claimed to be backed by Al-Qaeda elements.
24th » A 2013 Savar building collapse called building collapses near Dhaka, Bangladesh, killing 1,129 people and injuring 2,500 others.
29th » A powerful 2013 Prague explosion e.g explosion occurs in an office building in Prague, Czech Republic, believed to have been caused by natural gas, injures 43 people.
30th » Queen Beatrix of the Netherlands abdication abdicates and Willem-Alexander of the Netherlands Willem-Alexander becomes Monarchy of the Netherlands King of the Netherlands.
10th » Jimmy Dawkins, American singer and guitarist (b. 1936)
10th » Robert Edwards (physiologist) called Robert Edwards, English physiologist, Nobel Prize in Physiology or Medicine called Nobel Prize laureate (b. 1925)
10th » Dick Hart (golfer) called Dick Hart, American golfer (b. 1935)
10th » Robert Hugh McWilliams, Jr., American lawyer and judge (b. 1916)
10th » Gordon Thomas (cyclist) known as Gordon Thomas, English cyclist (b. 1921)
10th » Angela Voigt, German long jumper (b. 1951)
11th » Don Blackman, American singer-songwriter, pianist, and producer (b. 1953)
11th » Grady Hatton, American baseball player, coach, and manager (b. 1922)
11th » Thomas Hemsley, English opera singer (b. 1927)
11th » Hilary Koprowski, Polish-American virologist and immunologist (b. 1916)
11th » Gilles Marchal, French singer-songwriter (b. 1944)
11th » Maria Tallchief, American ballerina (b. 1925)
11th » Clorindo Testa, Italian-Argentinian architect, designed the National Library of the Argentine Republic and Marriott Plaza Hotel, Buenos Aires known as Marriott Plaza Hotel (b. 1923)
11th » Jonathan Winters, American actor and screenwriter (b. 1925)
12th » Robert Byrne (chess player) called Robert Byrne, American chess player and author (b. 1928)
12th » Johnny DuPlooy, South African boxer (b. 1964)
12th » Michael France, American screenwriter (b. 1962)
12th » Brennan Manning, American priest and author (b. 1934)
12th » Annamária Szalai, Hungarian journalist and politician (b. 1961)
12th » William Y. Thompson, American historian and author (b. 1922)
13th » Chi Cheng (musician) called Chi Cheng, American bass player (Deftones) (b. 1970)
13th » Stephen Dodgson, English composer and educator (b. 1924)
13th » Dean Drummond, American composer and conductor (b. 1949)
13th » Ian Henderson (police officer) known as Ian Henderson, Scottish-Kenyan police officer (b. 1927)
13th » Vincent Montana, Jr., American drummer and composer (MFSB and Salsoul Orchestra) (b. 1928)
13th » Lin Yang-kang, Chinese politician, 29th List of vice premiers of the Republic of China or Vice Premier of the Republic of China (b. 1927)
14th » Efi Arazi, Israeli businessman, founded the Scailex Corporation (b. 1937)
14th » Colin Davis, English conductor and educator (b. 1927)
14th » R. P. Goenka, Indian businessman, founded RPG Group (b. 1930)
14th » George Jackson (songwriter) named George Jackson, American singer-songwriter (b. 1945)
14th » Rentarō Mikuni, Japanese actor and director (b. 1923)
14th » Armando Villanueva, Peruvian politician, 121st Prime Minister of Peru (b. 1915)
14th » Charlie Wilson (Ohio politician) known as Charlie Wilson, American politician (b. 1943)
15th » Sal Castro, American educator and activist (b. 1933)
15th » Benny Frankie Cerezo, Puerto Rican-American lawyer and politician (b. 1943)
15th » Richard Collins (actor) named Richard Collins, Canadian actor (b. 1947)
15th » Benjamin Fain, Ukrainian-Israeli physicist and academic (b. 1930)
15th » Joe Francis (American football) known as Joe Francis, American football player and coach (b. 1936)
15th » Richard LeParmentier, American-English actor and screenwriter (b. 1946)
15th » Dave McArtney, New Zealand singer-songwriter and guitarist (Hello Sailor (band) known as Hello Sailor) (b. 1951)
15th » Scott Miller (pop musician) e.g Scott Miller, American singer-songwriter and guitarist (Game Theory (band) known as Game Theory and The Loud Family) (b. 1960)