Tangshan's 1976 Quake Killed 242,000. One County Lost Nobody.

On July 28, 1976, a magnitude 7.8 earthquake leveled the Chinese coal-mining city of Tangshan in about 15 seconds while a million people slept, killing more than 242,000. Seventeen months earlier China had pulled off the only successful earthquake prediction in history, and that very triumph bred the complacency that doomed Tangshan. One county 115 kilometers away heeded a warning the bureaucracy had buried, moved its people outdoors, and lost not a soul.

At 3:42 a.m. on July 28, 1976, the ground opened directly beneath Tangshan, an industrial coal city 150 kilometers east of Beijing. The shock, magnitude 7.8 on China's surface-wave scale (7.6 on the moment-magnitude scale most seismologists use), ruptured a fault no one knew was there, only 12 kilometers down. It lasted about 15 seconds. In that span, 85 percent of the city's buildings collapsed or were ruined; by some counts 97 percent were destroyed. The shaking reached Mongolia and Korea, 1,100 kilometers away, and killed at least 50 people in Beijing itself. Today is the 50th anniversary, and Premier Li Qiang laid a wreath in Tangshan on Xi Jinping's behalf to mark it.

The official death toll was 242,469, though historians cross-checking internal files put it above 300,000 and foreign estimates at the time ran to 650,000 or more. It was the deadliest earthquake of the 20th century. China published the 242,000 figure only in November 1977, more than a year later, and refused every offer of foreign aid.

What makes the toll so bitter is that China had just proven earthquakes could be foreseen. In February 1975, the Haicheng quake, 400 kilometers northeast, was predicted from a swarm of foreshocks, the city was emptied, and fewer than 2,100 died. Seismologists still call it the only successful prediction of a major earthquake in history. It was hailed as proof of China's methods, and that triumph bred the trap. After Haicheng, the State Seismological Bureau's dominant view was that North China had spent its seismic energy, no big quake was coming, because in thousands of years of records no two magnitude-7 shocks had struck the region back to back. The warning signs in 1976 said otherwise. In June the bureau received 15 prediction reports in a single month, against a usual three to five. By mid-July a Beijing team reported the most striking anomalies in its history, water radon jumped, spring temperatures rose two degrees, and rats fled their burrows in swarms.

On July 14, two weeks before the quake, a national earthquake-preparedness conference actually met in Tangshan. Wang Chengmin, a young seismologist on the bureau's Beijing-Tianjin team, asked to brief the room and was refused. He spoke anyway, at an evening session, warning of a possible magnitude-5 shock between July 22 and August 5. On the morning of July 27, with 15 hours to go, he finally reached the bureau's deputy director, who told him they would discuss it "next week." Tangshan had no perceptible foreshocks. No warning went out.

One county listened. Wang Chunqing, a 21-year-old who ran Qinglong County's earthquake office 115 kilometers away, heard Wang Chengmin's talk, took notes, and raced home. The county party secretary, Ran Guangqi, gambled his career on it. On July 25 he ordered every cadre to carry the warning to every household by the next day, had tents pitched, and moved himself into one. More than 60 percent of Qinglong's 470,000 residents slept outdoors. When the quake hit, 180,000 of their buildings fell, but only one person died, of a heart attack. The United Nations later called it the Qinglong Miracle and honored Ran in 1996.

The disaster reached into the Politburo too. Mao Zedong, 83 and dying, signed off on his last document, the earthquake relief report, and was dead in six weeks. And the failures echoed forward in a way nearly every Chinese person now touches daily. After Tangshan, even Beijing had only one emergency phone line and a dozen old ambulances, and many of the 3,817 survivors left paralyzed were injured not by the quake but by untrained rescuers dragging them from the rubble. A doctor's decades of advocacy gave China its first modern emergency center in 1988 and the national 120 hotline that 1.4 billion people dial today. The quake's aftershocks have not stopped either. In July 2020 a magnitude-5.1 tremor near Tangshan was confirmed as a 44-year-old aftershock of the same event.

Also on this day

1540, Henry VIII married his fifth wife, Catherine Howard, on the very morning his chief minister Thomas Cromwell was beheaded on Tower Hill, an execution the king later came to regret. (The Tudor Society)
1821, the Argentine general José de San Martín proclaimed Peru's independence from Spain in Lima's main square, having marched an army across the Andes and sailed north to strike at the seat of Spanish power in South America. (Britannica)
1914, Austria-Hungary declared war on Serbia by telegram, the first such declaration sent by wire, after Belgrade failed to satisfy Vienna's ultimatum over the assassination of Archduke Franz Ferdinand, setting the alliance system in motion toward the First World War. (UNESCO Memory of the World)
1932, President Herbert Hoover ordered the U.S. Army, under Gen. Douglas MacArthur and aided by Majors Patton and Eisenhower, to drive 10,000 jobless World War I veterans from their camps in Washington with tanks, bayonets, and tear gas, a rout that helped cost Hoover the election that November. (PBS American Experience)