China Holds US Seismologist Accused of Espionage Over Nuclear Test Surveillance
Chen Youlin, a 54‑year‑old American citizen born in China, was detained by Chinese authorities in November 2024 during a family visit in Beijing. He faces charges of espionage, though his wife and colleagues deny any wrongdoing.
Rong Yufang, Chen’s wife and a fellow seismologist, told the Global Reach Global Advocacy Network that her husband worked in transparent cooperation with Chinese colleagues on projects that trace underground seismic events. “The allegations are both wrong and inconsistent with the public and collaborative nature of the work that he has done,” she said.
Chen’s research has focused on using seismic data to detect nuclear tests — most notably those carried out by North Korea, the country that China has historically supported and which is heavily sanctioned for its nuclear weapons program. U.S. intelligence analysts suspect that Beijing’s detention of Chen may be a response to revelations of China’s own covert nuclear activities, a claim China denies.
The U.S. Senate, led by Senator Edward Markey, has condemned the arrest as a threat to academic collaboration: "This undermines our partnership and deters scholars from engaging in joint research with China,"
Markey said on Tuesday.
China’s Foreign Ministry spokesman Lin Jian emphasized that the case was being handled under the law and dismissed claims of wrongful detention, noting that espionage convictions can carry severe penalties including life imprisonment or death.
In a stark account of Chen’s detention, the Global Reach group highlighted that he was interrogated more than 100 times and denied legal counsel for the first 13 months. They also flagged concerns over his health, citing his diabetes, high blood pressure, and high cholesterol, and urged medical care to be provided.
The incident follows China’s arrest of another U.S. scholar, Min Zin, a director at a Myanmar‑focused think‑tank, and has sparked international debate about how academic work in sensitive fields is scrutinized.
For further updates, follow our coverage on related topics such as espionage, U.S.-China relations, and nuclear weapons.
