A 5.9-magnitude earthquake strikes 60 km (35 miles) from Hashtrud, East Azerbaijan Province, in northwestern Iran, killing at least six and injuring more than 300. The United States Geological Survey warns that "significant casualties are likely and the disaster is potentially widespread".
French media reports that Iranian nuclear scientists began injecting uranium into centrifuges in the presence of International Atomic Energy Agency inspectors at the Fordow Fuel Enrichment Plant. Effectively it turns the plant from a research site into an active nuclear site, in further violation of the Joint Comprehensive Plan of Action.
U.S. Senator Lindsey Graham strongly criticizes President Trump's decision, describing the event as "a big win for Iran and Assad [and] a big win for ISIL". Former American envoy Brett McGurk mentions the 60,000 SDF-held ISIL detainees, saying that the State Department and inspectors general at the Department of Defense warn they are the "nucleus for a resurgent ISIL".
Microsoft says a network of hackers linked to the Iranian government has attempted to access the email accounts of people associated with a 2020 presidential election campaign, as well as prominent Iranian expatriates in the United States. Microsoft has not named the specific campaign which was targeted by Iran.