Magnitude 7.1 quake strikes near the town of Ridgecrest with 11 times more force than an apparent foreshock that rattled the same area a day earlier.
Iran has exceeded the upper limit of its low-enriched uranium reserves for the first time after the US withdrew from the accord last year. The UN's atomic watchdog also confirmed the breach in a report.
The Syrian regime has been accused of using chemical weapons, including in an alleged chlorine attack on north-west Syria on May 19. The regime has denied the allegations.
Last week, Iran notified China, France, Germany, Russia and the UK of its decision to halt some commitments under the 2015 nuclear deal, a year after the US unilaterally withdrew from the accord and re-imposed sanctions.
Astronomers across the globe will hold "six major press conferences" simultaneously on Wednesday to announce the first results of the Event Horizon Telescope (EHT).
South Korea's parliament on Wednesday passed a set of bills to fight air pollution that has blanketed parts of the country in recent years, with one bill designating the problem a ''social disaster''.
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