Whatever caused it shook Tehran, Karaj, Eslam Shahr, Shahriar, and surroundings. People described the blasts as 'M7 M8-like earthquakes'. Jets were heard but not much. Personally, I think a bomber dropped some heavy ordnance.
Massive Blasts Shake Tehran and Surrounding Areas, Residents Report Earthquake-Like Tremors
Mysterious explosions shook Tehran, Karaj, Eslam Shahr, Shahriar, and surroundings, with people comparing the blasts to magnitude 7-8 earthquakes and jets heard overhead.