SpaceX’s Falcon 9 rocket will deliver SES-9, a commercial communications satellite for SES, to a Geostationary Transfer Orbit (GTO). SES is a world-leading satellite operator that provides satellite-enabled communications services to broadcasters, Internet service providers, mobile and fixed network operators, and business and governmental organizations worldwide using its fleet of more than 50 geostationary satellites. SpaceX is targeting an evening launch of SES-9 from Space Launch Complex 40 at Cape Canaveral Air Force Station, Fla. The approximately 90-minute launch window opens on March 4 at 11:35 pm UTC. The satellite will be deployed approximately 31 minutes after liftoff.

At around 7:50am this morning the world famous Arecibo radio telescope collapsed after a series of failures weakened its structural integrity over the last few months. It's possible that the final collapse was triggered by transient loads from a seismic event, and we expect to find out more in the coming hours. Based on photos of the destroyed structure I've tried to lay out a sequence of events that explains the distribution of wreckage.

Here some drone footage of the wreckage:
https://www.youtube.com/watch?v=GRHXCWr7xt0