An earthquake measuring 6.9 struck Monday in Mexico but people in downtown high rises felt the shaking.

The U.S. Geological Survey reports the quake struck at 11 a.m. about 50 miles northeast of Santa Isabel in Baja, Calif.

At San Diego's City Hall one city employee reported seeing crowds of people filing out of the building. By 11:30 a.m., the crowd of people had moved back inside.

We've gotten reports from two people working on higher floors at two separate downtown high rises saying books fell of shelves and file cabinets rocked.

One news crews stopped by Fire Station 1 on First Avenue where crews had already pulled fire trucks out of the station and had just put them back in. Firefighters said they had no reports of damage in the downtown area.

One of our Facebook users, Raffael Antonio Scullari in North Park, messaged us saying nothing was felt in North Park.

Delfina sent us an email saying the SANDAG offices at the Wells Fargo Plaza were swaying. Daphanie works for the city at 4th and B and emailed us to tell us that her building shook during the quake as well.

Did you feel the shaking? Let us know about your experience in the comment field below.

Check back for more information on this developing story.