Ellen Pompeo
Actress Ellen Pompeo, of the series "Grey's Anatomy," arrives at the 2013 People's Choice Awards in Los Angeles, January 9, 2013.Reuters

Over the past 11 seasons, the doctors at Seattle Grace Hospital, now Grey Sloan Memorial, have dealt with a number of natural calamities that have made them experts in dealing with whatever nature throws at them.

And on Thursday's episode, the doctors will yet again battle all odds to save lives as another natural calamity hits Seattle. An earthquake is going to wreck havoc in Seattle, and although it's going to last only a few minutes, the aftermath of the earthquake will prove disastrous.

According to the official synopsis, the earthquake will result in Maggie getting trapped in an elevator and "threatening Meredith's long streak of successful surgeries. Meanwhile, Owen gives medical advice to a child over the phone."

The official promo shows a 11-year-old boy calling the hospital saying his mother can't move. Owen is forced to give medical advice over the phone, but before he could make sure the boy's mother is fine, the call gets cut.

Neither the promo nor the synopsis mentions Dr Herman, and from the looks of it fans will have to wait yet another week to figure out how well she's doing. But some fans believe the episode could result in the death of a favourite character.

The last major natural calamity that hit Grey's was in season 9's penultimate episode titled "Readiness is All." The episode saw a massive storm hitting Seattle, resulting in patients flooding the hospital and supplies become scarce.

Besides the storm, the doctors have also dealt with a number of other disasters such as flooding, a ferry boat accident, a grieving husband embarking on a killing spree, and even their chopper going down and leaving the doctors stranded in the wilderness.

"Grey's Anatomy" airs Thursdays on ABC.