"the event where" is correct and usable in written English.
You can use it to refer to an event already discussed or understood. For example, "We all enjoyed the event where John performed his speech."
To see the video of the event where Microsoft introduced the tablet, click here.
In the event where an actual notebook is intact, it will be described as such.
I quickly made my way to the event, where we chatted for a few minutes before the lights went down.
Conan O'Brien was host for the event, where the most intense competition involved two shows in the best drama category.
A large crowd gathered outside the stadium, built specifically for the event, where two giant television screens were erected.
The event, where donors ate marinated flank steak and skewers of grilled tuna, was originally scheduled for Sept. 11.
At least 400 people are expected at the event, where the general admission tickets will be $2,300.
Opponents of his policies and beliefs demonstrated outside the event, where Jindal also spoke to anti-abortion campaigners.
A broad iron line at ∼6.55 keV was present outside of the event, where instead two narrow emission lines at ∼6.47 and ∼7.05 keV were detected.
In the event where environmental control measures and conservative medical therapy fail, many patients stand to benefit from immunotherapy testing and treatment.
Her entire family flew in for the event, where Ms. Cachay showed a Syla collection that was a knockout, with turquoise bathing suits and cover-ups.
