The phrase "are being triggered" is correct and usable in written English.
It can be used to describe a situation where a response or reaction is being initiated, often in the context of emotions or psychological responses.
Example: "Certain memories from the past are being triggered by the song, causing her to feel nostalgic."
Alternatives: "are being activated" or "are being initiated".
All these hospital service closures are being triggered by commercialisation and efficiency savings.
There is little scientific doubt that the quakes in Oklahoma are being triggered by the injection, miles into the subsurface, of wastewater from oil and gas development.
Other employers have Brexit clauses in contracts that mean a vote to quit the EU makes it null and void, and I imagine these clauses are being triggered now.
From an E.M.D.R. perspective, this is because the unprocessed memories are being triggered, causing the negative emotions and perspectives to arise and inappropriately shape the client's reactions in the present.
A new study co-authored by UC Berkeley professor Michael Manga confirms that earthquakes in America's oil country — including a 4.8 magnitude quake that rocked Texas in 2012 — are being triggered by significant injections of wastewater below the surface of the Earth.
Basic ad group maintenance requires checking how many e-mail inquiries we get, whether the click-through rates are comparable to the overall campaign, which keywords generate the most traffic, and whether the ads are being triggered by searches that are relevant.
The issue in Office 365 is being triggered by.ics files attached to Google Calendar Events.
The second phase is being triggered by the construction of 140 and 220 Riverside Boulevard.
The Brexit ministry is still scrabbling to find skilled negotiators, but article 50 is being triggered within five months.
And that's a pretty obvious signature that change is being triggered right at the coast, and it's just propagating inland.
Remember, too, that this concern is being triggered by the catastrophic fires that we now seem to be having on an annual basis.
