Have you ever seen the creatures in the following photo?
These are commonly called "gamo gamo" in tagalog or "simot simot in iloco. And to translate in english "termite flyers or warmers". They are harmless as long as their food is not your house.
And to quote, "A termite swarm is a telltale sign that a mature termite colony might lurk in your home or yard. As a homeowner, recognizing swarmer's is critical because it may mean that a well-established colony exists nearby, and there's a good chance they've already begun causing damage.".