Maybe it's only our neighborhood( we're in Oriente), but our power's going crazy the last few days! We've blown two power surge protectors, and I mean fried them but good. About 4 PM the last two days, we get this wild power surge, the fans start spinning like jet turbines, lights get really bright, and we hear a crackling which is the sound of the surge protector frying. Crazy.
When I lived in Tampico, our voltage would sometimes fluctuate as much as 50%. I had to buy a fairly expensive voltage regulator and a surge suppressor to protect my electronic gear. I haven't heard of wild power fluctuations like that in years.