Living on a beach, I always have tsunamis in the back of my mind. It is my opinion that I am not so subject to a killer tsunami, as I am blocked from the open Pacific by other islands of the Philippines. I am, however, affected by earthquakes, less then 50 km from me. Since the big 8+ quake last month, we now have several small (mag 4 or less) almost every day. Very few are even noticed, and I have seen no surge in waves. The quakes are on Bohol, a large island that I can see from my beach.
If any FReeper is an authority on the subject, I would welcome any opinions.
MOVE UP THE HILL a bit .....
Aftershocks, and for that matter foreshocks are very common with big earthquakes. I was in a 7.5 in Mexico City (1957?) and as I lay in bed, for weeks after I could feel little rumbles, sometimes several a day. I was in the Virginia earthquake last year. Was sitting on my bed and the wall oposite me started to vibrate and shake for about 15 seconds. At first I thought it might have been a distant bomb/explosion, but when no sound came thought earthquake. At least once in the next several days I felt a faint vibration while sitting, and once saw the surface of a glass of water start to shimmer. Didn’t feel anything then but an aftershock of 2.0 was reported later. Leave a bowl of water out if you want to track the minor ones.
Eight+ is plenty big, but another big one is possible. Google New Madrid Earthquakes, 1811-12 for more info. There were at least 3 8+ earthquakes and many other 7+ over a 4 or 5 month period.
Grab the family and run.
My wife is from Oroquieta City, on Mindanao. I’m sure that’s not far from you. Before we got married she and her family lived on a beach. Thankfully they never got a tsunami, but she remembered one that hit a nearby city (Dipolog?) in 1977 and killed 3,000 people.