Last night’s quake

It’s highly amusing to me that in two short months of living in Tokyo, I’ve seemingly felt more earthquakes than I ever remember experiencing in 14 years of living in San Francisco (including the big-but-not-The-Big-One 1989 quake). Last night, or actually early this morning around 5:30am, was the strongest yet, although apparently it only measured 4.7 magnitude according to the New York Times (via AP). It was quite a short but violent jolt, whereas most of the others have been of the “rolling” variety. According to the AP article, “Japan is one of the world’s most earthquake-prone nations because it sits atop four tectonic plates.”