The first of the quakes registered a preliminary magnitude 5.6 and struck at 1:19 a.m. in Chiba state, to the east of Tokyo, the Meteorological Agency said. The second, a magnitude-4.1 temblor, hit at 1:34 a.m. in the same area, the agency said.
The strongest shaking was felt in the town of Hikari and Narita city, near Tokyo's international airport, the agency said. The earlier of the two temblors was also felt in downtown Tokyo, where buildings shook for less than 10 seconds.
The agency said there was no danger of tsunami, the potentially killer waves triggered by seismic activity. -AP
Ten seconds is a long time for a quake to release its energy, on top of that, my unofficial report is that it last longer than 10 sec, it was more like 20 sec, followed by a weaker, shorter quake. Whenever something like this hits, I feel like it could be it. I am ready. Luckily, it wasn't it. California keeps shaking too maybe something big will hit the Ring of Fire.
If you live in Japan, you know what the deal is. But for a lack of English reports, it always makes me wonder what happens and where it happens. Here is a good website (near real-time) by USGS (U.S. Geological Survey) to keep watch on these seismological activities world-wide.
images: JWA
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