Earthquake Info on Japan
My grandmother, whose ninetieth birthday is coming up soon, watches TV a lot, and calls my mom whenever there's an earthquake reported in Japan.
When there is an earthquake here, I check with tenki.jp, which is the government weather agency's website. Just above and to the right of the map is a pull-down menu of recent quake dates and times. The color-coded dots are the Japanese subjective shaking scale, which goes something like this:
- shindo 1: felt by sensitive people
- shindo 2: felt by many people
- shindo 3: wakeup call!
- shindo 4: pick up items previously precariously perched at higher levels
- shindo 5: call a handyman
- shindo 6: call a contractor
- shindo 7: call the army
Note that, although the numbers are similar, this is not the same as the magnitude of the earthquake; these numbers are what a person feels locally.
That info is filtered and takes a few (6-10) minutes to get posted. Hi-net is the direct access to the seismographic network.
Unfortunately, neither of those seems to have a decent English presence. I like tenki.jp because it has an i-mode interface, so when a quake hits in the middle of the night, I roll over, check my cell phone, then go back to sleep.
It does seem that we are having a lot of magnitude 4.0-5.3-ish quakes lately, mostly just north of us in Ibaraki-ken.