

Volcano Islands, Japan Region 7.4 Mw Earthquake Focal Mechanism
| Earthquake Details | Seismogram Explanation |
|---|---|
| Location: Volcano Islands, Japan Region Date: September 28, 2007 Time: 13:38:58 UTC; 8:38:58 am CDT. Latitude: 21.98 N Longitude: 142.68 E Magnitude: 7.4 Mw Depth: 263 km Distance: 100.29 deg (6,925 miles from Milwaukee) | Pdiff-wave arrival time: 13:52:14 UTC; 8:52:14 am CDT. Sdiff-wave arrival time: 14:03:26 UTC; 9:03:26 am CDT. SKS-wave arrival time: 14:02:26 UTC; 9:02:26 am CDT. SP-wave arrival time: 14:04:56 UTC; 9:04:56 am CDT. The vertical axis is in units of displacement in centimeters. The horizontal axis is in units of time in seconds. The beginning of the file is the origin of the event. |
