7/25/04 Southern Sumatra, Indonesia 7.2 Mw Earthquake Recorded at UWM

**7/25/04 Southern Sumatra, Indonesia Focal Mechanism**

Earthquake Details	Seismogram Explanation
Location: Southern Sumatra, Indonesia	Pdiff-wave arrival time: Not verified.
Date: July 15, 2004	Sdiff-wave arrival time: Not verified.
Time: 14:35:18 (UTC); 9:35:18 am (local)	The vertical axis is in units of displacement in centimeters.
Latitude: 2.40 S	The horizontal axis is in units of time in seconds.
Longitude: 104.02 E	The beginning of the file is the origin of the event.
Magnitude: 7.2 Mw	There are few surface waves because this event was so deep.
Depth: 593 km
Distance: 137.95 deg (9,525 miles from Milwaukee)

Updated as of by Brett Ketter

Seismograms created using Seismic Analysis Code (SAC; Lawrence Livermore National Laboratory)
Focal mecanisms created using Generic Mapping Tools (GMT; Wessel and Smith; University of Hawaii, Manoa)

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Earthquake Details

Seismogram Explanation