University of Wisconsin Milwaukee Department of Geosciences
9/28/04 Central California 6.0 Mw Earthquake
9/28/04 Central California Focal Mechanism
9/28/04 Central California Earthquake Focal Mechanism


Earthquake Details

Seismogram Explanation

Location: Central California

P-wave arrival time: not verified.

Date: September 28, 2004

S-wave arrival time: not verified.

Time: 17:15:24 (UTC); 12:15:24 pm (local)

The vertical axis is in units of displacement in centimeters.

Latitude: 35.81 N

The horizontal axis is in units of time in seconds.

Longitude: 120.37 W

The beginning of the file is the origin of the event.

Magnitude: 6.0 Mw

Depth: 12 km

Distance: 25.99 deg (1,795 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)

Back to Map | UWM Geosciences Homepage | UWM College of Letters and Sciences

[ UWM Home Page ]