Search Space Reduction for Determination of Earthquake Source Parameters Using PCA and -Means Clustering

Table 1

Source parameters of the Okada model.

Parameter	Unit	Description
	km	Distance from the reference point to the east
	km	Distance from the reference point to the north
Depth	km	Depth of source
Strike	Degree	Angle of fault relative north
Dip	Degree	Angle between the fault and a horizontal plane
Length	km	Length of fault
Width	km	Width of fault
Rake	Degree	Angle of slip relative to the Width direction
Slip	mm	Dislocation in rake direction
Open	km	Dislocation in tensile component