Fault “Corrosion” by Fluid Injection: A Potential Cause of the November 2017 5.5 Korean Earthquake

Table 2

Earthquake source parameters.

Source		(10^17 Nm)	Fault plane			-axis		-axis
			(°)	(°)	(°)	(°)	(°)	(°)	(°)
U.S. Geological Survey [95]	5.5	2.01	203	45	108	1	101	78	105
Kim et al. [7]	5.4	ND	216	65	150	1	268	38	177
Grigoli et al. [6]	5.5	1.73	221	66	130	12	283	51	178
Lee et al. [5]	5.56	2.45	214	43	141	12	090	55	198

Focal mechanism determinations for the Pohang mainshock. Symbols denote: , strike; , dip; , rake; , plunge; and , azimuth; ND indicates “not determined”; and denote moment magnitude and seismic moment.