GPS-based slip models of one Mw 7.2 and twenty moderate earthquakes along the Sumatran plate boundary

Wong, Nathanael Z.; Feng, Lujia; Hill, Emma M.

doi:10.1186/s40562-019-0138-y

Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 1 Summary of the preferred model for all events modeled in this study

From: GPS-based slip models of one M_w 7.2 and twenty moderate earthquakes along the Sumatran plate boundary

Date	M _w	Patch center		Length (km)	Width (km)	Depth (km)		Strike (°)	Dip (°)	Rake (°)	Slip (m)	Appendix
Date	M _w	Lon (°)	Lat (°)	Length (km)	Width (km)	Burial	Locking	Strike (°)	Dip (°)	Rake (°)	Slip (m)	Section	Page
Megathrust events
20050226	6.7	95.442	2.859	28.12	16.67	15.5	18.6	302.6	10.8	35.6	1.0043	S1	3
20050514	6.7	98.241	0.502	28.12	16.67	32.6	38.0	324.3	19.3	129.3	1.0043	S1	4
20050705^a	6.6	97.055	1.778	24.66	15.00	23.2	27.0	332.6	14.5	142.2	0.9013	S1	5
20060727	6.3	97.035	1.567	16.63	10.91	20.7	23.2	332.1	13.4	98.1	0.6515	S1	6
20060811	6.2	96.302	2.217	14.59	9.817	14.3	16.2	313.2	11.0	134.1	0.5846	S1	7
20070407	6.1	95.642	2.825	12.79	8.831	17.9	19.8	301.5	12.3	55.1	0.5247	S1	8
20070920	6.7	99.996	− 1.989	28.12	16.67	31.7	35.7	315.8	13.9	67.6	1.0043	S1	9
20070929	6.0	95.634	2.835	11.22	7.943	18.2	19.9	301.5	12.5	51.8	0.4709	S1	10
20080104	6.0	100.769	− 2.890	11.22	7.943	37.3	39.8	332.7	17.9	122.1	0.4709	S1	11
20080122	6.2	97.417	1.057	14.59	9.817	21.6	23.8	325.2	13.3	52.0	0.5846	S1	12
20080303	6.2	99.760	− 2.142	14.59	9.817	23.9	25.8	317.6	11.0	115.4	0.5846	S1	13
20090415	6.3	100.272	− 3.319	16.63	10.91	18.2	20.3	327.1	11.2	174.2	0.6515	S1	14
20100509^a	7.2	95.883	3.384	54.20	23.81	34.5	44.1	303.9	19.8	76.8	1.7254	S1	15
20110118	5.9	96.175	2.343	9.840	7.145	14.8	16.2	308.8	11.5	63.9	0.4226	S1	17
20110406	6.0	97.206	1.681	11.22	7.943	27.2	29.5	331.9	16.4	131.3	0.4709	S1	18
20120725	6.4	95.953	2.281	18.97	12.13	10.8	12.5	307.6	8.2	126.7	0.7259	S1	19
Non-megathrust thrust events
20050410	6.7	99.486	− 1.775	28.12	16.67	0.3	14.9	323	56	91.1	1.0043	S2	20
20090816	6.7	99.408	− 1.539	28.12	16.67	0.8	15.5	339.1	61.9	98.0	1.0043	S2	21
Strike-slip events
20050408	6.1	97.913	− 0.198	16.37	7.816	0.0	7.6	75	78	− 24.2	0.4633	S3	22
20060516	6.8	97.011	0.016	45.92	13.31	20.0	33.2	358	82	51.9	1.0886	S3	23
20070306^b	6.4 & 6.3	100.538	− 0.628	32.24	11.09	0	11.0	150	84	140.7	0.8122	S3	24

^aThe preferred model for the 5 July 2005 M_w 6.6 Nias event and for the 9 September 2010 M_w 7.2 Simeulue event was taken to be at the lobe of a local maxima closest to the positions given by the teleseismic catalogs instead of at the global maxima
^bThis earthquake was modeled as an M_w 6.56 event equivalent to the energy release by the combined M_w 6.4 and 6.3 events because these events occurred too close in time and space to resolve the individual displacements at the GPS stations

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