A Review of Earthquake Source Parameters in the Main Ethiopian Rift

Table 1

Source parameters of earthquakes compiled from previously published works and the ISC catalog across the MER. The fault plane solutions are shown in Figures 2(a), 6, and 7, and the final column refers to the work in which the results are published: FJ98 [11], Ay6 [14], Ay7 [14], IK18 [35], and ISC catalog.

Date	Origin time	Longitude (°)	Latitude (°)	Strike (°)	Dip (°)	Rake (°)	Depth (km)	Magnitude	Reference
1987/09/28		36.76	5.79	189	41	-90	9	5.6	FJ98
1987/09/25		36.83	5.49	57	57	127	14	5.6	FJ98
200/05/10	08 : 43 : 28.2	41.08	9.89	126; 288	71; 20	-84; -107	7	4.4	Ay6
2000/05/10	23 : 17 : 52.90	41.08	9.94	86; 310	33; 65	-111; -51	5	4.3	Ay6
2000/05/12	17 : 54 : 02.1	41.04	9.93	91; 290	45; 46	-104; -76	7	4.2	Ay6
200/05/16	20 : 47 : 48.6	41.05	9.91	103; 257	59; 33	-76; -112	6	4.2	Ay6
2002/08/08	21 : 17 : 08.36	39.9798	13.5061	312; 146	56; 44	-260; -79	5	5.0	Ay7
2002/08/10	12 : 01 : 18.68	40.0653	13.865	361; 196	39; 51	258; -80	6	4.4	Ay7
2002/08/10	15 : 55 : 58.41	40.0582	13.5475	322; 172	41; 53	246; -71	7	5.6	Ay7
2002/08/10	16 : 45 : 52.88	40.0193	13.4892	296; 145	55; 39	249; -63	6	4.6	Ay7
2002/08/14	20 : 49 : 22.56	40.1098	13.5665	363; 210	35; 58	247; -74	5	4.5	Ay7
2002/08/25	06 : 02 : 29.12	39.8645	13.4884	317; 143	46; 43	265; -85	6	4.4	Ay7
2007/11/04	21 : 06 : 17	39.9883	13.5427	10.8; 165.2	34.8; 57.9	-68.6; -104.3	10	3.26	IK18
2007/06/11	23 : 44 : 06	39.9697	13.542	165.8; 330.8	38.9; 52.1	-78.2; -99.4	10	2.71	IK18
2008/05/19	17 : 42 : 52	40.169	9.3733	178.8; 65.4	36.1; 73.9	-151.9; -57.3	3	3.57	IK18
2008/05/20	02 : 06 : 00	40.1503	9.3802	67.8; 202.8	34.3; 64.2	-50.4; -113.5	6	4.52	IK18
2008/05/20	02 : 59 : 34	40.0918	9.3188	49.6; 205.7	27.2; 64.9	-68.4;-100.7	4	3.84	IK18
2008/05/26	23 : 32 : 32	40.0098	9.209	82; 192.7	34.9; 76.2	-24.7; -22.3	8	3.76	IK18
2008/05/28	06 : 34 : 49	40.0347	9.2547	76.4; 200.2	31.9; 70.9	-38.3; -16.1	7	4.15	IK18
1999/01/05	18 : 27 : 41.53	37.5589	5.7931	66; 229	47; 44	-78; -102	10	4.6	ISC
1999/06/17	12 : 34 : 55.94	41.3562	10.669	205; 345	30; 66	-54; -109	10	4.4	ISC
2000/07/11		42.228	8.9081	98; 270	43; 47	-84; -97	10	4.7	ISC
2000/05/15	08 : 33 : 03.21	36.229	5.5711	23; 259	49; 58	-134; -51	10	4.9	ISC
2000/05/16	20 : 47 : 53.79	41.062	10.2283	113; 241	60; 43	-57; -133	10	4.4	ISC
2005/09/28	16 : 31 : 38.09	40.687	12.4089	141; 341	55; 36	-102; -74	12	5.1	ISC
2005/09/24	15 : 15 : 34.11	40.4867	12.6171	170; 335	44; 47	-80; -100	12	5.2	ISC
2010/10/02	23 : 24 : 41.94	40.612	11.957	152; 342	50; 41	-97; -82	10	4.9	ISC
2006/04/10	13 : 36 : 48.7	40.26	14.87	172; 335	29; 62	-75; -98	19.9	4.9	ISC
2006/12/21	09 : 07 : 46.95	43.6924	12.0314	133; 270	59; 40	-64; -126	14.7	5.0	ISC
2007/10/20	09 : 06 : 31.00	40.9369	13.3497	10; 110	65; 71	-21; -153	10	5.0	ISC
2008/04/29	00 : 06 : 59.8	42.00	11.7204	96; 300	50; 43	-106; -72	12	5.0	ISC
2009/12/22	03 : 39 : 08.58	40.7081	10.338	22; 146	65; 39	-58; -139	18.7	5.0	ISC
2010/11/14	06 : 32 : 27.14	44.0303	11.9199	90; 299	54; 40	-108; -68	12	5.5	ISC
2007/02/26	08 : 48 : 57.4	43.19	9.77	73; 266	58; 32	-97; -79	12	5.0	ISC
2010/10/23	11 : 08 : 24.8	36.08	4.82	23; 203	55; 35	-90; -90	21	5.0	ISC
2011/03/19	20 : 08 : 10	38.62	6.81	17; 223	51; 42	-108; -70	12	5.0	ISC
2011/06/17	09 : 16 : 12.57	41.76	13.46	10; 101	79; 88	-2; -169	12	5.6	ISC
2011/12/03	02 : 14 : 42.3	36.73	4.75	5; 242	51; 56	-134; -50	12	5.1	ISC
2013/09/18	09 : 04 : 23.66	39.3635	15.8229	31; 130	63; 74	-18; 1-51	22.6	5.1	ISC
2017/01/27	27 : 09 : 24	38.0	7.61	3; 191	45; 45	-96; -84	12	5.3	ISC
2018/03/24	07 : 31 : 20	39.9	13.51	19; 173	56; 37	-75; -111	12	5.2	ISC