Station IU NAI - Nairobi, Kenya

Network: IU - Global Seismograph Network (GSN - IRIS/USGS)

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
NAI Nairobi, Kenya (-1.27, 36.80) 1995-01-05 / 1995-09-18 1692 m
Crust2 Type:X5,thick Rift 0.25 km sediments
Thickness Estimate:43 km
Thickness StdDev:5.6 km
Vp/Vs Estimate:1.81
Vp/Vs StdDev:0.12
Vs Estimate:3.647 km/s
Poisson's Ratio:0.28
Peak Value:0.04
Assumed Vp:6.601 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.683
Nearby stations H:43 km +- 1.0 km
(2.0 deg) Vp/Vs:1.81 +- 0.01

8 with match > 90% ( 36.363636 %) and 18 with match > 80% ( 81.818184 %) out of 22.

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Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 43 km 1.81 6.601 km/s 3.647 km/s 0.28
Crust2.0 38 km 1.77 6.601 km/s 3.729 km/s 0.27 X5,thick Rift 0.25 km sediments
Global Maxima 43 km 1.81 6.601 km/s 3.647 km/s 0.28 amp=0.04444263
Local Maxima 1 30 km 2.09 6.601 km/s 3.158 km/s 0.35 amp=0.039772265
Local Maxima 2 36 km 2.00 6.601 km/s 3.304 km/s 0.33 amp=0.021515675
Local Maxima 3 27 km 1.64 6.601 km/s 4.025 km/s 0.20 amp=0.019784171
Local Maxima 4 51 km 1.93 6.601 km/s 3.411 km/s 0.32 amp=0.018343525
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps5.25 SECOND
PpPs18.20 SECOND
PsPs/PpSs23.45 SECOND

Events Processed for this Station

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View Record Section

Plot maxima for each earthquake.

Events Used in the Stack

(18 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
96.582985 88.8 deg 77.427 deg Samar, Philippines 1995/05/05 03:53:47 GMT (12.6, 125.3) 33 km 6.2 MB, 7.0 MS, 7.1 UNKNOWN, 7.0 MW
96.5206 62.3 deg 60.899 deg Myanmar-India Border Region 1995/05/06 01:59:07 GMT (25.0, 95.3) 122 km 6.4 MB, 6.5 UNKNOWN, 6.4 MW
94.855896 89.2 deg 78.056 deg Samar, Philippines 1995/04/21 00:09:56 GMT (12.0, 125.7) 33 km 6.1 MB, 6.9 MS, 6.9 UNKNOWN, 6.8 MW
94.82455 63.4 deg 203.731 deg Southern Mid-Atlantic Ridge 1995/05/23 22:10:11 GMT (-56.1, -3.2) 10 km 5.3 MB, 6.6 MS, 6.8 UNKNOWN, 6.7 MW
94.321686 90.2 deg 83.756 deg Mindanao, Philippines 1995/04/20 08:45:10 GMT (6.3, 126.8) 85 km 6.2 MB, 6.6 UNKNOWN, 6.5 MW
94.22502 88.1 deg 98.305 deg Timor Region 1995/05/14 11:33:21 GMT (-8.4, 125.1) 33 km 6.1 MB, 6.9 MS, 7.1 UNKNOWN, 6.9 MW
94.07956 58.8 deg 269.663 deg Central Mid-Atlantic Ridge 1995/05/18 00:06:26 GMT (-0.9, -22.0) 10 km 6.2 MB, 6.1 MS, 6.8 UNKNOWN, 6.7 MW
90.450455 91.7 deg 88.192 deg Halmahera, Indonesia 1995/05/04 02:18:51 GMT (1.9, 128.5) 55 km 6.0 MB, 6.0 MS, 6.1 UNKNOWN, 6.1 MW
89.27652 81.5 deg 87.136 deg Celebes Sea 1995/03/06 18:43:42 GMT (2.7, 118.2) 33 km 5.5 MB, 5.8 MS, 6.3 UNKNOWN, 6.1 MW
87.15613 43.5 deg 106.922 deg South Indian Ocean 1995/07/27 05:51:17 GMT (-12.6, 79.2) 10 km 6.2 MB, 5.9 MS, 6.0 UNKNOWN, 6.0 MW
85.689705 49.1 deg 36.674 deg Hindu Kush Region, Afghanistan 1995/05/16 03:35:03 GMT (36.5, 70.9) 190 km 5.7 MB, 5.9 UNKNOWN, 5.8 MW
85.1947 90.2 deg 87.491 deg Northern Molucca Sea 1995/01/21 07:30:23 GMT (2.5, 126.9) 47 km 6.1 MB, 6.1 MS
84.78078 90.6 deg 91.388 deg Halmahera, Indonesia 1995/02/13 12:29:55 GMT (-1.4, 127.4) 33 km 5.8 MB, 6.0 MS, 6.1 UNKNOWN, 5.9 MW
84.45288 78.6 deg 304.689 deg Northern Mid-Atlantic Ridge 1995/04/17 07:14:35 GMT (33.8, -38.6) 10 km 5.8 MB, 5.8 MS, 5.9 UNKNOWN, 6.1 MW
83.892815 49.3 deg 36.879 deg Afghanistan-Tajikistan Bord Reg. 1995/08/17 23:14:19 GMT (36.5, 71.2) 239 km 5.7 UNKNOWN, 5.4 MB, 5.6 MW
82.96096 89.4 deg 78.491 deg Samar, Philippines 1995/05/08 18:08:09 GMT (11.6, 125.9) 33 km 5.6 MB, 6.2 MS, 6.3 UNKNOWN, 6.3 MW
82.674095 72.1 deg 95.036 deg Java Sea 1995/05/13 21:00:54 GMT (-5.2, 108.9) 554 km 5.7 MB, 5.9 UNKNOWN, 5.8 MW
81.00485 89.5 deg 84.817 deg Mindanao, Philippines 1995/02/19 00:17:48 GMT (5.2, 126.2) 104 km 5.9 MB, 6.1 UNKNOWN, 6.1 MW

Losers

(4 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
96.064766 88.7 deg 77.41 deg Samar, Philippines 1995/05/05 04:39:13 GMT (12.6, 125.2) 55 km 5.6 MB, 6.5 UNKNOWN
89.25195 63.4 deg 41.358 deg Southern Xinjiang, China 1995/08/17 00:59:57 GMT (41.6, 88.8) 0.0 km 6.0 MB
59.847595 63.5 deg 41.297 deg Southern Xinjiang, China 1995/05/15 04:05:58 GMT (41.7, 88.8) 0.0 km 6.1 MB
41.003437 97.5 deg 92.992 deg Irian Jaya Region, Indonesia 1995/03/13 10:31:50 GMT (-2.8, 134.3) 33 km 5.5 MB, 5.7 MS, 5.6 UNKNOWN, 6.1 MW