Station CC SWFL - Southwest Flank, Mt. St. Helens, WA

Network: CC - Cascade Chain Volcano Monitoring

Nearby stations (2 deg radius)

Station Name (Lat, Lon) Start / End Elevation
SWFL Southwest Flank, Mt. St. Helens, WA (46.19, -122.20) 2006-10-12 / 2599-12-31 2268 m
Crust2 Type:L8,thin continental arc, Cordilleras, 0.5 km seds.
Thickness Estimate:34 km
Thickness StdDev:14 km
Vp/Vs Estimate:2.10
Vp/Vs StdDev:0.21
Vs Estimate:3.13 km/s
Poisson's Ratio:0.35
Peak Value:0.14
Assumed Vp:6.566 km/s
Ps Weight:0.33333334
PpPs Weight:0.33333334
PsPs Weight:0.33333328
Residual Complexity:0.675
Nearby stations H: +-
(2.0 deg) Vp/Vs: +-

0 with match > 90% ( 0.0 %) and 3 with match > 80% ( 15.789474 %) out of 19.

Download stack as xyz text file.

Azimuth Distribution of Events:

Prior Results for this Station

Study Thickness Vp/Vs Vp Vs Poissons Ratio Extra
EARS 34 km 2.10 6.566 km/s 3.13 km/s 0.35
Crust2.0 34 km 1.77 6.566 km/s 3.707 km/s 0.27 L8,thin continental arc, Cordilleras, 0.5 km seds.
Global Maxima 34 km 2.10 6.566 km/s 3.13 km/s 0.35 amp=0.14068885
Local Maxima 1 58 km 1.63 6.566 km/s 4.035 km/s 0.20 amp=0.07931348
Local Maxima 2 38 km 1.99 6.566 km/s 3.308 km/s 0.33 amp=0.07144631
Local Maxima 3 52 km 1.73 6.566 km/s 3.79 km/s 0.25 amp=0.06666567
Local Maxima 4 62 km 1.83 6.566 km/s 3.588 km/s 0.29 amp=0.0479344
Predicted Arrivals for vertical incidence
(zero ray parameter)
Ps5.60 SECOND
PpPs15.80 SECOND
PsPs/PpSs21.40 SECOND

Events Processed for this Station

Download zip of receiver functions as SAC

View Record Section

Plot maxima for each earthquake.

Events Used in the Stack

(3 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude
88.85474 41.9 deg 122.547 deg North Of Honduras 2009/05/28 08:24:45 GMT (16.7, -86.2) 10 km 6.7 MB, 7.2 MS, 7.3 MW, 7.3 MW
85.959076 76.1 deg 229.654 deg Samoa Islands Region 2009/10/19 22:49:38 GMT (-15.4, -172.3) 18 km 6.2 MB, 5.7 MS, 6.0 MW, 5.9 MW
81.782974 92.7 deg 225.537 deg Kermadec Islands Region 2009/05/16 00:53:52 GMT (-31.5, -178.8) 55 km 6.1 MB, 6.5 MW, 6.3 MW

Losers

(16 events)
Radial Match Distance Baz FERegion Time Lat/Lon Depth Magnitude Reason
87.8768 50.8 deg 306.488 deg Kuril Islands 2008/07/24 01:43:16 GMT (51.0, 157.6) 27 km 6.0 MB, 6.0 MS, 6.2 MW, 6.2 MW
81.67787 69.7 deg 300.213 deg Near East Coast Of Honshu, Japan 2009/06/06 05:52:43 GMT (35.5, 140.9) 34 km 5.8 MB, 5.4 MS, 5.8 MW, 5.7 MW
80.21688 91.6 deg 224.392 deg Kermadec Islands Region 2008/12/09 06:23:59 GMT (-31.2, -176.9) 18 km 6.2 MB, 6.7 MS, 6.8 MW, 6.7 MW
79.49472 36.5 deg 298.939 deg Andreanof Islands, Aleutian Is. 2009/06/22 19:55:24 GMT (51.3, -178.2) 35 km 5.6 MB, 5.6 MW, 5.6 MW
78.39831 74.9 deg 171.476 deg Easter Island Region 2008/08/19 10:58:00 GMT (-28.5, -112.8) 9.0 km 5.5 MB, 5.3 MS, 5.7 MW, 5.7 MW
78.0576 35.9 deg 19.335 deg Baffin Bay 2009/07/07 19:11:46 GMT (75.4, -72.5) 19 km 5.9 MB, 5.7 MS, 6.1 MW, 6.0 MW
76.21666 89.8 deg 330.823 deg Qinghai, China 2009/08/28 01:52:06 GMT (37.7, 95.7) 13 km 6.2 MB, 6.2 MS, 6.2 MW, 6.2 MW
73.03498 77.8 deg 284.839 deg Mariana Islands 2008/12/02 12:31:43 GMT (19.1, 145.8) 137 km 5.9 MB, 5.9 MW, 5.9 MW
71.73939 40.9 deg 130.285 deg Guatemala 2009/05/03 16:21:47 GMT (14.6, -91.2) 124 km 5.6 MB, 6.2 MW, 6.2 MW
71.64555 88.6 deg 243.664 deg Vanuatu Islands 2009/05/29 06:20:14 GMT (-17.0, 168.3) 13 km 5.5 MB, 5.5 MS, 5.7 MW, 5.6 MW
65.96839 92.1 deg 224.788 deg Kermadec Islands Region 2009/05/24 00:58:02 GMT (-31.5, -177.7) 4.0 km 5.6 MB, 5.9 MS, 6.0 MW, 5.8 MW
59.780457 93.5 deg 347.596 deg Tajikistan-Xinjiang Border Reg. 2008/10/05 16:11:10 GMT (39.5, 73.9) 35 km 5.6 MB
56.53046 88.7 deg 303.178 deg Southwestern Ryukyu Isl., Japan 2009/08/18 13:17:35 GMT (23.5, 123.5) 5.7 km 5.6 MB, 5.2 MS
51.801006 86.0 deg 248.113 deg Santa Cruz Islands 2009/10/07 22:26:38 GMT (-12.1, 166.6) 35 km 5.6 MB
51.088062 85.6 deg 231.529 deg South Of Fiji Islands 2009/06/08 04:33:19 GMT (-22.2, -179.6) 612 km 5.5 MW, 5.2 MB
50.996006 77.0 deg 230.446 deg Tonga Islands 2009/05/13 21:31:17 GMT (-15.8, -173.5) 85 km 5.8 MW, 5.3 MB, 5.8 MW