ShakeMap

Time: Thu September 3, 2015 22:29:21 (UTC)
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Depth: 10.42 km
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Event ID: 61074446
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Location: 46.356, -122.263

Instrument Intensity

Regional

Download: JPG | PS.ZIP

Peak Ground Acceleration

Regional

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Peak Ground Velocity

Regional

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Uncertainty

Regional

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Downloads

Regional
intensity JPG | PS.ZIP
acceleration JPG | PS.ZIP
velocity JPG | PS.ZIP
spectral 0.3 JPG | PS.ZIP
spectral 1.0 JPG | PS.ZIP
spectral 3.0 JPG | PS.ZIP
uncertainty JPG | PS.ZIP
tv map JPG | PS.ZIP
tv map bare JPG | PS.ZIP
tv info sheet TXT
grid XYZ.ZIP | XML.ZIP
gis ZIP
station TXT | XML
metadata TXT

Earthquake

Event ID Magnitude Date Time Lat Lon Depth
61074446 3.1 9/3/2015 15:29:21 PDT N46.3562 W122.2632 11.53 km
Magnitude Bias: MMI PGA PGV PSA 0.3 PSA 1.0 PSA 3.0
-1.29 0.48 0.38 0.12 0.38 0.86

Seismic Stations

CC.JRO: Johnston Ridge Observatory Agency: Cascade Chain Volcano Monitoring
Lat: 46.2751 Lon: -122.2178 Distance: 15.0 km from source
Intensity: 1.3
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.0202 0.1082 0.0746 0.0043 0.0004 -T
--.BHN 0.0193 0.0777 0.0603 0.0049 0.0003 -T

CC.STD: Studebaker Ridge, Mount St Helens, WA Agency: Cascade Volcano Obervatory
Lat: 46.2376 Lon: -122.2240 Distance: 17.8 km from source
Intensity: 2.6
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.0977 0.4265 0.1827 0.0108 0.0023
--.BHN 0.0549 0.2542 0.0845 0.0055 0.0019

CC.SWF2: Southwest Flank, Mt. St. Helens, WA Agency: Cascade Chain Volcano Monitoring
Lat: 46.1783 Lon: -122.2167 Distance: 23.2 km from source
Intensity: 2.9
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.1099 0.5333 0.5624 0.0179 0.0016
--.BHN 0.1418 0.6035 0.4566 0.0202 0.0022

CC.VALT: Mt. St. Helens Crater, WA Agency: Cascade Volcano Obervatory
Lat: 46.2142 Lon: -122.1893 Distance: 20.4 km from source
Intensity: 2.6
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.0741 0.3529 0.5012 0.0230 0.0016
--.BHN 0.0895 0.3378 0.4899 0.0211 0.0016

TA.E04D: Cinebar, WA, USA Agency: USArray Transportable Array
Lat: 46.5566 Lon: -122.5673 Distance: 34.2 km from source
Intensity: 1.5
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.0262 0.1210 0.0536 0.0033 0.0004
--.BHN 0.0198 0.1099 0.0324 0.0031 0.0002

UW.YACT: Amboy, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 45.9325 Lon: -122.4193 Distance: 50.0 km from source
Intensity: 1.0
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.HHE 0.0049 0.0251 0.0209 0.0008 0.0001 -T
--.HHN 0.0036 0.0212 0.0116 0.0011 0.0001 -T

(CC.STD) PGA: 0.43 PGV: 0.10 N46.24 W122.22 (UW.YACT) PGA: n/a PGV: n/a N45.93 W122.42 (CC.SWF2) PGA: 0.60 PGV: 0.14 N46.18 W122.22 (TA.E04D) PGA: 0.12 PGV: 0.03 N46.56 W122.57 (CC.VALT) PGA: 0.35 PGV: 0.09 N46.21 W122.19 (CC.JRO) PGA: n/a PGV: n/a N46.28 W122.22 Epicenter: N46.36 W122.26 M=3.1