ShakeMap

Time: Wed April 15, 2015 10:14:48 (UTC)
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Depth: 11.08 km
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Event ID: 60999111
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Location: 46.345, -122.248

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
60999111 2.8 4/15/2015 03:14:48 PDT N46.3433 W122.2390 12.51 km
Magnitude Bias: MMI PGA PGV PSA 0.3 PSA 1.0 PSA 3.0
-1.44 -0.02 0.15 0.14 0.15 0.48

Seismic Stations

CC.JRO: Johnston Ridge Observatory Agency: Cascade Chain Volcano Monitoring
Lat: 46.2751 Lon: -122.2178 Distance: 14.7 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)
--.BHE 0.0089 0.0393 0.0257 0.0032 0.0002
--.BHN 0.0085 0.0333 0.0328 0.0030 0.0002

CC.STD: Studebaker Ridge, Mount St Helens, WA Agency: Cascade Volcano Obervatory
Lat: 46.2376 Lon: -122.2240 Distance: 17.2 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 0.0247 0.1262 0.1041 0.0051 0.0004
--.BHN 0.0185 0.1081 0.0327 0.0022 0.0002

CC.SWF2: Southwest Flank, Mt. St. Helens, WA Agency: Cascade Volcano Obervatory
Lat: 46.1784 Lon: -122.2168 Distance: 22.3 km from source
Intensity: 2.5
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.0780 0.2624 0.3768 0.0151 0.0011
--.BHN 0.0629 0.3212 0.3237 0.0106 0.0010

CC.VALT: Mt. St. Helens Crater, WA Agency: Cascade Volcano Obervatory
Lat: 46.2142 Lon: -122.1893 Distance: 19.4 km from source
Intensity: 2.0
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.0391 0.2165 0.3243 0.0129 0.0010
--.BHN 0.0412 0.1370 0.2069 0.0099 0.0008

TA.E04D: Cinebar, WA, USA Agency: USArray Transportable Array
Lat: 46.5566 Lon: -122.5673 Distance: 36.8 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)
--.BHE 0.0042 0.0247 0.0078 0.0007 0.0001
--.BHN 0.0050 0.0224 0.0087 0.0005 0.0001

UW.LON: Longmire CREST broad-band Agency: Pacific Northwest Regional Seismic Network
Lat: 46.7506 Lon: -121.8096 Distance: 57.3 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)
--.BHE 0.0012 0.0067 0.0032 0.0002 0.0000 -T
--.BHN 0.0016 0.0098 0.0033 0.0002 0.0000 -T

(UW.LON) PGA: n/a PGV: n/a N46.75 W121.81 (CC.STD) PGA: 0.13 PGV: 0.02 N46.24 W122.22 (CC.SWF2) PGA: 0.32 PGV: 0.08 N46.18 W122.22 (TA.E04D) PGA: 0.02 PGV: 0.01 N46.56 W122.57 (CC.VALT) PGA: 0.22 PGV: 0.04 N46.21 W122.19 (CC.JRO) PGA: 0.04 PGV: 0.01 N46.28 W122.22 Epicenter: N46.34 W122.24 M=2.8