ShakeMap

Time: Wed January 3, 2018 08:36:25 (UTC)
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Depth: 10.27 km
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Event ID: 61362346
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Location: 46.256, -122.057

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
61362346 3.9 // :: N46.25570 W122.05630 10.23 km
Magnitude Bias: MMI PGA PGV PSA 0.3 PSA 1.0 PSA 3.0
-0.85 0.27 0.13 0.28 0.10 0.06

Seismic Stations

CC.JRO: Johnston Ridge Observatory Agency: Cascade Chain Volcano Monitoring
Lat: 46.27510 Lon: -122.21780 Distance: 16.23 km from source
Intensity: 3.1
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.1212 0.6562 0.3755 0.0444 0.0024
--.BHN 0.2478 0.8925 0.6795 0.0723 0.0053

CC.STD: Studebaker Ridge, Mount St Helens, WA Agency: Cascade Chain Volcano Monitoring
Lat: 46.23749 Lon: -122.22421 Distance: 16.60 km from source
Intensity: NaN
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.4379 1.9148 1.4073 0.0594 0.0057
--.BHN 1.3787 -G 4.8255 -G 3.2563 -G 0.1784 -G 0.0189 -G

CC.VALT: Mt. St. Helens Crater, WA Agency: Cascade Volcano Obervatory
Lat: 46.21422 Lon: -122.18925 Distance: 15.18 km from source
Intensity: 3.2
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.BHE 0.3121 1.1205 1.4579 0.2365 0.0128
--.BHN 0.3165 1.2136 2.9830 0.1730 0.0125

UW.LON: Longmire CREST broad-band Agency: Pacific Northwest Regional Seismic Network
Lat: 46.75060 Lon: -121.80960 Distance: 59.07 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 0.0144 0.0476 0.0613 0.0097 0.0006
--.BHN 0.0124 0.0730 0.0412 0.0036 0.0003

UW.YACT: Amboy, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 45.93250 Lon: -122.41930 Distance: 46.69 km from source
Intensity: 1.9
Station Comp Max Vel (cm/s) Max Acc (%g) PSA: 0.3 sec (%g) 1.0 sec (%g) 3.0 sec (%g)
--.HHE 0.0444 0.2791 0.1529 0.0073 0.0008
--.HHN 0.0352 0.1820 0.0812 0.0094 0.0008

(UW.LON) PGA: 0.07 PGV: 0.01 N46.75 W121.81 (CC.STD) PGA: n/a PGV: n/a N46.24 W122.22 (UW.YACT) PGA: 0.28 PGV: 0.04 N45.93 W122.42 (CC.VALT) PGA: 1.21 PGV: 0.32 N46.21 W122.19 (CC.JRO) PGA: 0.89 PGV: 0.25 N46.28 W122.22 Epicenter: N46.26 W122.06 M=3.9