ShakeMap

Time: Mon August 23, 2021 22:27:26 (UTC)
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Depth: 2.58 km
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Event ID: 61761777
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Location: 48.602, -121.957

Instrument Intensity

Regional

Download: JPG | PS.ZIP

Peak Ground Acceleration

Regional

Download: JPG | PS.ZIP

Peak Ground Velocity

Regional

Download: JPG | PS.ZIP

Uncertainty

Regional

Download: JPG | PS.ZIP

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
61761777 2.8 // :: N48.60030 W121.95300 2.44 km
Magnitude Bias: MMI PGA PGV
-1.41 0.48 0.59

Seismic Stations

UW.QBRO: Marysville, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 48.07397 Lon: -122.12118 Distance: 59.88 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)
01.HNN 0.0044 0.0421 -- -- --
01.HNE 0.0031 0.0387 -- -- --
01.HNZ 0.0049 0.1551 -- -- --

UW.QCDG: Casa Del Gato; Greebeck, Wa, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 48.10002 Lon: -122.58696 Distance: 72.77 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)
01.HNN 0.0027 0.0047 -- -- --
01.HNE 0.0030 0.0037 -- -- --
01.HNZ 0.0022 0.0051 -- -- --

UW.QCON: Conway, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 48.34024 Lon: -122.34459 Distance: 40.93 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)
01.HNN 0.0061 0.0142 -- -- --
01.HNE 0.0060 0.0141 -- -- --
01.HNZ 0.0190 0.0572 -- -- --

UW.QEGA: Everett, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 47.98284 Lon: -122.21261 Distance: 71.34 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)
01.HNN 0.0037 0.0184 -- -- --
01.HNE 0.0025 0.0112 -- -- --
01.HNZ 0.0029 0.0186 -- -- --

UW.QHSH: Bellingham, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 48.76047 Lon: -122.49662 Distance: 43.77 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)
01.HNN 0.0060 0.0090 -- -- --
01.HNE 0.0040 0.0111 -- -- --
01.HNZ 0.0026 0.0175 -- -- --

UW.QJLF: Blaine, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 48.98512 Lon: -122.74295 Distance: 72.01 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)
01.HNN 0.0034 0.0107 -- -- --
01.HNE 0.0038 0.0092 -- -- --
01.HNZ 0.0069 0.0553 -- -- --

UW.QKTN: Kingston, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 47.80860 Lon: -122.52930 Distance: 97.88 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)
01.HNN 0.0027 0.0131 -- -- --
01.HNE 0.0030 0.0091 -- -- --
01.HNZ 0.0020 0.0126 -- -- --

UW.QPBC: Mountlake Terrace, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 47.80180 Lon: -122.32652 Distance: 93.04 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)
01.HNN 0.0037 0.0059 -- -- --
01.HNE 0.0033 0.0061 -- -- --
01.HNZ 0.0029 0.0199 -- -- --

UW.QPLV: Monroe, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 47.85852 Lon: -121.90920 Distance: 82.58 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)
01.HNN 0.0056 0.0126 -- -- --
01.HNE 0.0030 0.0093 -- -- --
01.HNZ 0.0046 0.0265 -- -- --

UW.QRMB: Shoreline, WA, USA Agency: Pacific Northwest Regional Seismic Network
Lat: 47.77483 Lon: -122.38951 Distance: 97.36 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)
01.HNN 0.0024 0.0050 -- -- --
01.HNE 0.0024 0.0166 -- -- --
01.HNZ 0.0030 0.0494 -- -- --

(UW.QRMB) PGA: 0.02 PGV: 0.00 N47.77 W122.39 (UW.QPLV) PGA: 0.01 PGV: 0.01 N47.86 W121.91 (UW.QKTN) PGA: 0.01 PGV: 0.00 N47.81 W122.53 (UW.QHSH) PGA: 0.01 PGV: 0.01 N48.76 W122.50 (UW.QBRO) PGA: 0.04 PGV: 0.00 N48.07 W122.12 (UW.QPBC) PGA: 0.01 PGV: 0.00 N47.80 W122.33 (UW.QCDG) PGA: 0.00 PGV: 0.00 N48.10 W122.59 (UW.QJLF) PGA: 0.01 PGV: 0.00 N48.99 W122.74 (UW.QCON) PGA: 0.01 PGV: 0.01 N48.34 W122.34 (UW.QEGA) PGA: 0.02 PGV: 0.00 N47.98 W122.21 Epicenter: N48.60 W121.95 M=2.8