Early-est:     Western Idaho    2025.01.27-16:32:20.02    q:B      mb:4.4    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1737995539717.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1737995539717.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1737995539717.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1737995539717.mech.fmamp_amp_mwp.thumb.jpg

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details:
Magnitude: mb: 4.4 [15]    Mwp: - [0]    Mwpd: - [0]
Region: Western Idaho
Origin Time: 2025.01.27-16:32:20.02 UTC
Hypocenter: lat: 44.70°  lon: -114.36°  [+/-12km]    depth: 10km  [+/-8km]
Location Quality: qualityCode:  B     stdErr: 1.7s   assocPhases: 22   usedPhases: 18
minDist: 1.1°   maxDist: 136.2°   AzGap: 61°   2ndAzGap: 92°   atten: -1.94 [+/-0.34]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 8km   maxHorUnc: 12km   azMaxHorUnc: 40°
68%ConfEllipsoid:   semiMajorAxisLength: 14km   majorAxisAzimuth: 40°   majorAxisPlunge: 0°   semiIntermediateAxisLength: 10km   intermediateAxisAzimuth: 130°   intermediateAxisPlunge: 14°   semiMinorAxisLength: 8km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.7 [13]    Td: -s [0]    Td*T50Ex: - [0]    To: 10.0Xs [3]
Closest plate boundaries:
   Juan de Fuca \ North America [subduction zone]: distance: ~870km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       10km
       10km
       10km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1737995539717.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 297°   dip: 33°   rake: -77°
Nodal Plane 2: strike: 101°   dip: 58°   rake: -98°
Quality: azimuthalGap: -1°   stationPolarityCount: 17   misfitWeightCount: 7.7   misfit: 0.03   stationDistributionRatio: 0.40   meanDistP: 38.3   meanDistT: 33.6   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1737995539717.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 341°   dip: 37°   rake: -30°
Nodal Plane 2: strike: 96°   dip: 72°   rake: -123°
Quality: azimuthalGap: 81°   stationPolarityCount: 17   misfit: 0.23   stationDistributionRatio: 0.72   rmsAngDiffAccPref: 30.84   fracAcc30degPref: 0.77   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1737995539717.mech.hash.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: nan°
Nodal Plane 2: strike: nan°   dip: nan°   rake: nan°
Quality: azimuthalGap: -1°   stationPolarityCount: 0   misfitWeightCount: -1.0   misfit: -1.00   stationDistributionRatio: -1.00   meanDistP: -1.0   meanDistT: -1.0   qualityCode: X
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_amp_aref
./hypo.1737995539717.mech.fmamp_amp_aref.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: nan°
Nodal Plane 2: strike: nan°   dip: nan°   rake: nan°
Quality: azimuthalGap: -1°   stationPolarityCount: 0   misfitWeightCount: -1.0   misfit: -1.00   stationDistributionRatio: -1.00   meanDistP: -1.0   meanDistT: -1.0   qualityCode: X
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_amp_mwp
./hypo.1737995539717.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1737995539717
Event info last updated: 2025.01.27-17:32:38 UTC
Event first association/location: 2025.01.27-16:37:20 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI