Early-est:     Off East Coast of Kamchatka    2025.08.01-12:39:40.41    q:A      mb:5.3*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754051985100.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754051985100.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754051985100.mech.hash.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 5.3* [63]    Mwp: 5.4X [1]    Mwpd: - [0]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.01-12:39:40.41 UTC
Hypocenter: lat: 51.86°  lon: 159.89°  [+/-14km]    depth: 15km  [+/-13km]
Location Quality: qualityCode:  A     stdErr: 1.6s   assocPhases: 104   usedPhases: 73
minDist: 1.4°   maxDist: 144.2°   AzGap: 116°   2ndAzGap: 143°   atten: -0.92 [+/-0.27]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 14km   azMaxHorUnc: 73°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 257°   majorAxisPlunge: 14°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 348°   intermediateAxisPlunge: 7°   semiMinorAxisLength: 12km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [60]    Td: 2.8Xs [1]    Td*T50Ex: - [0]    To: 21.0s [55]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~60km
   North America / Pacific [subduction zone]: distance: ~460km
   Okhotsk / North America [subduction zone]: distance: ~460km
Subduction geometry:    Zone: Kamchatka/Kurils/Japan: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (60km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       15km
       15km
       15km
Slab depth at epicenter:
       n/a
       -
       -
Tsunami and Rupture predictions (TEST!): No prediction: Event too small (Mwp<7.0) or too few Mwp readings (N<20)
./hypo.1754051985100.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 121°   dip: 69°   rake: 5°
Nodal Plane 2: strike: 29°   dip: 85°   rake: 159°
Quality: azimuthalGap: -1°   stationPolarityCount: 56   misfitWeightCount: 7.3   misfit: 0.07   stationDistributionRatio: 0.34   meanDistP: 50.6   meanDistT: 40.9   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754051985100.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (FMAMP_POLARITY_WAVEFORM):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: 0°
Nodal Plane 2: strike: 270°   dip: 90°   rake: 90°
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/_polarity_waveform
./hypo.1754051985100.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 193°   dip: 76°   rake: -175°
Nodal Plane 2: strike: 102°   dip: 85°   rake: -14°
Quality: azimuthalGap: 143°   stationPolarityCount: 56   misfit: 0.23   stationDistributionRatio: 0.69   rmsAngDiffAccPref: 19.91   fracAcc30degPref: 0.92   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754051985100.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754051985100
Event info last updated: 2025.08.01-13:38:01 UTC
Event first association/location: 2025.08.01-12:46:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA