Early-est:     Off East Coast of Kamchatka    2025.08.03-19:27:12.61    q:A      mb:5.1*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754249236048.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754249236048.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754249236048.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: 5.1* [74]    Mwp: - [0]    Mwpd: - [0]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.03-19:27:12.61 UTC
Hypocenter: lat: 52.19°  lon: 160.45°  [+/-16km]    depth: 9km  [+/-13km]
Location Quality: qualityCode:  A     stdErr: 1.3s   assocPhases: 99   usedPhases: 81
minDist: 1.4°   maxDist: 136.5°   AzGap: 125°   2ndAzGap: 136°   atten: -1.11 [+/-0.27]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 9km   maxHorUnc: 16km   azMaxHorUnc: 0°
68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 0°   majorAxisPlunge: 14°   semiIntermediateAxisLength: 12km   intermediateAxisAzimuth: 167°   intermediateAxisPlunge: 75°   semiMinorAxisLength: 11km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [64]    Td: 1.6Xs [2]    Td*T50Ex: - [0]    To: 4.7s [60]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~30km
   North America / Pacific [subduction zone]: distance: ~410km
   Okhotsk / North America [subduction zone]: distance: ~410km
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 (30km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       9km
       9km
       9km
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.1754249236048.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 186°   dip: 85°   rake: -175°
Nodal Plane 2: strike: 95°   dip: 85°   rake: -5°
Quality: azimuthalGap: -1°   stationPolarityCount: 74   misfitWeightCount: 10.0   misfit: 0.16   stationDistributionRatio: 0.40   meanDistP: 49.7   meanDistT: 52.3   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754249236048.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.1754249236048.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 5°   dip: 86°   rake: 166°
Nodal Plane 2: strike: 96°   dip: 76°   rake: 4°
Quality: azimuthalGap: 125°   stationPolarityCount: 73   misfit: 0.31   stationDistributionRatio: 0.67   rmsAngDiffAccPref: 42.49   fracAcc30degPref: 0.53   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754249236048.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754249236048
Event info last updated: 2025.08.03-20:26:02 UTC
Event first association/location: 2025.08.03-19:34:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA