Early-est:     Near East Coast of Kamchatka    2025.08.02-17:52:02.66    q:B      mb:4.9*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754157129845.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754157129845.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754157129845.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: 4.9* [47]    Mwp: - [0]    Mwpd: - [0]
Region: Near East Coast of Kamchatka
Origin Time: 2025.08.02-17:52:02.66 UTC
Hypocenter: lat: 52.16°  lon: 158.69°  [+/-16km]    depth: 62km  [+/-19km]
Location Quality: qualityCode:  B     stdErr: 1.9s   assocPhases: 109   usedPhases: 57
minDist: 0.9°   maxDist: 84.6°   AzGap: 137°   2ndAzGap: 150°   atten: -0.31 [+/-0.28]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 16km   azMaxHorUnc: 107°
68%ConfEllipsoid:   semiMajorAxisLength: 21km   majorAxisAzimuth: 287°   majorAxisPlunge: 23°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 104°   intermediateAxisPlunge: 67°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.3 [23]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.1s [21]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~150km
   North America / Pacific [subduction zone]: distance: ~490km
   Okhotsk / North America [subduction zone]: distance: ~490km
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 (150km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       62km
       62km
       62km
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.1754157129845.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 167°   dip: 37°   rake: -98°
Nodal Plane 2: strike: 357°   dip: 54°   rake: -84°
Quality: azimuthalGap: -1°   stationPolarityCount: 49   misfitWeightCount: 8.2   misfit: 0.07   stationDistributionRatio: 0.65   meanDistP: 37.0   meanDistT: 40.4   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754157129845.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.1754157129845.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 155°   dip: 82°   rake: 156°
Nodal Plane 2: strike: 249°   dip: 66°   rake: 9°
Quality: azimuthalGap: 121°   stationPolarityCount: 49   misfit: 0.27   stationDistributionRatio: 0.75   rmsAngDiffAccPref: 12.65   fracAcc30degPref: 1.00   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754157129845.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754157129845
Event info last updated: 2025.08.02-18:51:00 UTC
Event first association/location: 2025.08.02-18:04:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA