Early-est:     Off East Coast of Kamchatka    2026.06.19-08:03:42.70    q:B      mb:5.1*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1781856224588.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1781856224588.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1781856224588.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* [66]    Mwp: 6.6X [1]    Mwpd: 6.9Xinv [1]
Region: Off East Coast of Kamchatka
Origin Time: 2026.06.19-08:03:42.70 UTC
Hypocenter: lat: 52.67°  lon: 160.94°  [+/-18km]    depth: 5km  [+/-17km]
Location Quality: qualityCode:  B     stdErr: 2.1s   assocPhases: 88   usedPhases: 58
minDist: 15.1°   maxDist: 85.5°   AzGap: 152°   2ndAzGap: 163°   atten: -0.68 [+/-0.29]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 18km   azMaxHorUnc: 17°
68%ConfEllipsoid:   semiMajorAxisLength: 24km   majorAxisAzimuth: 198°   majorAxisPlunge: 21°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 308°   intermediateAxisPlunge: 42°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [44]    Td: 28.3Xs [1]    Td*T50Ex: - [0]    To: 17.0s [37]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~40km
   North America / Pacific [subduction zone]: distance: ~350km
   Okhotsk / North America [subduction zone]: distance: ~350km
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 (40km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       5km
       5km
       5km
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.1781856224588.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 208°   dip: 51°   rake: 50°
Nodal Plane 2: strike: 82°   dip: 54°   rake: 129°
Quality: azimuthalGap: -1°   stationPolarityCount: 50   misfitWeightCount: 4.1   misfit: 0.09   stationDistributionRatio: 0.28   meanDistP: 57.1   meanDistT: 55.6   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1781856224588.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.1781856224588.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (No solution available)
Nodal Plane 1: strike: 999°   dip: 99°   rake: 999°
Nodal Plane 2: strike: 324°   dip: 13°   rake: 135°
Quality: azimuthalGap: 151°   stationPolarityCount: 50   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1781856224588.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1781856224588
Event info last updated: 2026.06.19-09:02:02 UTC
Event first association/location: 2026.06.19-08:15:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA