<?xml version="1.0" encoding="UTF-8"?>
<seiscomp xmlns="http://geofon.gfz-potsdam.de/ns/seiscomp3-schema/0.13" version="0.13"><EventParameters><origin publicID="Origin/20250621215855.032997.931832"><time><value>2025-06-21T21:23:21.854668Z</value><uncertainty>0.687149703502655</uncertainty></time><latitude><value>42.8700065612793</value><uncertainty>3.1334221363067627</uncertainty></latitude><longitude><value>146.3585662841797</value><uncertainty>2.924302816390991</uncertainty></longitude><depth><value>35.737964630126953</value><uncertainty>5.803114891052246</uncertainty></depth><depthType>from location</depthType><methodID>LOCSAT</methodID><earthModelID>iasp91</earthModelID><quality><associatedPhaseCount>104</associatedPhaseCount><usedPhaseCount>89</usedPhaseCount><associatedStationCount>104</associatedStationCount><usedStationCount>89</usedStationCount><depthPhaseCount>0</depthPhaseCount><standardError>0.8126584616135022</standardError><azimuthalGap>133.89142990112305</azimuthalGap><maximumDistance>93.77882385253906</maximumDistance><minimumDistance>3.010911226272583</minimumDistance><medianDistance>69.52021789550781</medianDistance></quality><uncertainty><minHorizontalUncertainty>5.582353115081787</minHorizontalUncertainty><maxHorizontalUncertainty>7.288418292999268</maxHorizontalUncertainty><azimuthMaxHorizontalUncertainty>142.67431640625</azimuthMaxHorizontalUncertainty><preferredDescription>horizontal uncertainty</preferredDescription></uncertainty><evaluationMode>automatic</evaluationMode><evaluationStatus>confirmed</evaluationStatus><creationInfo><agencyID>gempa</agencyID><creationTime>2025-06-21T21:58:55.033008Z</creationTime><modificationTime>2025-06-21T21:58:59.46186Z</modificationTime></creationInfo><comment><text>0.77</text><id>mismatchScore</id><creationInfo><creationTime>2025-06-21T21:58:59.461813Z</creationTime><modificationTime>2025-06-21T21:58:59.461869Z</modificationTime></creationInfo></comment><comment><text>extendedGap</text><id>scevalMethod</id><creationInfo><creationTime>2025-06-21T21:58:59.461851Z</creationTime></creationInfo></comment><magnitude publicID="Origin/20250621215855.032997.931832/netMag/M"><magnitude><value>5.876595809735467</value></magnitude><type>M</type><methodID>weighted average</methodID><stationCount>66</stationCount><creationInfo><agencyID>gempa</agencyID><creationTime>2025-06-21T21:58:59.475849Z</creationTime><modificationTime>2025-06-21T22:00:08.421942Z</modificationTime></creationInfo></magnitude></origin><origin publicID="Origin/20250621215035.50235.1021164"><time><value>2025-06-21T21:23:21.756771Z</value></time><latitude><value>42.868629455566406</value></latitude><longitude><value>146.3631591796875</value></longitude><depth><value>11</value></depth><depthType>from moment tensor inversion</depthType><methodID>FocalMechanism</methodID><earthModelID>qseis_ak135f_continental</earthModelID><quality><usedPhaseCount>14</usedPhaseCount><associatedStationCount>9</associatedStationCount><usedStationCount>9</usedStationCount><azimuthalGap>240.84472456564515</azimuthalGap><maximumDistance>27.848434452730626</maximumDistance><minimumDistance>3.014550234631744</minimumDistance></quality><type>hypocenter</type><creationInfo><agencyID>gempa</agencyID><creationTime>2025-06-21T21:50:35.502299Z</creationTime></creationInfo></origin><focalMechanism publicID="FocalMechanism/20250621215035.50232.1021163"><triggeringOriginID>Origin/20250621214148.923182.931317</triggeringOriginID><nodalPlanes><nodalPlane1><strike><value>234.61976071077146</value></strike><dip><value>22.90837033631882</value></dip><rake><value>111.0813526629861</value></rake></nodalPlane1><nodalPlane2><strike><value>31.91035959238454</value></strike><dip><value>68.70279983657309</value></dip><rake><value>81.3570706310227</value></rake></nodalPlane2></nodalPlanes><principalAxes><tAxis><azimuth><value>287.2056751822398</value></azimuth><plunge><value>65.25250236421144</value></plunge><length><value>9.1682362742169946e+17</value></length></tAxis><pAxis><azimuth><value>128.55094389615306</value></azimuth><plunge><value>23.235481651780244</value></plunge><length><value>-1.0060571321251955e+18</value></length></pAxis><nAxis><azimuth><value>35.0703422179734</value></azimuth><plunge><value>8.04863465859527</value></plunge><length><value>89233504703496048</value></length></nAxis></principalAxes><azimuthalGap>240.84472456564515</azimuthalGap><misfit>0.039186168008840117</misfit><evaluationMode>automatic</evaluationMode><creationInfo><agencyID>gempa</agencyID><creationTime>2025-06-21T21:50:35.502299Z</creationTime></creationInfo><momentTensor publicID="MomentTensor/20250621215035.502372.1021166"><derivedOriginID>Origin/20250621215035.50235.1021164</derivedOriginID><momentMagnitudeID>Magnitude/20250621215035.502362.1021165</momentMagnitudeID><scalarMoment><value>9.6454111764619034e+17</value></scalarMoment><tensor><Mrr><value>6.0132455820160819e+17</value></Mrr><Mtt><value>-2.5726861144323645e+17</value></Mtt><Mpp><value>-3.4405594675837178e+17</value></Mpp><Mrt><value>3.4051787810038918e+17</value></Mrt><Mrp><value>6.1106880960049728e+17</value></Mrp><Mtp><value>-4.0976288709759565e+17</value></Mtp></tensor><varianceReduction>0.9608138319911599</varianceReduction><doubleCouple>0.8226074805215104</doubleCouple><clvd>0.1773925194784896</clvd><greensFunctionID>sc3gf1d:/qseis_ak135f_continental</greensFunctionID><filterID>BP 40s-100s</filterID><creationInfo><agencyID>gempa</agencyID><creationTime>2025-06-21T21:50:35.502299Z</creationTime></creationInfo><dataUsed><waveType>body waves</waveType><stationCount>9</stationCount><componentCount>9</componentCount></dataUsed><dataUsed><waveType>surface waves</waveType><stationCount>5</stationCount><componentCount>5</componentCount></dataUsed></momentTensor></focalMechanism><event publicID="rs2025mdnsjh"><preferredOriginID>Origin/20250621215855.032997.931832</preferredOriginID><preferredMagnitudeID>Origin/20250621215855.032997.931832/netMag/M</preferredMagnitudeID><preferredFocalMechanismID>FocalMechanism/20250621215035.50232.1021163</preferredFocalMechanismID><creationInfo><agencyID>gempa</agencyID><creationTime>2025-06-21T21:33:03.850619Z</creationTime><modificationTime>2025-06-21T21:59:06.257303Z</modificationTime></creationInfo><description><text>Off Coast of Hokkaido, Japan</text><type>region name</type></description><originReference>Origin/20250621215855.032997.931832</originReference><focalMechanismReference>FocalMechanism/20250621215035.50232.1021163</focalMechanismReference></event></EventParameters></seiscomp>
