Early-est: Near East Coast of Honshu, Japan 2017.03.11-19:57:47.15 q:A mb:5.3 Mwp:5.4 Mwpd:- Td*T50Ex:0.7 fmamp_polarity: hash: fmamp_amp_aref: fmamp_amp_mwp:

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

Earthquake Details:
Magnitude:	mb: 5.3 [153] Mwp: 5.4 [17] Mwpd: 5.7Xinv [7]
Region:	Near East Coast of Honshu, Japan
Origin Time:	2017.03.11-19:57:47.15 UTC
Hypocenter:	lat: 37.42° lon: 141.66° [+/-7km] depth: 33km [+/-9km]
Location Quality:	qualityCode: A stdErr: 1.3s assocPhases: 222 usedPhases: 188 minDist: 0.8° maxDist: 152.9° AzGap: 64° 2ndAzGap: 75° atten: -1.39 [+/-0.08]
Location Uncertainty:	68%ConfEllipse: minHorUnc: 3km maxHorUnc: 7km azMaxHorUnc: 116° 68%ConfEllipsoid: semiMajorAxisLength: 12km majorAxisAzimuth: 293° majorAxisPlunge: 50° semiIntermediateAxisLength: 5km intermediateAxisAzimuth: 160° intermediateAxisPlunge: 30° semiMinorAxisLength: 4km

Tsunamigeneic Assesment:

Discriminants:

Prob Underwater: >99%
T50Ex: 0.4 [132]    Td: 1.6s [14]    Td*T50Ex: 0.7 [14]    To: 8.2s [119]
Closest plate boundaries:
   Pacific \ Okhotsk [subduction zone]: distance: ~170km
Subduction geometry:    Zone: Kamchatka/Kurils/Japan    Slab depth at epicenter: 41km

Decision table (TEST!):

Event type:

Subduction Zone

Other Thrust/Normal

Strike-slip

Compatible close plate boundary?:

YES (170km)

Prob underwater:

>99%

Td*T50Ex:

0.7

Td*To:

13.1

Mwp magnitude:

5.4

Hypocenter depth:

33km

Slab depth at epicenter:

41km

First-motion Focal Mechanism (FMAMP_POLARITY): (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1:	strike: 264° dip: 61° rake: -171°
Nodal Plane 2:	strike: 169° dip: 82° rake: -29°
Quality:	azimuthalGap: -1° stationPolarityCount: 176 misfitWeightCount: 25.9 misfit: 0.18 stationDistributionRatio: 0.45 meanDistP: 16.5 meanDistT: 40.5 qualityCode: C
Method:	methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity

./hypo.1489262277941.mech.fmamp_polarity.mechanism.jpg

First-motion Focal Mechanism (HASH): (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1:	strike: 101° dip: 13° rake: -7°
Nodal Plane 2:	strike: 197° dip: 89° rake: -103°
Quality:	azimuthalGap: 75° stationPolarityCount: 176 misfit: 0.34 stationDistributionRatio: 0.69 rmsAngDiffAccPref: 31.86 fracAcc30degPref: 0.59 qualityCode: C
Method:	methodID: smi:gov.usgs/focalmec/HASH_1.2

./hypo.1489262277941.mech.hash.mechanism.jpg

First-motion Focal Mechanism (FMAMP_AMP_AREF): (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1:	strike: 162° dip: 25° rake: 65°
Nodal Plane 2:	strike: 10° dip: 68° rake: 101°
Quality:	azimuthalGap: -1° stationPolarityCount: 19 misfitWeightCount: 6.3 misfit: 9999.90 stationDistributionRatio: 0.92 meanDistP: 37.7 meanDistT: 18.6 qualityCode: C
Method:	methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_amp_aref

./hypo.1489262277941.mech.fmamp_amp_aref.mechanism.jpg

First-motion Focal Mechanism (FMAMP_AMP_MWP): (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/_amp_mwp

./hypo.1489262277941.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:localhost/ee/event/1489262277941
Event info last updated: 2017.03.11-20:58:46 UTC
Event first association/location: 2017.03.11-19:59:30 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: localhost

Early-est: Near East Coast of Honshu, Japan 2017.03.11-19:57:47.15 q:A mb:5.3 Mwp:5.4 Mwpd:- Td*T50Ex:0.7 fmamp_polarity: hash: fmamp_amp_aref: fmamp_amp_mwp:

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

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