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Estimation of seismotectonic tsunami hazard using focal mechanism

Event details: 12747

DescriptionMw 7.4 - FAR E OFF SANRIKU
Linkhttps://www.fnet.bosai.go.jp/event/tdmt.php?_id=20260420075200
Date, time2026-04-20 07:53:00
Coordinates, depth143.2° / 39.8°, 23.0 km
Seismic moment1.571e+20 N·m
NP1
Dip22.0°
Rake91.0°
Strike199.0°
NP2
Dip68.0°
Rake90.0°
Strike18.0°
Estimated Soloviev-Imamura tsunami intensity-1.1 ± 1.6
Focal mechanism created2026-04-20 08:01:26
Focal mechanism acquired2026-04-20 08:07:01

Maximum wave height

Coseismic deformation

Initial elevation of water surface