Web Link Compilation | Model and Data Comparison Plots : Listen to the Honshu earthquake & Historical Japan Tsunami The Honshu, Japan tsunami was generated by a Mw 9.0 earthquake (38.297°N 142.373°E ), at 05:46:24 UTC, 130 km (80 miles) E of Sendai, Honshu, Japan (according to the USGS). In approximately 25 minutes, the tsunami was first recorded at DART® buoy 21418. Forecast results shown below w