Hikaru Watanabe

Determination of Earthquake Magnitude at Regional Distance in and near Japan

On the Telemetered Array System for Microearthquake Observation at Abuyama Seismological Observatory

Frequency Distribution of Magnitude of the Ultramicro-Earthquakes

Determination of Earthquake Magnitude at Regional Distance in and near Japan (Second Report)

On the Upper Crustal Structure in the Southwestern Part of Kinki District, Central Japan

Some properties of Microearthquakes in the West of Kii Peninsula, Central Honshu, Japan

On the Automatic Data Processing System for Microearthquake Observation at Abuyama Seismological Observatory

A Consideration on the Source Spectrum of Earthquake

Determination of Earthquake Magnitude at Regional Distance in and near Japan (Third Report): On Relations between Magnitude and Period Corresponding to the Maximum Trace Amplitude@@@マグニチュードと最大振幅の周期との関係

Observations of Ultramicro-Earthquakes by Mobile System