Since 1962, strong-motion earthquakes and earthquake responses of structures have been observed in the major ports in Japan. By the end of December 1994, 4840 accelerograms had been accumulated and analyzed at the Geotechnical Earthquake Engineering Laboratory of the Port and Harbour Research Institute. 　The strong-motion earthquake observation network in port areas in Japan consists of 89 strong-motion accelerographs installed at 56 ports as of December 1994. 63 accelerographs out of 89 are installed at ground surface, 12 accelerographs are in ground by using bore-hole and the rest (14) are on structures such as quay walls. In the network, two types of accelerographs have been used; one is the SMAC-B2 accelerograph and the other is the ERS accelerograph. The SMAC-B2 accelerograph is of a mechnical type and the ERS accelerograph is of an electrical type equipped with either analogue or digital recorder. 　This report presents results of observation and preliminary analysis of records obtained in 1994, which are listed in the tables of Strong-Motion Earthquake Observation Results with their maximum accelerations, being classified in accordance with earthquakes. For the records of ground motions with maximum accelerations exceeding 20 Gals (=cm/sec2), computer plots of reproduced acceleration are presented. For the records of ground motions with maximum acceleration exceeding 50 Gals, computer plots of corrected acceleration, integrated velocity and displacement, response spectra, Fourier spectra, and loci of accelerations, velocities and displacements in horizontal plane are presented. 　In 1994, two great earthquakes occurred in northern part of Japan; one is the 1994 Hokkaido-Toho-Oki Earthquake on October 4 and another is the 1994 Sanriku-Haruka-oki Earthquake on December 28, and many after shocks were followed. Many records were observed from these earthquakes in the network. The records obtained from these earthquakes are compiled into reports entitled 'Strong-Motion Earthquake Records on the 1994 Hokkaido-Toho-Oki Earthquake in Port Areas' and 'Strong-Motion Earthquake Records on the 1994 Sanriku-Haruka-Oki Earthquake in Port Areas' besides this annual report.