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The continuous observation data recorded by broadband vertical pendulum tiltmeter at Huangmei station during the typhoons “BAVI” and “IN-FA” were studied. Wavelet decomposition and Fourier transform were used to investigate the disturbance and spectrum characteristics of the microseism signal which caused by the typhoons. The results show that the disturbance amplitude has an increase-peak-decrease pattern during the process of typhoons, and has a good correlation with the wind speed of typhoons, the distance between the typhoon center and the station. The dominant frequency range of the microseism caused by the typhoons is from 0.13 to 0.3 Hz, with the corresponding period of 3.3 to 7.7 s.

This work analyzes the quality of crustal tilt and strain observations during 2014, which were acquired from 269 sets of ground tiltmeters and 212 sets of strainmeters. In terms of data quality, the water tube tiltmeters presented the highest rate of excellent quality, approximately 91%, and the pendulum tiltmeters and ground strainmeters yielded rates of 81% and 78%, respectively. This means that a total of 380 sets of instruments produced high-quality observational data suitable for scientific investigations and analyses.