{'fraction_non_alphanumeric': 0.017084282460136675, 'fraction_numerical': 0.0193621867881549, 'mean_word_length': 5.104166666666667, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Study on geomagnetic variations for Lunping and Quanzhou observatories before and after the M_S7.3 Taiwan Strait earthquake in 1994

The secular variations of the monthly mean difference between different observatories indicate that significant anomalous changes in the X and Z components for Lunping and Quanzhou observatories appear to be related to the M S 7 3 Taiwan Strait earthquake. The anomalous changes started before 4 years of the occurrence. The anomalous change of the X component appears to be negative, and the anomalous change of the Z component appears to be positive. Those magnitudes of anomalous changes are about 20～30 nT.Besides, the apparent-depth-ratio (for the period of 24 h) between Quanzhou and Tonghai observatories,or Lunping and Tonghai observatories, drops first and then goes up within the duration of 1 5 years before the earthquake occurrence.