TY - JOUR PY - 2022// TI - Near-epicenter weather conditions several hours before strong earthquakes (Ms ≥ 6) JO - Natural hazards A1 - Chen, Tao A1 - Li, Lei A1 - Zhang, Xiao-Xin A1 - Ma, Qi-Ming A1 - Li, Wen A1 - Ti, Shuo A1 - Wu, Han A1 - Li, Ren-Kang A1 - Luo, Jing A1 - Su, Jian-Feng SP - 57 EP - 68 VL - 110 IS - 1 N2 - Physical phenomena observed before strong earthquakes have been reported for centuries. Precursor signals, which include radon anomalies, electrical signals, water level changes and ground lights near the epicenter, can all be used for earthquake prediction. Anomalous negative signals observed by ground-based atmospheric electric field instruments under fair weather conditions constitute a novel earthquake prediction approach. In theory, the abnormal radiation of heat before an earthquake produces fair weather around the epicenter. To determine the near-epicenter weather conditions prior to an earthquake, 81 global earthquake events with magnitudes of 6 or above from 2008 to 2021 were collected. According to Harrison's fair weather criteria, in 81.48% of all statistical cases, the weather was fair 6 h before the earthquake; in 62.96% of all cases, the weather was fair 24 h before the event. Moreover, most of these cases without fair weather several hours before the earthquake were near the sea. Among the 37 inland earthquakes, 86.49% were preceded by 6 h of fair weather, and 70.27% were preceded by fair weather for 24 h. We conclude that the weather near the epicenter might be fair for several hours before a strong earthquake, especially for inland events.

Language: en

LA - en SN - 0921-030X UR - http://dx.doi.org/10.1007/s11069-021-04907-2 ID - ref1 ER -