jgg     2015 35 (6):  1069-1073    ISSN: 0412-1961  CN: 21-1139/TG Recognizing Aftershocks Merged in Main Shock’s Coda Wave of  Ludian M6.5 by Strong Acceleration Recording near Source Region Earthquake Administration of Yunnan Province, 148 Beichen Road, Kunming 650224, China Received: 2014-12-03  Revised: null  Online: 2015-12-01 Supporting info