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This report accompanies a prior report entitled Rapid reconnaissance survey of environmental and infrastructure damage from the September 2021 Mw 5.9 Woods Point earthquake, Victoria, Australia (Quigley and La Greca, 2021).
Some sites from the prior report were revisited but the predominant focus of this report relates to areas of study not described in the prior report.
The moment magnitude (Mw) 5.9 Woods Point earthquake occurred at 9:15 am on Wednesday 22 September 2021 (AEST). The epicentre of this earthquake is approximately latitude -37.506° and longitude 146.402°. The epicentre is located approximately 56 km SE of Mansfield (bearing 150°) and 15 km ENE of Woods Point (bearing 060°). The preferred estimated hypocentre depth of this earthquake is approximately 12.7 km.
A team of researchers from the University of Melbourne and Seismology Research Centre undertook further field mapping of the epicentral region on Friday the 8th of October 2021 to Tuesday 12th of October 2021 (also referred to in this report as Reconnaissance Survey 2) and Saturday the 23rd of October to Tuesday the 26th of October 2021 (also referred to as Reconnaissance Survey 3).
This report presents a map and individual site-based field observations of environmental damage and damage (or lack thereof) to engineered structures throughout the epicentral region. Data from 130 locations is presented, bringing the total number of locations up to 200. An Appendix showing imagery acquired from a Phantom 4 RTK drone is also appended.
