Jamal Walker December 24, 2024 AFRICA, BRANDVLEI, CAPE TOWN, CGS, DRIENIE VISSER, EARTHQUAKE, EMERGENCY RESPONSE, LET, MA, NATURAL DISASTER, NATURAL DISASTERS, NORTHERN CAPE, RAYMOND DURRHEIM, SOUTH AFRICA, SOUTH AFRICAN COUNCIL FOR GEOSCIENCE, SOUTH AFRICAN RESEARCH CHAIR, U. S. GEOLOGICAL SURVEY, UNITED STATES GEOLOGICAL SURVEY, UNIVERSITY OF THE WITWATERSRAND