Database for the Preliminary Map of the Surface Rupture from the August 9, 2020, Mw 5.1 Earthquake Near Sparta, North Carolina-The Little River Fault and Other Possible Coseismic Features

This publication is a preliminary map and geodatabase of the coseismic surface rupture and other coseismic features generated from the August 9, 2020, Mw 5.1 earthquake near Sparta, North Carolina. Geologic mapping facilitated by analysis of post-earthquake quality level 0 to 1 lidar, document the coseismic surface rupture, named the Little River fault, and other coseismic features. The Little River fault is traced for approximately 4 kilometers and cuts the regional Paleozoic fabric (mean foliation, 063°/57°), and the dominant strike of joint sets are 0°–10°, 130°–150° and 320°–340°. Individual fault strands occur in an en echelon pattern within an approximately 10-meter-wide zone. Trenches across the Little River...

Tags: Alleghany County, Alligator Back Metamorphic Suite, Alluvium, Amphibolite, Ashe Metamorphic Suite, All tags... GPS measurement, Gneiss, Metasedimentary rock, North America, North Carolina, Schist, Seismology, Sparta, Structural Geology, USGS Science Data Catalog (SDC), United States, digitization, earthquakes, field methods, field sampling, foliation (geologic), geologic maps, geologic processes, geologic structure, geology, geophysics, geoscientificInformation, igneous rocks, information technology methods, lidar, lineation (geologic), metamorphic rocks, mineral resources, plutonic rocks, remote sensing, seismology, specimen collecting, structural geology, structure, tectonic processes, trenching, uplift, Fewer tags