Surface rupture on a secondary fault associated with the August 8, 2020, Mw 5.1 Sparta North Carolina Earthquake
Links
- More information: Publisher Index Page (via DOI)
- Open Access Version: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
On August 8, 2020 northwest North Carolina experienced a Mw 5.1 earthquake that caused damage to buildings and roads in the city of Sparta. A regional centroid moment tensor solution shows the earthquake was the result of slip on a reverse fault with a minor strike-slip component. InSAR data, from the Japan Aerospace Exploration Agency’s ALOS2 satellite, reveal a deformation field that is more complex than expected from a single reverse fault earthquake. The data also reveal an apparent fault rupture at the Earth’s surface that caused damage to local roads. Modeling of the InSAR deformation field indicates the fault rupture is associated with a very shallow normal faulting event with an equivalent Mw of about 5.1, that overprinted the reverse fault deformation field and possibly occurred aseismically.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Surface rupture on a secondary fault associated with the August 8, 2020, Mw 5.1 Sparta North Carolina Earthquake |
| Series title | The Seismic Record |
| DOI | 10.1785/0320210044 |
| Volume | 2 |
| Issue | 1 |
| Publication Date | March 24, 2022 |
| Year Published | 2022 |
| Language | English |
| Publisher | Seismological Society of America |
| Contributing office(s) | Earthquake Science Center |
| Description | 9 p. |
| First page | 59 |
| Last page | 67 |
| Country | United States |
| State | North Carolina |
| City | Sparta |