1 / 4

Location and Source Analysis of the January 2011 Circleville, Utah Earthquake Sequence

Christine Gammans. Location and Source Analysis of the January 2011 Circleville, Utah Earthquake Sequence. Introduction. Began January 3, 2011 M w 4.7 mainshock ̴ 98 aftershocks Portable station deployed Captured a large aftershock within one focal depth. Methods.

glora
Download Presentation

Location and Source Analysis of the January 2011 Circleville, Utah Earthquake Sequence

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Christine Gammans Location and Source Analysis of the January 2011 Circleville, Utah Earthquake Sequence

  2. Introduction • Began January 3, 2011 • Mw4.7 mainshock • ̴98 aftershocks • Portable station deployed • Captured a large aftershock within one focal depth

  3. Methods • Master Event relocations • hypoDD relocations (Waldhauser and Ellsworth, 2000) • Moment Tensors and their focal mechanism solutions (Minson and Dreger, 2008) • Extrapolation of moment tensor based on station’s amplitude amplification factors (AAF)(Tan and Helmberger, 2007)

  4. Issues and Expected Results • Strike-slip and normal focal mechanisms • Low angle faults • Station coverage • Seismic events confined to planes • Similar magnitudes for first and second principal stress axes • Correlate to local geology

More Related