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A High-Resolution Seismic Catalog for the Initial 2019 Ridgecrest Earthquake Sequence

Dates

Publication Date
Start Date
2019-07-04
End Date
2019-07-16

Citation

Shelly, D.R., 2020, A High-Resolution Seismic Catalog for the Initial 2019 Ridgecrest Earthquake Sequence: U.S. Geological Survey data release, https://doi.org/10.5066/P9JN6H0N.

Summary

I use template matching and precise relative relocation techniques to develop a high-resolution earthquake catalog for the initial portion of the 2019 Ridgecrest earthquake sequence, from July 4-16, encompassing the foreshock sequence and the first 10+ days of aftershocks following the Mw 7.1 mainshock. Using 13,525 routinely cataloged events as waveform templates, I detect and precisely locate a total of 34,091 events. Precisely located earthquakes reveal numerous cross-cutting fault structures with dominantly perpendicular SW- and NW-strikes. Foreshocks of the Mw 6.4 event appear to align on a NW-striking fault. Aftershocks of the Mw 6.4 event suggest that it further ruptured this NW-striking fault, as well as the SW-striking fault [...]

Contacts

Originator :
David R Shelly
Metadata Contact :
David R Shelly
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Natural Hazards
SDC Data Owner :
Earthquake Hazards Program

Attached Files

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DataS1_noXYZ.txt 2.47 MB

Purpose

Data constrain structure and behavior of 2019 Ridgecrest earthquake sequence

Map

Communities

  • USGS Data Release Products

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Additional Information

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9JN6H0N

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