Operational earthquake forecasting during the 2019 Ridgecrest, California, earthquake sequence with the UCERF3-ETAS model
March 4, 2020
The first Uniform California Earthquake Rupture Forecast, Version 3–epidemic‐type aftershock sequence (UCERF3‐ETAS) aftershock simulations were running on a high‐performance computing cluster within 33 min of the 4 July 2019 M 6.4 Searles Valley earthquake. UCERF3‐ETAS, an extension of the third Uniform California Earthquake Rupture Forecast (UCERF3), is the first comprehensive, fault‐based, epidemic‐type aftershock sequence (ETAS) model. It produces ensembles of synthetic aftershock sequences both on and off explicitly modeled UCERF3 faults to answer a key question repeatedly asked during the Ridgecrest sequence: What are the chances that the earthquake that just occurred will turn out to be the foreshock of an even bigger event?
Citation Information
Publication Year | 2020 |
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Title | Operational earthquake forecasting during the 2019 Ridgecrest, California, earthquake sequence with the UCERF3-ETAS model |
DOI | 10.1785/0220190294 |
Authors | Kevin R. Milner, Edward H. Field, William H Savran, Morgan T. Page, Thomas H Jordan |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Seismological Research Letters |
Index ID | 70209065 |
Record Source | USGS Publications Warehouse |
USGS Organization | Geologic Hazards Science Center |