Catalog of Earthquake Parameters and Description of Seismograph and Infrasound Stations at Alaskan Volcanoes--January 1, 2013, through December 31, 2017 By James P. Dixon [1], Scott D. Stihler [2], Matthew M. Haney [1], John J. Lyons [1], Dane M. Ketner [1], Katherine M. Mulliken [3], Thomas Parker [1], and John A. Power[1] [1] U.S. Geological Survey. [2] University of Alaska Fairbanks Geophysical Institute. [3] Alaska Division of Geological & Geophysical Surveys. Data Series 1115 2019 U.S. Department of the Interior U.S. Geological Survey Abstract: Between January 1, 2013, and December 31, 2017, the Alaska Volcano Observatory (AVO) located a total of 28,172 earthquakes at volcanoes in Alaska. The annual totals are 3,840, 5,819, 5,297, 6,151, and 7,065 earthquakes for the years 2013 through 2017, respectively. This represents an average of 5,634 earthquakes per year, which is comparable to the yearly number of earthquakes AVO located in the previous decade when AVO monitored a similar number of volcanoes. During the reporting period, there was significant seismic activity at 20 of the 34 volcanoes monitored by a seismograph network (Akutan Peak, Aniakchak Crater, Augustine, Mount Cerberus, Mount Cleveland, Fourpeaked Mountain, Mount Gareloi, Great Sitkin, Ilimana, Kanaga, Korovin, Makushin, Mount Martin, Okmok Caldera, Pavlof, Shishaldin, Mount Spurr, Tanaga, Ugashik-Peulik, and Mount Veniaminof) and two volcanoes without a monitoring network (Mount Recheshnoi and Bogoslof Island). Instrumentation highlights for this period include the establishment of a new subnetwork on Mount Cleveland, an accelerated transition from analog to digital telemetry at most subnetworks, and an increased number of broadband and infrasound sensors throughout the AVO network. The operational highlight was the return of seismic monitoring at Korovin and Ugashik-Peulik Volcanoes following network repairs. This catalog includes hypocenters, magnitudes, and statistics of the earthquakes located in 2013-17, along with the associated station parameters, and velocity models. Disclaimer: Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Contact Information: If you have any questions regarding this dataset, please feel free to contact: James P. Dixon, Geophysicist U.S. Geological Survey 2156 Koyukuk Drive Fairbanks, AK 99775 jpdixon@usgs.gov (907) 474-7099 ---------------------------------------------------- This Data Series includes the following Information. ---------------------------------------------------- DIRECTORY 2013-17_earthquake_summary.xlsx -- Excel spreadsheet file (also provided as a comma-separated value, .csv., file) of earthquakes located in the report period, 2012-17 with associated parameters described in appendix 7. Current.dataless -- AA dataless SEED volume with seismograph station location, instrumentation, response information or the AVO seismograph network (including but not limited to station location, station type, and system-response information) in the format of a dataless Standard for the Exchange of Earthquake Data (SEED) volume (International Federation of Digital Seismograph Networks, 2012). Text version of this data are included in the files metadata.location.xml, metadata.channel.xml, and metadata.response.xml. metadata.location.xml -- AVO seismograph station location data in XML format based on the International Federation of Digital Seismograph Networks (FDSN) StationXML schema. The StationXML schema defines an XML representation of the most important and commonly used structures of SEED 2.4 metadata with enhancements. The schema is available at http://www.fdsn.org/xml/station/. metadata.channel.xml -- AVO seismograph station location and channel data in XML format based on the FDSN StationXML schema. The StationXML schema defines an XML representation of the most important and commonly used structures of SEED 2.4 metadata with enhancements. metadata.response.xml -- AVO seismograph station location and response data in XML format based on the FDSN StationXML schema. The StationXML schema defines an XML representation of the most important and commonly used structures of SEED 2.4 metadata with enhancements. 1_README.txt -- This file. Reference Cited: International Federation of Digital Seismograph Networks, 2012, SEED reference manual--Standard for the Exchange of Earthquake Data, version 2.4: International Federation of Digital Seismograph Networks, 224 p., accessed April 9, 2019, at https://www.fdsn.org/seed_manual/SEEDManual_V2.4.pdf.