Catalog of deep low-frequency earthquakes beneath the Zao volcano and ordinary earthquakes

Catalog of deep low-frequency earthquakes beneath the Zao volcano and ordinary earthquakes.

Period: January 2012- May 2018

This dataset includes results of deep low-frequency earthquake (DLF) detection, hypocenter determination, waveform classification, and focal mechanism estimation, as well as duration estimation, arrival time picking, and characteristics of transient S/P ratio changes for both DLFs and ordinary tectonic earthquakes.

The detection, hypocenter determination, waveform classification, and focal mechanism estimation of DLFs have been published in the Journal of Volcanology and Geothermal Research (https://doi.org/10.1016/j.jvolgeores.2021.107321).

The analysis and results on the duration estimation, arrival time picking, and transient S/P ratio changes have been submitted to the Journal of Geophysical Research.

Included Files

1. catalog.txt

• DLF catalog from Ikegaya and Yamamoto (2021), including results of detection, hypocenter determination, and classification

2. template.txt

• Template catalog of DLFs used for matched filter detection in Ikegaya and Yamamoto (2021)

3. group_mec.txt

• Focal mechanism estimations for different DLF groups

4. A5_mec_er.txt / F2_mec_er.txt

• 100 focal mechanisms estimated with noise considerations for A5 and F2

5. dl_153_inf.txt

• DLF dataset used for duration estimation and transient S/P ratio change analysis

• Includes IH-DLF classification, subgroup information, and arrival times

6. oe_31_inf.txt

• Ordinary tectonic earthquake dataset for duration estimation

7. oe_146_inf.txt

• Ordinary tectonic earthquake dataset for transient S/P ratio change analysis, including arrival times