Uchide2020GJI

Here, the focal mechanisms determined by Uchide (2020) is available. See Uchide2020_mecalist.txt. The file format is as follows:

• Column 1: Year of the origin time in Japan Standard Time (JST=UTC+9)
• Column 2: Month
• Column 3: Day
• Column 4: Hour
• Column 5: Minute
• Column 6: Second
• Column 7: Latitude of the hypocenter
• Column 8: Longitude
• Column 9: Depth (km)
• Column 10: Magnitude (JMA magnitude)
• Column 11: Strike (deg.) of one of nodal planes
• Column 12: Dip (deg.)
• Column 13: Rake (deg.)
• Column 14: Rank (quality) of the solution given by the HASH code.
• Column 15: Number of stations used for the focal mechanism determination.

References

Uchide, T. (2020). Focal mechanisms of small earthquakes beneath the Japanese islands based on first-motion polarities picked using deep learning. Geophysical Journal International, 223(3), 1658–1671, https://doi.org/10.1093/gji/ggaa401.