This version of the Mentone cluster replaces an earlier result
(mentone5) posted in GCCEL. The Mentone cluster is named after the town
of Mentone in west Texas, U.S.A. The cluster was originally motivated by
the occurrence of a 5.0 Mw earthquake on March 26, 2020 and the sequence
includes several other events near magnitude 5: 5.3 Mw on November 16,
2022, 5.2 Mw event on November 8, 2023, 4.9 Mw on February 15, 2025 and
5.2 Mw on May 4, 2025. The region is a major producer of gas and oil and
the bulk of the seismicity is likely induced by excessive waste water
injection, as in Oklahoma and elsewhere. The earliest events in the
sequence are not included, due to lesser quality datasets. The
distribution of seismograph stations in the source region is now quite
dense; this version of the cluster was limited to events since January
2021. Azimuthal coverage and near-source data are exceptionally good for
nearly all events. The entire cluster has been relocated with free
depth.
