Event(s) between CH4-E1 and CH3-E2 ?
At the
deltaic site of Bet Zeyda (aka Beteiha), just north of the
Sea of Galilee (aka Lake Kinneret),
three-dimensional paleoseismic investigations
were conducted by multiple researchers over a number
of years using numerous trenches. The studies
examined a series of ~E–W-oriented
paleo-channels intersected and
sinistrally displaced by the ~N–S-trending
active Jordan Gorge Fault, producing a detailed
chronology of fault activity over roughly the past
2,000 years, based on
radiocarbon dating of
detrital charcoal. Once outliers are
excluded, this material appears to have a
residence time of decades rather than
centuries (e.g. see
Marco et al., 2005:200). Results indicate that
seismic events were more frequent and produced
greater fault slip during the first millennium CE
than in the second, suggesting the region may be
approaching another period of heightened seismic
activity.
In their analysis of channel offsets,
Wechsler et al. (2018:217, 219) identified ~2.7 m of
unaccounted difference between offset channels 3 and 4.
They proposed that “there may be a younger event between
CH4-E1 and CH3-E2” that left no preserved seismic
evidence in the trenches, potentially due to a
disconformity in the deposition sequence.
They further noted that the missing offset could be
“divided between two or three surface ruptures.”