Event CH2-E1 - Modeled Age 675-801 CE Open this page in a new tab

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.

Event CH2-E1 was identified by Wechsler et al. (2018), who inferred its existence “from the difference in offsets between Channels 1 and 2, without cross-fault evidence of an event horizon.” Wechsler et al. (2018) also discussed the possibility that CH3-E1 and CH2-E1 represent the same event. Wechsler et al. (2018:Table 3) date this event to 675–801 CE based on a Bayesian model of radiocarbon ages. They estimated that Event CH2-E1 produced ~1.3 m of left-lateral offset. Wechsler et al. (2018:214) note that the lack of exposure of Channel 2 across the fault means the measured offset “may represent slip from two events of smaller magnitude, similar to that which occurred with the 1759 earthquake.”

By Jefferson Williams