We just had several big earthquakes. The one that dropped us (and Livingston) out of lock was probably the 5.6M in Venezuela (the R-wave arrival time reported in Terramon matched our lockloss time). Shortly after we had another 5.8M in Chile, 4.8 in Venezuela, and another 6.8 in Chile. The seismic activity in the EQ band has already reached 1um/s and continues to increase. Relocking probably won't happen for at least another half an hour.
Livingston reported that they were locked for about 69 hours and 20 minutes before the earthquake(s) took them down. We have a new record to beat!