Reported M6.7 Mid-Atlantic Ridge quake is dated Tuesday, not 4 November

The largest quake in the reports gathered, a magnitude 6.7 on the central Mid-Atlantic Ridge, was described as striking on Tuesday at 11:14 am IST. Our calendar puts Tuesday on 3 November, one day before the UTC day that counts. These are secondary reports, not catalog entries, so the timing is reported rather than established. The same coverage mentions a magnitude 6.1 quake in Panama, reported at 4:50:37 am IST by India's National Centre for Seismology. That is also tied to Tuesday, so it appears to fall outside the window as well. A GFZ-reported magnitude 5.4 Mid-Indian Ridge shock was dated 1821 GMT on Tuesday, which again points to 3 November. A preliminary report from Kyrgyzstan's Institute of Seismology gave a magnitude 5.9 quake at 3:34 a.m. local time on 4 November. That figure is provisional and from a regional institute. It sits below the 6.1 threshold, and USGS may report a different value. This is why the forecast leans toward the biggest quake of 4 November falling short of 6.1. The lean is not certain. The evidence does not include a full USGS list for the day, and a large quake could still occur or be revised upward before the cutoff of 2:00 PM ET on 5 November. The thing to watch is the USGS catalog's origin times and preferred magnitudes for the Panama and Kyrgyzstan events. A date or magnitude revision there would most change the picture.